Solitary schwannoma of the glans penis

Schwannomas of the penis are extremely rare. A 69-year-old man presented with a circumscribed asymptomatic tumor on the dorsum of the glans penis. Histopathologic examination of the surgical specimen showed a benign schwannoma.     

阴茎多发性神经鞘瘤的临床特征(附1例报告并文献复习)

目的:探讨阴茎多发性神经鞘瘤的临床特征。方法:报告1例阴茎多发性神经鞘瘤患者的临床资料,结合复习相关文献。结果:术前拟诊为阴茎多发性脂肪瘤,行肿瘤切除术,手术治疗后恢复良好。病理报告为阴茎多发性神经鞘瘤。免疫组化:S-100( ),SMA(-)。随访半年无复发。结论:阴茎多发性神经鞘瘤缺乏典型的临床表现,临床诊断困难,需经病理学检查,免疫组化检测肿瘤特异性标志物S-100、SMA有助于确诊。手术切除是治疗本病的主要方法。     

Penile schwannoma

Schwannoma of the penis is extremely rare. A 65-year-old man presented with a subcutaneous tumor of penile shaft without any other symptoms. Histopathologic examination of the excised tumor revealed benign schwannoma. No recurrence has been observed over the 6 months since the surgery.     

Primary schwannoma of the thyroid gland involving the isthmus: report of a case

Primary thyroid schwannomas are extremely rare tumors and there are very few reports of such tumors in the literature. This report presents a rare case of schwannoma involving the isthmus of the thyroid in a 47-year-old male, presenting as a symptomatic predominating cold nodule within a multinodular goiter. The patient underwent total thyroidectomy. The histological examination indicated an Antoni A-type schwannoma. The clinical, radiological and pathological findings of the tumor are discussed, emphasizing the difficulty in reaching a correct preoperative diagnosis. Only 18 cases of primary schwannoma of the thyroid gland have so far been described in the literature and, this is only the second report of thyroid schwannoma localized in the isthmus.     

Schwannoma of the penis: a common tumour at a rare site

Schwannoma is a benign tumour arising from neurilemmal cells and is commonly seen along cranial nerves. We describe the case history and histologic findings of a young adult with a schwannoma at a very rare site: the penis. Surgical excision was done and the patient remains disease-free after 2 years.     

Schwannoma of the penis: preservation of the neurovascular bundle

Schwannoma of the penis is a rare tumor. We report a case of penile schwannoma in a young man who was accurately diagnosed preoperatively with the help of gray-scale and color flow Doppler ultrasonography, and confirmed by magnetic resonance imaging. The tumor was successfully resected to completion, with preservation of the neurovascular bundles, preserving the patient's erectile function.     

Intramedullary schwannoma. A case report

The intramedullary localization of schwannoma is rare, corresponding to 0.3% of all intraspinal tumors. We report a case of intramedullary schwannoma without symptoms suggestive of neurofibromatosis. This patient presented with symptoms of spinal compression. Total removal of the tumor was achieved. The literature is reviewed about of this rare localization of schwannoma.     

Juxtadrenal schwannoma

Schwannoma which originated from Schwann cells is a nerve sheath tumour. Schwannomas of the urogenital tract are very rare. We present a case of a juxtadrenal schwannoma in a 66 years old female patient. To date only three juxtadrenal schwannoma cases have been described in the literature.     

Pancreatic schwannoma: Report of a case and review of literature

Connective tissue tumors of pancreas are uncommon, among them pancreatic schwannoma is very rare tumor, very few cases were reported in literature. Aggressive resections like whipple’s procedure, or distal pancreatectomy are not necessary for pancreatic schwannoma as it rarely goes to malignant change and simple enuclation is sufficient.In our patient pancreatic schwannoma is associated with simple cyst in liver and absence of one kidney. Here, we are presenting a case of pancreatic schwannoma treated by simple enucleation.     

Angiosarcoma Developing in a Vagal Schwannoma: A Rare Case Report

Angiosarcoma arising in a schwannoma is extremely rare with only fourteen cases having been reported in the literature to the best of our knowledge. Amongst these fourteen, only five cases developed from vagal schwannoma. We describe a case of epithelioid angiosarcoma arising in a long standing vagal schwannoma in a 41 years male patient. Grossly the tumor was well encapsulated with variegated cut surface. On microscopy the tumor had two distinct components composed of benign schwannoma and malignant angiosarcoma which were further confirmed by immunohistochemistry. On further work up, he was found to have multiple distant metastases. This is the sixth reported case of angiosarcoma arising in a vagal schwannoma. The proposed histogenesis of this rare transformation, its prognostic factors and a review of literature regarding this entity is discussed.     

