共查询到20条相似文献,搜索用时 125 毫秒
1.
Hidenori Tajima Yasufumi Yayashi Takamitsu Maehara Takao Morohoshi Toshio Imada Tomishige Amano Jiroh Kondoh 《Surgery today》1998,28(10):1078-1080
Endobronchial hamartomas are only rarely encountered. They cause irreversible lung damage due to bronchial obstruction if
not diagnosed early and treated properly. Among the various treatments for this rare disease, a surgical resection remains
the most popular. We herein report a case of a 53-year-old man presenting with an endobronchial hamartoma which was successfully
excised by laser irradiation via a rigid bronchoscope, along with a review of 113 patients with this disease reported in the
literature. 相似文献
2.
Neonates presenting with perineal masses are uncommon. When encountered, most perineal masses are anorectal malformations, sacrococcygeal teratomas, rectal prolapse, or duplication cysts.We present an otherwise healthy newborn with a patent anal canal and a pedunculated anal mass. The mass was initially believed to be a prolapsed rectal duplication cyst. Further evaluation for concomitant congenital abnormalities was negative. The patient underwent mass excision at the bedside under local anesthesia. Histopathologic evaluation revealed benign hamartoma.This case is presented because of its rarity, unique presentation, and simplicity of management. 相似文献
3.
Henry L. Chang MD Melinda F. Lerwill MD Allan M. Goldstein MD 《The breast journal》2009,15(5):515-520
Abstract: Breast hamartomas are uncommon lesions that have not been extensively characterized in the adolescent population. A search of patient records at our institution over a 17-year period identified seven cases of breast hamartomas in patients less than 18 years of age. We examine and report the clinical, radiographic, and pathologic characteristics of these cases. Breast hamartomas present as painless, palpable masses in the adolescent population. Ultrasonography reveals a well-defined, solid, oval mass, similar to the more common fibroadenoma. Two of the patients underwent core needle biopsy for diagnosis as the only intervention with the remainder undergoing surgical excision. None of the patients had any complications from surgery. There was one recurrence 9 months after initial excision. Histologically, the hamartomas consisted of densely packed, enlarged lobules set within a fibrous stroma. Breast hamartomas are rare in the adolescent population. The clinical and radiographic features are similar to the more common fibroadenoma, but the pathologic findings are diagnostic. Recurrence can occur if excision is incomplete. Increased recognition and accurate diagnosis will improve our understanding of the natural history of these lesions. 相似文献
4.
An instance of fibrous hamartoma of infancy (FHI) in the perianal region of an 8-mo-old infant, a hitherto unreported location, is described. The majority of the reported cases occur in the torso and upper extremities. The differential diagnostic features which aid differentiating FHI from other conditions is discussed. Although the tumor may recur after excision, a conservative surgical management appears adequate since all reported cases ultimately have proven to have an excellent prognosis. 相似文献
5.
A 39-year-old Japanese man with a splenic hamartoma who underwent surgery, is reported herein. The patient had a volvulus
of the transverse colon and acute Type A hepatitis. His symptoms included fever, abdominal pain and icterus and the serum
chemistry showed liver dysfunction and an elevation of hepatitis A antibody levels. Barium enema revealed a volvulus of the
transverse colon. Ultrasonogram showed a hypoechoic mass and angiogram showed evidence of stretching of the intrasplenic vessels
in the arterial phase and a hypovascular mass lesion in the venous phase. Macroscopically, the tumor was a well-defined, whitishyellow,
hard nodule. Microscopically, the tumor was composed of fibrous scar tissue containing scattered red pulp tissues and the
histologic diagnosis was a splenic hamartoma of the fibrous type. The patient’s postoperative recovery was uneventful. The
clinical features of splenic hamartoma are reviewed in this report and the differential diagnosis is also discussed. 相似文献
6.
TomonoriOta KojiKawai KazunoriHattori KatsunoriUchida HideyukiAkaza MasaokiHarada 《International journal of urology》1999,6(4):211-214
BACKGROUND: Hamartomas of the urinary bladder are extremely rare. We report on a case in a 58-year-old female who presented with the chief complaint of pain on urination. METHODS/RESULTS: Cystoscopy revealed a solid tumor on the left posterior wall of the bladder. Transurethral resection of the tumor failed to provide a definitive pathological diagnosis of the tumor. Thus, we performed partial cystectomy. The pathological diagnosis was hamartoma arising from the urinary bladder. CONCLUSION: This is the ninth case diagnosed as urinary bladder hamartoma to be reported in the literature. 相似文献
7.
