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??Value analysis of different clinical and imaging features in the diagnosis of benign and malignant nipple discharge HUANG Jia-hui??CHEN Xiao-song, WU Jia-yi, et al. Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
Corresponding author: SHEN Kun-wei, E-mail: kwshen@medmail.com.cn
Abstract Objective To analyze the value of different clinical and imaging features in the diagnosis of benign and malignant nipple discharge. Methods The clinical data of 233 patients treated with surgery for nipple discharge from January 2011 to February 2016 in Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine were analyzed retrospectively. A total of 233 cases without palpable mass were enrolled in the analysis. Thirty-three patients (14.2%) were diagnosed as breast cancer, and the other 200 patients (85.8%) were diagnosed as benign disease. The sensitivity, specificity, negative predictive value (NPV), and positive predictive value (PPV) of mammogram, ultrasound, MRI and their combination in predicting malignant disease were calculated. Results Patients with bloody nipple discharge (P=0.008), with suspicious calcification on mammography (P<0.001)??with segmental enhancement (P=0.003) or with washout-pattern kinetic curve (P=0.023) on MRI had higher risk of breast cancer. The sensitivity of mammography in diagnosing breast cancer was 57.6%, significantly lower than that of ultrasound (87.9%,P=0.012) and MRI (93.9%??P=0.001). The sensitivity of mammography combined with ultrasound or with MRI was 90.9% and 100% respectively, significantly higher than that of mammography alone (P=0.004, P<0.001) .Conclusion Bloody nipple discharge, with suspicious calcification on mammography, with segmental or with washout-pattern kinetic curve on MRI are risk factors for predicting breast cancer in patients with nipple discharge without palpable disease. The sensitivity of breast cancer can be elevated with ultrasound or MRI comparing with mammography alone.     

The Diagnostic Accuracy of Mammography and Ultrasound in the Evaluation of Male Breast Disease: A New Algorithm

Summary

Background

The purpose of this study was to define the diagnostic accuracy of mammography and ultrasound in the evaluation of male breast disease, and to suggest a diagnostic protocol for male breast disease.

Material and Methods

We retrospectively reviewed clinical, radiographic, and pathologic records of 75 patients. Breast Imaging Reporting and Data System (BI-RADS) category 4-5 mammograms and ultrasonograms were suggested as suspicious for malignancy.

Results

Of the 75 patients, 23 (31%) were considered to have suspicious lesions by mammography and/or ultrasonography. 13 of the patients were shown to have breast cancer. The remaining 52 (69%) were referred for biopsy by clinicians; all of the biopsy specimens were benign (gynecomastia). The accuracy data of mammography and ultrasonography are: sensitivity, 69 and 100%; specificity, 87 and 97%; positive predictive value, 53 and 87%; negative predictive value, 93 and 100%; and accuracy, 84 and 97%, respectively.

Conclusion

We suggest a new diagnostic algorithm for the evaluation of male breast disease in which ultrasonography may be used to evaluate palpable abnormalities as the first diagnostic tool of choice. To use and to trust imaging would decrease the number of false-positive biopsies that would be generated by physical examination alone.Key Words: Male breast cancer, Ultrasound, Mammography     

