Needle core vs open biopsy for diagnosis of intermediate- and high-risk neuroblastoma in children

BackgroundOpen biopsy has been the mainstay for definitive diagnosis of neuroblastoma in pediatric patients. However, needle core biopsy may represent a faster, less invasive, and safer alternative to open biopsy in children. The purpose of this study was to compare safety and efficacy between needle core and open biopsy in the diagnosis of patients with intermediate- and high-risk neuroblastoma at our institution.MethodsWe retrospectively reviewed the medical records of children with intermediate- and high-risk neuroblastoma who underwent open or needle core biopsies from 2002 to 2010. Data collected included patient demographics, tumor size, sample adequacy for diagnosis and risk stratification (histology and cytogenetics), length of hospital stay, time to initiate chemotherapy after biopsy, need for repeat biopsy, and both intraoperative and postoperative complications. Mann-Whitney U and Fisher's exact tests were used for statistical analysis.ResultsDuring the study period, 7 patients underwent needle core primary biopsies (5 intermediate-risk primary tumors and 2 high-risk primary tumors), and 4 patients underwent needle core biopsy for metastatic tumors, whereas 21 patients had open biopsies (10, intermediate risk; 11, high risk). Median age at biopsy and median tumor size were similar in both groups. There was no significant difference in adequacy of biopsy, need for repeat biopsy, time to initiate chemotherapy, length of stay, or minor complications. The rate of major complications differed significantly between the 2 groups with 0% after needle core biopsy vs 48% after open biopsy (P = .027).ConclusionsIn children, needle core biopsy is comparable in efficacy with open biopsy in the diagnosis of intermediate- and high-risk neuroblastoma with significantly lower rates of major postoperative complications. These findings warrant a larger scale evaluation of diagnostic needle core biopsies in pediatric patients with solid tumor.     

Needle biopsy in the diagnosis of testicular leukemia in children

Aggressive chemotherapy in patients with acute lymphoblastic leukemia has resulted in a marked upsurge in patient survival. In the course of their management, testicular biopsy and rebiopsy have an important role. We evaluated the histological findings in 50 sets of open wedge and simultaneous needle core biopsy specimens from 44 testes of children with acute lymphoblastic leukemia to determine the accuracy of the needle biopsy technique in the evaluation of testis involvement in acute lymphoblastic leukemia. We conclude that needle biopsy of the testis in acute lymphoblastic leukemia is highly accurate and correlates well with the conventional open wedge biopsy, and it may have a role in the management of children with acute lymphoblastic leukemia.     

Needle core biopsy for the assessment of unilateral breast masses in men

Although unilateral male breast swelling is relatively common, a histological diagnosis is infrequently obtained. From 1998 to 2003 we routinely performed needle core biopsy on all men presenting with unilateral breast swelling in whom there was diagnostic uncertainty. Of 113 patients, 93% had gynaecomastia, two patients had primary breast cancer and one had metastatic lymphoma. One patient had chronic mastitis. Gamolenic acid treatment produced a 73% response rate amongst patients presenting with pain. Core biopsy is a safe and effective method of diagnosing unilateral male breast swelling, which allows either confident reassurance or definitive treatment of those with cancer or pain.     

Needle core biopsy of the breast with a spring-loaded device.

Over a 2-year period, 151 outpatients with a palpable breast lump requiring needle core biopsy were randomized to a Tru-Cut 14-G (T14), Bioptycut 14-G (B14) or Bioptycut 18-G (B18) needle. Use of a Biopty gun resulted in less pain than a Tru-Cut needle. An inadequate sample was obtained after two needle passes in 11 of 49 (T14), none of 51 (B14) and two of 51 (B18) patients (chi 2 = 14.6, 2 d.f., P = 0.0007). Tissue samples were assessed by a single pathologist for tissue volume and overall diagnostic value; the B14 group scored better than the B18 and T14 for both of these parameters (P < 0.003). The sensitivities were 68 (T14), 88 (B14) and 96 (B18) per cent (overall chi 2 = 7.3, 2 d.f., P = 0.026). The Biopty gun with a 14-G needle results in a higher sampling success rate, greater diagnostic sensitivity and a better specimen quality than the Tru-Cut, and is much easier to use.     