Lene Birk-Sørensen Carolyn L. Kerrigan Gitte S. Jensen 《Journal of plastic surgery and hand surgery》2013,47(4):365-372
The inflammatory recruitment of leucocytes is a main cause of tissue damage in ischaemia/reperfusion (I/R) injury. Under appropriate flow conditions, E-selectin and L-selectin participate in the initial deceleration of neutrophils (PMNs) on inflamed endothelial cells before transmigration of PMNs into the surrounding tissue. Previous work from our lab showed increased survival of I/R injured myocutaneous flaps after treatment with anti-E/L-selectin. In this study, we have evaluated a combined antibody to E-selectin and L-selectin (EL-246) in porcine pure skin flaps exposed to I/R injury. Buttock skin flaps were exposed to eight hours of ischaemia and 20 hours of reperfusion. EL-246 or saline was given intra-arterially into the flaps. Estimated surviving area was not improved in the treated group. The lack of effect of EL-246 supports our suspicion that different mechanisms are involved in I/R injury in myocutaneous flaps compared with pure skin flaps. As a certain shear stress must be present for the selectins to exert their effect, a possible explanation for the diverse results in muscle and skin might be different reflow patterns. 相似文献
8.
Retrorectal cyst-hamartoma is a relatively rare disease. Total excision of the cyst is indicated to prevent infection and malign proliferation. We present a case of retrorectal cyst-hamartoma in a 55-year-old woman that was successfully treated by complete surgical excision. 相似文献
9.
Ilan Weinreb 《Head and neck pathology》2010,4(1):77-83
The sinonasal tract is a complex anatomic site with an exhaustive list of possible diagnoses. While most biopsies or resections
encountered routinely consist of common diagnoses such as inflammatory polyps and papillomas, occasional cases are more difficult,
and separating reactive or benign from malignancy can be challenging. One of the most poorly understood and daunting categories
is low grade glandular or tubular proliferations, particularly on small biopsies. Possible diagnoses such as reactive lesions,
respiratory epithelial adenomatoid hamartoma (REAH), seromucinous (glandular) hamartoma (SH) and low grade sinonasal adenocarcinomas
(LGSNAC) must be entertained. REAH is composed of respiratory epithelial lined submucosal glands with variable connection
to the surface and periglandular hyalinization. SH is a tubular proliferation reminiscent of normal serous glands which may
be associated with REAH. LGSNAC is a diverse group of bland tubular and/or papillary tumors, which have a recurrence potential
but an as yet uncertain potential for metastasis or mortality. The management for these lesions can be vastly different and
conservative management is preferable, making this distinction more than academic. However, complicating this category are
controversies surrounding their nature as reactive lesions versus neoplasms, the histologic and immunohistochemical overlap,
and possible precursor relationships between some of them. 相似文献
10.
11.
Retrorectal tumors are a rare group of tumors that can be of benign or malignant origin, the differential diagnosis concerns all retrorectal tumors. We report a case of a huge retrorectal cystic hamartoma in which surgical excision was performed.A 58 years-old female presented with a low back pain and constipation. Digital rectal examination found a renitent cystic mass compressing the posterior wall of the rectum. Colonoscopy showed a tumor compressing the rectum. Magnetic resonance imaging (MRI) scan showed a presacral cystic formation. Surgical resection using laparotomy was performed. The patient made a full recovery and was released eight days after the surgery. Histological examination of the mass revealed a retrorectal cystic hamartoma. 相似文献
12.
Mesenchymal hamartoma of the liver is the second commonest benign liver tumor in children, yet its biology and pathogenesis are poorly understood. Cytogenetic studies have suggested that the tumor may be a neoplasm rather than a hamartoma. Typically, it presents as a large benign multicystic liver mass in a child younger than 3 years amenable to complete resection. However, its imaging characteristics are variable, ranging from a few large cysts to a solid mass occupying one or both lobes of the liver. In addition, the tumor occasionally contains angiomatous elements or is multifocal. Most tumors gradually increase in size, some reaching enormous proportions, which can make surgery challenging. Paradoxically, a few undergo incomplete spontaneous regression and, on rare occasions, others have shown malignant transformation to undifferentiated (embryonal) sarcoma. These unusual pathological and biological features must be taken into account when considering the management of affected individuals. 相似文献
13.
This is the first report of an hepatic mesenchymal hamartoma causing congestive heart failure in an infant. These benign tumors usually present as a bulky abdominal mass but rarely can present with congestive failure when the angiomatous component is prominent. 相似文献
14.
Hamartoma and peliosis are uncommon splenic lesions. Approximately 120 splenic hamartomas and 40 splenic peliosis have been reported in the English literature. In the present study, a unique case of multiple splenic hamartomas with peliosis was reported. The splenic lesions were incidental findings in a 36-year-old man with ruptured sarcomatoid renal cell carcinoma. They were diagnosed clinically as metastatic renal cell carcinoma. On pathological examination, peliosis was noted in the splenic hamartomas as well as in the splenic parenchyma. In addition, the clinicopathological features of five other splenic hamartomas (including one giant hamartoma) noted in our department were presented. A re-evaluation of the features of the splenic hamartomas documented in the English literature was also done. 相似文献
15.