不同临床及影像学特征对良恶性乳头溢液疾病鉴别诊断价值分析

目的 探讨不同临床及影像学特征对良性及恶性乳头溢液疾病的诊断价值。 方法 回顾性分析2011年1月至2016年2月上海交通大学医学院附属瑞金医院因乳头溢液行手术治疗的233例病人的临床资料。乳腺癌33例（14.2%）,乳腺良性疾病200例（85.8%）。分析不同临床及影像学特征病人良性及恶性乳头溢液的检出率,计算乳腺X线摄影、乳腺超声、乳腺MRI及联合检查对乳腺癌诊断的灵敏度。 结果 血性溢液（P=0.008）、乳腺X线摄影伴可疑恶性钙化（P<0.001）、MRI表现为段样强化（P=0.003）、流出型时间-信号强度曲线（P=0.023）的病人乳腺癌检出率明显增高,差异有统计学意义。乳腺X线摄影对恶性乳头溢液诊断的灵敏度较低（57.6%）,劣于超声检查（87.9%,P=0.012）及MRI检查（93.9%,P=0.001）。乳腺X线摄影联合超声或MRI诊断的灵敏度分别为90.9%及100.0%,显著高于单用乳腺X线检查（P=0.004,P<0.001）。结论 对于不伴肿块的乳头溢液,血性溢液、乳腺X线摄影伴可疑恶性钙化、MRI段样强化、时间-信号强度曲线为流出型的病人患乳腺癌的风险较高。乳腺X线摄影对乳头溢液潜在恶性病变的检出率较低,联合超声或MRI检查可提高检出率。     

Negative predictive value of sonography and mammography in patients with focal breast pain

The purpose of this study was to determine the negative predictive value of mammography and sonography in a population of patients with focal breast pain referred for imaging evaluation. Eighty-six consecutive patients with focal breast pain in the absence of a breast mass were retrospectively identified from an imaging database. The electronic inpatient and outpatient records for the 86 patients were reviewed. For patients who were diagnosed with breast cancer, pathology reports were reviewed to determine whether the painful area corresponded to the patient's cancer. In addition, patient records were linked to the institution's cancer registry. Of the 86 patients, 26 patients were lost to follow-up and did not appear in the institution's cancer registry. Four patients were diagnosed with breast carcinoma, two of whom had incidental cancers that were detected mammographically by microcalcifications and were separate from and unrelated to the area of pain. Seven patients underwent biopsy at the site of breast pain with benign diagnosis. Imaging and clinical follow-up for the 51 patients with benign or negative imaging at the site of pain showed no abnormality with a mean follow-up of 26.5 months. The negative predictive value of mammography and sonography in patients with breast pain was 100%. The negative predictive value of mammography and sonography for focal breast pain is high. Negative mammography and sonography can be reassuring to the treating clinician if follow-up is planned when physical examination is not suspicious. However, if physical examination is suspicious, biopsy should not be delayed.     

Mammography of women with suspicious breast lumps

We analyzed 342 women who had suspicious breast lumps to determine if preoperative mammography could improve the malignancy yield of biopsy procedures. The number of women with cancer of the breast and false-negative mammogram reports ranged from 11% to 25%, depending on how equivocal mammogram reports were interpreted. Therefore, women with clinically suspicious breast lumps should undergo biopsy regardless of mammographic findings. A significant difference in the mean (+/- SD) predictive value of a positive mammogram existed between women above and below the age of 50 years (80 +/- 8 vs 43 +/- 14) because of the age-specific relative prevalence of benign and malignant disease, and because mammography had difficulty distinguishing between benign and malignant lumps (specificity, 70). Preoperative mammography of women with suspicious breast lumps is indicated to screen for occult carcinoma, to prevent biopsy sampling errors, and to judge the adequacy of lumpectomy if the lesion is malignant.     

Which breast to biopsy: an expanding dilemma.

To provide insight into the significance of findings reported from screening asymptomatic women for breast cancer, we reviewed 19,928 mammographic studies with the accompanying physical examination and correlated these findings with 554 breast biopsies. Of 83 breast biopsies with suspicious findings on both physical examination and mammography, 72 demonstrated breast cancer (87%). Of 155 biopsies for suspicious changes on mammography alone, 50 (32%) demonstrated breast cancer. The accuracy of suspicious mammography was independent of findings limited to physical examination, 34 (17%) had breast cancer; 31 were in 152 biopsies of patients with mammography interpreted as normal (20%) and three were in biopsies of 52 patients (6%) in whom a visualized mass was interpreted as benign. One hundred and twelve breast biopsies were performed for changes interpreted as normal or benign. Six malignancies were discovered (5%). No cancer was found in 31 biopsies for nonpalpable benign mammographic abnormalities. Our results emphasize the importance of discriminating between nonvisualization of a mass and mammographic recognition of either a benign or malignant tumor. The reliability of interpretation is considerably greater for a visualized lesion than a nonvisualized one.     

