Tumor of the tunica vaginalis testis: case report of neurilemmoma

Benign intratesticular schwannoma: a rare finding

Schwannoma is a peripheral nerve tumour, occasionally located in the genitourinary tract. We described an extremely rare case of intratesticular neurinoma in a 79-year-old patient.

[Retroperitoneal benign schwannoma. Report of a new case]

The schwannoma is a tumor resulting from the Schwann cells of neural shwath, being its retroperitoneal localization quite unusual. This tumor is clinically unspecified and in most of the cases it originates symptoms coming from the compression of the close structures when its localization is retroperitoneal. Its diagnosis is quite often fortuitous being confirmed by anatomopathological study afterwards. The treatment is surgical radical exeresis with subsequent followup. We report a new case of this uncommon retroperitoneal pathology in a female patient showing a nonspecific clinic. Two years after the surgery she remains asymptomatic without any radiological evidence of recidive.

Penile frenulum neurilemoma: a rare and unusual genitourinary tract tumor

We report a case of neurilemoma arising from the frenulum of the penis. This tumor is extremely rare at this location. Diagnosis is made easily by frozen section pathological study. We recommend simple excision as the treatment of choice.

Renal parenchymal neurilemoma: a rare and unusual kidney tumor

We report a case of a neurilemoma arising from the renal parenchyma. Renal neurilemoma is an extremely rare tumor, with only 5 cases previously reported. Because so little is known of its natural history and potential for malignancy we recommend radical nephrectomy as the treatment of choice.

Benign retroperitoneal neurilemoma without von Recklinghausen's disease: a rare occurrence

We describe a rare case of a primary retroperitoneal neurilemoma that was confused initially on ultrasonography and computerized tomography for a renal carcinoma. These tumors vary in vascularity on arteriography, are more often solid than cystic and usually are benign in the absence of von Recklinghausen's disease. The preferred treatment is wide surgical excision.