阴囊神经鞘瘤1例报道并文献复习

目的 探讨阴囊神经鞘瘤的疾病特点,提高对阴囊神经鞘瘤的临床诊治水平.方法 对1例阴囊神经鞘瘤病例进行报道,并结合文献报道的7例资料进行分析总结.结果 8例中,良性神经鞘瘤4例,平均直径6.5 cm,平均病程4.4年,年龄34～48岁,平均年龄38.4岁,超声检查提示肿瘤与周围组织界限清楚;1例合并阴茎癌良性神经鞘瘤,患者年龄78岁;3例恶性神经鞘瘤平均直径12.6 cm,平均病程2.2年,平均年龄75岁,超声检查提示肿瘤边界不清,内部回声不均.结论 阴囊神经鞘瘤极为罕见,目前确诊依赖于术后病理检查.对于阴囊肿瘤应尽早手术切除,手术是目前治疗的有效方法,以避免恶性肿瘤的诊治延误.     

Oculomotor nerve schwannoma

Oculomotor nerve schwannoma is an extremely rare tumour. Only 26 sufficiently described cases of oculomotor nerve schwannomas were found in the literature. The case of an oculomotor nerve schwannoma in a 12-year-old girl is presented. Clinical manifestations, as well as the aim for the radical resection with oculomotor function preservation are reviewed.     

Greater superficial petrosal nerve schwannoma

Summary Greater superficial petrosal nerve (GSPN) schwannoma is a very rare type of facial nerve schwannoma. Including our case, only 6 schwannomas have been reported to originate from the GSPN. Clinical features, imaging, diagnosis, differential diagnosis and treatment are discussed reviewing other cases in the pertinent literature.     

Multiple penile schwannomas and their magnetic resonance imaging characteristics

Penile schwannoma is a rare encapsulated nerve sheath tumor of the peripheral nerve in the penis. Here, we report a case of multiple, painful, beadlike, nodular tumors in the penis of a 40-year-old man. The nodules showed well-defined margins and hypoechoic areas on gray-scale ultrasonograms. They showed high signal intensity on fat-saturated T2-weighted magnetic resonance imaging (MRI) and intense enhancement on gadolinium-enhanced T1-weighted MRI, compatible with their myxoid content. The nodules pressed against the tunica albuginea and some caused inward indentation, which we considered as indirect evidence of the tumor location. In conclusion, the MRI characteristics and location of the nodules together enable presurgical diagnosis of penile schwannomas, which is especially useful in asymptomatic patients and those unwilling to undergo surgery.     

Epidermal cyst of median raphe

Cysts of the penis are rare and references to them in standard textbooks are sketchy. A case report of a congenital epidermal cyst of the median raphe of the penis is presented; therapy involved excision of the mass. Review of the literature is given.     

Ancient schwannoma presenting as a thoracic mass

BACKGROUND: Ancient schwannoma is a rare variant of schwannoma, histologically showing atypical features that may result in erroneous diagnosis of a malignant tumor. There are only few reported cases in literature. CASE DESCRIPTION: We report a case of a 34-year-old man who was found to have giant mediastinal tumor. He underwent thoracotomy to remove the mass, which was proven to be ancient schwannoma on histopathology. CONCLUSIONS: Clinical and radiological findings are important aids for further consideration of surgical removal of these potentially respectable tumors with good outcome.     

Malignant renal schwannoma

Renal schwannomas are rare tumors. There have been only 4 cases (2 benign and 2 malignant) reported in the literature. We report a third case of a malignant renal schwannoma and review the literature on this subject.     

Glomus tumor of the penis

Glomus tumors of the penis are extremely rare. A patient with multiple regional glomus tumors involving the penis is reported. A 16-year-old boy presented with the complaint of painless penile masses and resection of the lesions was performed. The pathologic diagnosis was glomus tumor of the penis. This is the ninth case of glomus tumor of the penis to be reported in the literature.     

Solitary benign schwannoma in the psoas muscle

Solitary benign schwannoma in the psoas muscle is extremely rare. Here we present a case report of a woman who had solitary benign schwannoma in the psoas muscle not associated with von Recklinghausen's disease. This is the fifth case reported in the literature.     

Schwannoma of the Penis: Report of a case and review of the literature

A case of schwannoma located in the penile shaft in a 65-year-old male is described. Special stain using S-100 immunoperoxidase was useful in establishing the diagnosis in this case. We reviewed the literature on penile schwannoma and focussed on the diagnosis of this rare ailment.