The utility of breast MRI as a problem-solving tool

Breast magnetic resonance imaging (MRI) is routinely used as a problem-solving tool, but its benefit for this indication remains unclear. The records of 3001 consecutive breast MR examinations between January 1, 2003 and June 6, 2007 were reviewed to identify all those performed for the clinical indication of problem solving. Details of clinical presentation, mammography and ultrasound (US) findings, follow-up recommendations, and pathology outcomes were recorded. Benign versus malignant outcomes were determined by biopsy or 12 months of follow-up imaging and linkage with the regional tumor registry. Problem solving was the clinical indication for 204 of 3001 (7%) of all examinations. Forty-two of 204 examinations (21%) had suspicious or highly suspicious MRI assessments with recommendation for biopsy and 62 of 204 (79%) examinations were assessed as negative, benign, or probably benign. Thirty-six biopsies were performed based on MRI findings and 14 cancers were diagnosed. Biopsy was indicated for 11 of 14 (79%) cancers based on suspicious mammographic or US findings identified prior to MRI. One incidental cancer was detected by MRI alone in a patient at high risk for breast cancer, and two cancers were detected in patients with suspicious nipple discharge and negative mammogram and US. A single false-negative MRI occurred in a patient whose evaluation for a palpable lump prompted biopsy. Problem-solving breast MRI rarely identifies otherwise occult cancer and can be falsely negative in patients with suspicious findings on mammogram and US. Until the benefits and risks of problem-solving MRI are clarified, it should be used judiciously.     

The role of pre-operative B mode ultrasound in the evaluation of the axillary lymph node metastases in the initial staging of breast carcinoma

The lymph node status of a breast cancer is one of the main prognostic criterias. This status is very important to determine the therapeutic approach. Physical examination alone is not sufficient to assess axillary metastases. Mammographic examination can give us an idea about breast cancer and axillary involvement. Ultrasonographic evaluation can improve the sensitivity of clinical and mammographic examination in assessing axillary lymph node status. 42 patients operated on for breast cancer between January 2000-January 2003 were included in this prospective study. In the study, we used axillary B mode ultrasound to evaluate the axillary lymph nodes. There are several sonographic features to categorize them. Axillary B mode ultrasound was performed to evaluate the axillary lymph nodes for metastatic involvement. In the evaluation of lymph nodes, the sonographic criteria were centric echogenity, thickening of cortex, length/width ratio (L/W) and the diameter of lymph nodes. Hyperechogenic hilus was accepted as a benign finding. The thickening of the cortex less than 50% of the thickening of the centric echogenic hilus was also accepted as a benign finding. L/W ratio below 2 and parameters above 2 cm were accepted as malignant findings. 168 lymph nodes in 42 patients were evaluated pre-operatively with axillary B mode ultrasound. As a result, these lymph nodes were defined as benign in 19 patients (45.2%) and malignant in 23 patients (54.8%). Axillary lymph node status was found as benign in 18 patients (42.9%) and malignant in 24 patients (57.1%) pathologically . Comparative results of ultrasound and axillary lymph node status can be seen on Table III. As a result, the sensitivity of axillary B mode ultrasound to show the metastases was found as 79.1%, specificity was 77.7%, positive predictive value 82.6% and negative predictive value 73.6%. We think some better results may be obtained in the future and these developments may affect the surgeon's decisions concerning axillary dissection for breast cancer operations.     

The diagnostic accuracy of mammography in the evaluation of male breast disease.