超声影像引导的乳腺病灶经皮穿刺组织病理学检查的临床应用

目的评价超声影像引导的乳腺病变经皮空芯针穿刺（CNB）组织病理检查方法的准确性及其影响因素。方法回顾性分析2000年1月至2006年5月收治的2152例乳腺病变患者经皮CNB组织病理检查结果及临床资料。比较穿刺与切除组织病理诊断之间的一致性,并对未进行切除活检的患者进行随访。结果在最终诊断为乳腺癌的1461例患者中,CNB病理结果显示,乳腺癌1339例,假阴性率为3．5％（51／1461）,低估率为4．9％（71／1461）。50．0％（17／34）的导管上皮非典型增生和46．3％（25／54）的乳头状病变在重新活检中诊断为癌。B超引导CNB的假阴性率（2．1％,22／1068）显著低于徒手引导CNB（7．4％,29／393）（P〈0、05）。两名专责医师CNB的假阴性率（1．2％,8／681）显著低于非专责医师（5．5％,43／780）（P〈0、05）。738例经CNB诊断良性病变中,417例进行手术切除活检,50例诊断为乳腺癌,205例良性病变随访2—29个月（中位随访时间10、2个月）,发现1例恶性病变。结论超声影像引导的乳腺病灶经皮病灶穿刺组织病理检查是准确可靠的诊断方法。对于穿刺病理结果为高危病变者应予切除活检。     

Needle core length is a quality indicator of systematic transperineal prostate biopsy

OBJECTIVE: To analyse the length of needle cores sampled as a quality indicator in systematic transperineal prostate biopsy. We assessed the correlation of core length with the other clinical and topographic parameters. MATERIAL AND METHODS: We prospectively evaluated data from 509 consecutive patients who underwent a first set of transrectal ultrasound-guided transperineal prostate biopsy for suspected prostate cancer. Fourteen cores were sampled from each patient. Needle cores were stretched and placed in tissue cassettes between two nylon meshes according to the pre-embedding methods of prostate needle biopsy specimens. For single biopsy core, the measurement of length (in millimetres) and any percentage of cancer in the biopsy specimen were reported. RESULTS: The mean length of 7,126 analysed cores was 14.14+/-4.35mm. All cores were longer than 10mm. The mean length of needle cores sampled did not correlate with patient age, total prostate-specific antigen value, digital rectal examination, and prostate volume. The whole mean length of the six samples from the peripheral zone of the right lobe was higher than the mean corresponding value of the six samples from the left lobe peripheral zone (p<0.001). The transperineal approach allows a greater sampling of the prostate apex than of the midgland and prostate base (p<0.001). CONCLUSIONS: The length of the needle cores sampled during transperineal prostate biopsy fulfils the parameters of quality required by pathologists for an appropriate evaluation of the biopsy specimen.     

Transrectal aspiration biopsy versus transperineal core biopsy for the diagnosis of carcinoma of the prostate

Transrectal aspiration and transperineal core biopsies were performed on 38 patients with suspicious prostatic examinations. The false negative rate was 14 per cent by the core method but no cancer was missed by the aspiration technique. There was insufficient material for diagnosis in 14 per cent of the biopsies obtained by the core technique but in only 3 per cent with the aspiration biopsy method. Malignant cells were confirmed by cytology in 1 patient who had had 2 normal core biopsies. The cytological grade was only moderately consistent with the Gleason sum. No complications developed after either procedure. Transrectal aspiration biopsy offers several advantages over conventional biopsy methods and should be used regularly to diagnose abnormalities of the prostate.     

乳腺X线立体定位穿刺活检术对早期乳腺癌的诊断价值

目的探讨乳腺X线立体定位穿刺活检术（SMCNB）对早期乳腺癌诊断的应用。方法对21例钼钯X线摄片诊断为可疑早期乳腺癌患者应用SMCNB。将手术病理结果与穿刺取材病理结果相比较。结果与手术病理结果比较，SMCNB诊断阳性率为85．71％，无假阳性。结论SMCNB对早期乳腺癌活检定位准确，操作简单，安全可靠。