Orhan Bilge Ali Emre Uğur Çevikbaş Koray Acarli Aydin Alper Orhan Arioğul 《Surgery today》1996,26(7):513-516
Liver hamartoma is a rare type of benign tumor which usually occurs in the first few years of life. Although it is the second most common benign tumor in childhood, only about 100 cases have been reported in the English literature. Thus, it is extremely rare to encounter liver hamartoma in adults. This report details the clinical presentation and surgical management of a 24-year-old woman with a rapidly growing liver hamartoma. A right hepatic lobectomy was successfully performed and the patient was discharged in good health on the 10th postoperative day. 相似文献
16.
Fukahori S Tsuru T Tanikawa K Akiyoshi K Asagiri K Tanaka Y Kage M Kojiro M Mizote H Yagi M 《Surgery today》2007,37(9):811-816
Mesenchymal hamartoma of the liver (MHL) is an uncommon benign tumor found primarily in children younger than 2 years of age.
We report a rare case of MHL with a daughter nodule and atypical histological findings in a 14-month-old girl. On admission,
computed tomography, magnetic resonance imaging, and angiography showed a solid hypovascular mass with a central cystic area
in the liver. Laparotomy revealed a tumor, 8 cm in size, occupying segment 5 and parts of segments 4 and 6 of the liver, and
a small nodule, 10 mm in size, in segment 7. Thus, we performed a partial hepatic resection (S4–6) and tumor extirpation (S7).
The histological findings of both tumors were the same, but atypical of MHL. Recent studies on the pathogenesis of this tumor
have found neoplastic features such as genetic anomalies and malignant transformation. These findings suggest that the conventional
approach of completely resecting the tumor whenever possible is the best treatment. 相似文献
17.
Mesenchymal hamartoma is an uncommon cystic mass of the liver which occurs primarily in children. There are a few reports
of its occurrence in adulthood. Here, we present two cases in female patients, 54 and 51 years old. Radiological examinations
in both patients showed multiple cystic lesions in the liver. Surgically, total cystectomy was performed in the first patient,
while an unroofing procedure was done in the second patient (due to misdiagnosis of the lesion as a simple cyst of the liver).
On microscopic examinations of the lesion in each patient, a multilocular cyst was observed, lined by flattened epithelium
and surrounded by a mesenchymal component composed of mature connective tissue, arterial and venous vascular structures, peripheral
nerve bundles, and ductal structures. An immunohistochemical panel consisting of desmin, smooth-muscle actin, S-100, vimentin,
CD34, carcinoembryonic antigen, pancytokeratin, cytokeratin 7, cytokeratin 8, cytokeratin 17, cytokeratin 18, cytokeratin
19, and cytokeratin 20 was applied to paraffin sections. Immunoreactivity for cytokeratin 7 and cytokeratin 19 was observed
in cystic epithelium and ductal structures. Focal and patchy desmin immunoreactivity was observed in connective tissue. S-100
was positive only in peripheral nerve bundles. In conclusion, mesenchymal hamartoma of the liver in adulthood is a localized
tumoral abnormality that precedes birth, and which has delayed clinical presentation. These lesions seems to be related to
a maturation process. During this period of maturation, immature edematous stroma rich in mucopolysaccharides may convert
to mature paucicellular hyalinized connective tissue. This maturation process may be also related to loss of premalignant
potential of these tumors. 相似文献
18.
后腹腔镜下肾错构瘤切除术的临床观察(附5例报告) 总被引:1,自引:0,他引:1
钟小文 《岭南现代临床外科》2006,6(2):140-141
目的探讨后腹腔镜下肾错构瘤节除术的操作要点及临床价值。方法对我科自2004年8月至2006年1月,5例错构瘤患者在后腹腔镜下行肿瘤剜除术和肾部分切除术进行回顾性分析。结果5例手术全部获得成功,平均手术时间为85min,平均血量95ml,平均术后住院时间为6.8d,手术效果好无,并发症。结论该术式肿瘤切除彻底,创伤小,出血少,恢复快,有推广应用价值。 相似文献
19.
20.
This report presents the case of an 88 year old man with tracheal hamartoma discovered through a chest X-ray film showing
obstructive pneumonia before the manifestation of any symptoms associated with tracheal obstruction. Since surgical treatment
was unfeasible, the tumor was removed with success through electric cauterization using a gastrointestinal fiberscope. 相似文献