BACKGROUND: The role of mammography in the evaluation of male patients presenting with breast disease is controversial. This controversy is a function of the lack of specific data concerning the diagnostic accuracy of mammography when used in this clinical setting. The purpose of this study was to define the diagnostic accuracy of mammography in the evaluation of male breast disease. METHODS: One hundred and four prebiopsy mammograms from 100 patients with tissue diagnoses were read blindly by two independent radiologists, and placed into one of five predetermined categories: definitely malignant, possibly malignant, gynecomastia, benign mass, and normal. Radiologic/pathologic correlation was performed and the sensitivity (Sn), specificity (Sp), positive (Ppv) and negative predictive value (Npv), and accuracy (Ac) for each of the mammographic diagnostic category determined. RESULTS: The pathologic diagnoses were 12 cancers, including 1 patient with bilateral breast cancer, 70 cases of gynecomastia, 16 benign masses, and 6 normals. The accuracy data for the mammographic diagnostic categories are as follows: malignant (combined definitely and possibly malignant), Sn 92%, Sp 90%, Ppv 55%, Npv 99%, Ac 90%; and overall benignity (combined gynecomastia, benign mass, and normal), Sn 90%, Sp 92%, Ppv 99%, Npv 55%, Ac 90%. Six cancers (50%) coexisted with gynecomastia. CONCLUSIONS: Mammography can accurately distinguish between malignant and benign male breast disease. Although not a replacement for clinical examination, its routine use could substantially reduce the need for biopsy in patients whose mammograms and clinical examination suggest benign disease.     

Tc-99m Sestamibi Scintimammography for the Evaluation of Breast Masses in Patients with Radiographically Dense Breasts

Abstract: The objective of this study was to evaluate the usefulness of technetium-99m sestamibi (MIBI) scintimammography for the diagnosis of breast cancer in patients with palpable breast masses that cannot be adequately evaluated by mammography due to the presence of radiographically dense breasts. At 5 minutes after intravenous injection of MIBI, scintimammograms were obtained in 80 patients who had grade 3 or 4 glandular density on mammograms and a palpable breast mass. Excisional biopsy or FNA biopsy was obtained in 68 lesions in 67 patients. Scintimammography (22 true positive, 4 false positive, 41 true negative, 1 false negative) resulted in a sensitivity of 95.6%, specificity 91.1%, positive predictive value 84.6%, and negative predictive value 97.6%. Mammography (19 true positive, 21 false positive, 24 true negative, 4 false negative) resulted in a sensitivity of 73.9%, specificity 53.3%, positive predictive value 44.7%, and negative predictive value 80%. MIBI scintimammography has a higher sensitivity and specificity than mammography in patients with radiographically dense breasts. It is useful as an adjunct to mammography in those patients with radiographically dense breasts for the characterization of palpable masses. Although sensitivity of mammography in this cohort was high, its specificity was significantly lower than scintimammography. If validated in prospective studies it could provide a safe way of avoiding a breast biopsy in patients with benign findings on clinical exam, mammography, and needle aspiration cytology.     

Breast saving therapy: diagnostic problems in after care

From 1.1.1977 through 31.12.1985 two hundred seventy-five patients with stages pTis, pT1-2, pN0-1, cM0 breast cancer were treated by breast-conserving therapy. Six patients (2%) were lost to follow-up. Fifty-four patients developed significant subcutaneous or parenchymal induration in the treated breast. The induration was considered clinically suspicious for recurrence in 30/54 and non-suspicious in 24/54. Of the 30 suspicious indurations mammography was diagnostic or suggestive of recurrence in 12 (40%), and the diagnosis of recurrence could be confirmed microscopically in 16 (53%). Mammography showed no pathologic findings in 14/30 (42%) patients with suspicious indurations, and in 12/30 (40%) the impression of benignity was also confirmed microscopically. In patients whose mammograms were diagnostic or suggestive of tumor, malignancy was demonstrated by pathologic examination in all cases. In 21/24 (87.5%) clinically benign indurations no tumor could be found on microscopic examination. Twenty of these patients had a normal mammogram, and in only 1 of these was a recurrence discovered incidentally during a cosmetic operation. Four of the 24 patients with clinically benign indurations had pathologic mammograms, and in 2 of these the diagnosis of recurrence was established histologically. - The rate of agreement between suspicious clinical and mammographic or microscopic findings was about 50%, whereas the correlation for clinically benign indurations was greater than 80%.     

Ultrasound for accurate measurement of invasive breast cancer tumor size

Accurate presurgical assessment of tumor size is important for choosing appropriate treatment, especially with the increasing use of neoadjuvant and minimally invasive therapy. Breast sonography is increasingly used by breast surgeons as a part of their basic clinical evaluation. We undertook this study to compare clinical evaluation, mammography, and breast sonography for evaluating breast tumor size. A prospective analysis of 124 consecutive patients with palpable breast cancer was performed. Tumor masses belonging to T1 and small T2 were selectively selected. All women had clinical, mammographic, and sonographic assessment of tumor size. Measurements were compared to the pathologic tumor size of the surgical specimen. Both mammographic and sonographic measurements tend to underestimate tumor size, while clinical assessment tends to overestimate it. Ultrasound was significantly more accurate in determining tumor size. The maximal tumor diameter measured was within 2 mm of the pathologic tumor size in 45.2% of cases measured by breast ultrasound, 28.2% of cases measured by mammography, and 14.5% of cases measured clinically. These data suggest that ultrasound is more accurate than clinical breast examination and mammography in assessing breast cancer size. Ultrasound assessment should be used by surgeons as an accurate adjunct to clinical examination in outpatient breast clinics.     

乳管镜对以病理性乳头溢液为首发症状乳腺癌诊断价值分析

目的 评估乳管镜在以病理性乳头溢液为首发症状乳腺癌中的诊断价值。方法 回顾性分析2016年8月至2019年8月中国医科大学附属第四医院（380例）和新疆塔城地区人民医院（30例）收治的共410例以病理性乳头溢液为首发症状病人的临床资料,所有病人术前均行乳管镜、超声及钼靶检查。分析乳管镜检查中与乳腺癌诊断密切相关的因素,比较不同检查方式对乳腺癌诊断的敏感度、特异度、阳性预测值及阴性预测值。结果 410例病人均接受手术治疗,并进行术后病理学诊断,其中乳腺癌31例（7.6%）。乳管镜检查结果中,良性病例与恶性病例的溢液颜色、溢液量及病灶深度差异有统计学意义（P<0.05）。乳管镜对于乳腺癌术前评估诊断的敏感度为90.3%,明显高于超声（61.3%）和钼靶检查（48.4%）,三者特异度差异无统计学意义（P>0.05）。超声联合钼靶检查敏感度为71.0%,而在此基础上联合乳管镜检查可使诊断的敏感度提高至93.5%。结论 在以病理性乳头溢液为首发症状乳腺癌的诊断中,乳管镜检查的敏感度显著高于超声和钼靶,增加乳管镜检查能够显著提高乳腺癌诊断的敏感度,避免漏诊。     

Use and abuse of mammography in the early diagnosis of breast cancer

In the 8 years before 1980, 3958 women were examined in the St. Michael's Hospital breast clinic in Toronto. Of 302 women with breast cancer, 87 (29%) had normal mammograms. Breast cancer was found in 34 after at least one clinical and mammographic examination had given normal results. Of these, 6 (18%) cancers were detected only by mammography while, paradoxically, 23 (68%) were detected only by clinical examination. Normal mammograms are significantly (p less than 0.001) more frequent in young women with breast cancer and in those with small palpable breast cancers. Mammography is most productive when used as a routine study in older women who have clinically normal breasts. All women should start having them around the age of 40 to 45 years. How often they should be repeated is debatable. There is no evidence that they should be repeated annually. Under 35 years of age mammography for any reason is unrewarding. Biopsy of a breast lump that is solid on aspiration should never be delayed because of a normal mammogram. Biopsy of a radiologically suspicious lesion in the breast should never be delayed because the findings on clinical examination are normal.     

Added Value of Contrast‐Enhanced Spectral Mammography in Postscreening Assessment

To assess the value on diagnostic and treatment management of contrast‐enhanced spectral mammography (CESM), as adjunct to mammography (MG) and ultrasound (US) in postscreening in a breast cancer unit for patients with newly diagnosed breast cancer or with suspicious findings on conventional imaging. Retrospective review of routine use of bilateral CESM performed between September 2012 and September 2013 in 195 women with suspicious or undetermined findings on MG and/or US. CESM images were blindly reviewed by two radiologists for BI‐RADS^® assessment and probability of malignancy. Each lesion was definitely confirmed either with histopathology or follow‐up. Two hundred and ninety‐nine lesions were detected (221 malignant). CESM sensitivity, specificity, positive‐predictive value and negative‐predictive value were 94% (CI: 89–96%), 74% (CI: 63–83%), 91% (CI: 86–94%) and 81% (CI: 70–89%), respectively, with 18 false positive and 14 false negative. CESM changed diagnostic and treatment strategy in 41 (21%) patients either after detection of additional malignant lesions in 38 patients (19%)—with a more extensive surgery (n = 21) or neo‐adjuvant chemotherapy (n = 1)—or avoiding further biopsy for 20 patients with negative CESM. CESM can be performed easily in a clinical assessment after positive breast cancer screening and may change significantly the diagnostic and treatment strategy through breast cancer staging.     

Comparison between sonography and mammography for breast cancer diagnosis in oriental women after augmentation mammaplasty

Augmentation mammaplasty has become more popular in Taiwan. Therefore, clinical imaging is necessary to evaluate those patients who develop breast cancers. The purpose of this study was to evaluate the detection of breast diseases after augmentation mammaplasty by means of mammography and sonography. A retrospective follow-up study and analysis of diagnostic methods including mammography, sonography, physical examination, and aspiration cytology was conducted on 105 patients who underwent augmentation mammaplasty at Kaohsiung Medical University Hospital between 1989 and 2001. A total of 105 patients were identified in this study, and mean follow-up was 4 years. Two tumors from 8 cancer patients were visible on standard mammograms, and seven tumors were diagnosed as cancer by sonography. One of 15 benign breast tumors was interpreted as a suspected cancer, and 7 tumors were interpreted as normal findings on mammograms. Fourteen of 15 benign breast tumors were diagnosed correctly except for one suspicious case examined by sonography. Sonography showed the highest rate of diagnostic accuracy (91.3%) and mammograms had the lowest rate (73.9%). The accuracy rate of physical examination was 73.9%, and aspiration cytology was 90.0% accurate. This study affirms that sonography is a more useful diagnostic tool than mammography in Taiwanese women who have undergone augmentation mammaplasty.     

Breast cancers invisible on mammography

BACKGROUND: A proportion of the cancers 'missed' at mammography are invisible even with the benefit of hindsight. The aim of the present study was to identify a group of women with proven breast cancer whose mammograms did not show a suspicious lesion even in retrospect (i.e. the truly mammographically occult cancers), and to compare them with mammogram-positive cancers. METHODS: A total of 1757 breast cancers was diagnosed at the Wesley Breast Clinic's Screening or Diagnostic Services between July 1987 and August 1997. One hundred and twenty cases were identified where, after independent review by two of the authors, no mammographic abnormality could be found in the region where the cancer was subsequently found. These 120 cases were compared with 1548 cancers considered to have a lesion visible on mammography, whether benign, indeterminate, suspicious or malignant in appearance. RESULTS: In 90% of the mammogram-negative cancers, a clinical abnormality led to further investigation, while the remainder were found incidentally on ultrasound. There were a higher proportion of dense breasts, and of women aged 40-49, in the mammogram-negative cancers than in the mammogram-positive cancers. The mammogram-negative cancers were of smaller size overall, but three of them were surprisingly large (7-11 cm). In both the mammogram-positive and -negative cancers approximately 60% were ductal invasive cancers. CONCLUSIONS: Where factors are present that make mammographically occult malignancy more likely (e.g. age 40-49 and dense breasts), women may be targeted for further investigation by other modalities. This is essential in the presence of a clinical abnormality.     

Is mammography overused in male patients?

There is no agreed protocol for the use of mammography in evaluating the male breast. As a result, the tendency is to use the mammography more often than required. In order to define the role of mammography in men, we carried out a retrospective analysis of all male patients referred to the breast clinic with a history of breast lump between January 2001 and December 2003. The impact of mammography in the evaluation of male breast cancer cases was studied. A total of 220 male patients were referred to the breast clinic during this period. Of these, 134 men had a mammographic examination, with majority (96%) being performed prior to their consultation with the breast clinician as per the clinic protocol. Nine patients under the age of 35 years also had a mammographic evaluation. There were 4 cases of breast cancer diagnosed during this period. Breast cancer was suspected in all patients on clinical examination and was confirmed by biopsy. Breast cancer in men can be suspected on clinical examination in the majority of cases. Mammography appears unnecessary in most men and should not be used as a routine imaging procedure. One should consider imaging only those with clinically suspicious breast lumps to avoid unnecessary imaging particularly in young male patients.     

Role of technetium tetrofosmin scintimammography in the diagnosis of malignant breast masses and axillary lymph node involvement: a comparative study with mammography and histopathology.

OBJECTIVE: To assess the role of Technetium-99m (99mTc) tetrofosmin scintimammography in the detection of breast cancer and involvement of axillary nodes. DESIGN: Open study. SETTING: General hospital, Turkey. SUBJECTS: 128 women who presented with masses in the breast. INTERVENTIONS: Scintimammography, standard mammography, and either excision or fine-needle aspiration biopsy to confirm the diagnosis. MAIN OUTCOME MEASURES: Sensitivity, specificity, and positive and negative predictive value of scintimammography compared with mammography. RESULTS: Sensitivity, specificity, and positive and negative predictive value (%) of 99mTc scintimammography were 95, 96, 97 and 92, respectively. The corresponding figures for standard mammography were 87, 26, 68 and 52. Scintimammography changed the 34 false positive mammograms into true negatives, at the expense of four false negatives. The sensitivity of scintimammography in detecting axillary lymph node metastases was 72% and specificity 100%. CONCLUSION: Scintimammography with 99mTc tetrofosmin seems to be of value in the detection of breast malignancy and axillary metastases. It may help to avoid unnecessary operations in patients whose mammograms do not give a definite diagnosis.     

乳管镜对以病理性乳头溢液为首发症状乳腺癌诊断价值分析

目的 评估乳管镜在以病理性乳头溢液为首发症状乳腺癌中的诊断价值。方法 回顾性分析2016年8月至2019年8月中国医科大学附属第四医院（380例）和新疆塔城地区人民医院（30例）收治的共410例以病理性乳头溢液为首发症状病人的临床资料，所有病人术前均行乳管镜、超声及钼靶检查。分析乳管镜检查中与乳腺癌诊断密切相关的因素，比较不同检查方式对乳腺癌诊断的敏感度、特异度、阳性预测值及阴性预测值。结果 410例病人均接受手术治疗，并进行术后病理学诊断，其中乳腺癌31例（7.6%）。乳管镜检查结果中，良性病例与恶性病例的溢液颜色、溢液量及病灶深度差异有统计学意义（P<0.05）。乳管镜对于乳腺癌术前评估诊断的敏感度为90.3%，明显高于超声（61.3%）和钼靶检查（48.4%），三者特异度差异无统计学意义（P>0.05）。超声联合钼靶检查敏感度为71.0%，而在此基础上联合乳管镜检查可使诊断的敏感度提高至93.5%。结论 在以病理性乳头溢液为首发症状乳腺癌的诊断中，乳管镜检查的敏感度显著高于超声和钼靶，增加乳管镜检查能够显著提高乳腺癌诊断的敏感度，避免漏诊。