Early age renal synovial sarcoma.

Objective: We report a primary renal Synovial Sarcoma (SS) case and analyze its features.

Method: A 15 year old male presented with left abdominal mass and weight loss. CT scan images showed a 13 cm mass located in the lower pole of the left kidney.

[Primary malignant solitary fibrous tumor/hemangiopericytoma of the parotid gland].

Solitary fibrous tumor (SFT) was first described in the pleura by Lietaud in 1767; later in 1870, Wagner described the localized nature of this type of tumor and Klemperer and Rabin classified pleural tumors into two types: diffuse mesotheliomas and localized mesotheliomas. Recent years have seen the redefinition of this neoplasm, due to better technology; it is now proven that this neoplasm may have multiple different extrapleural origins including the head and neck regions. This diversity of locations is related to the particular mesenchymal histogenesis of SFT which allows its development from very unusual sites such as the salivary glands (SGs).

Testis T-cell lymphoma. Presentation of 2 cases and review.

Objective: To present two clinical cases of testicular T cell lymphomas and perform a review of this condition.

Methods/results: Case 1. Forty-two year old male presenting with painful mass in the right testicle which appeared 2 months earlier.

Primary yolk sac tumor of the urachus.

Introduction: Neoplasms originating from the urachus are rare. The most common urachal malignancy is adenocarcinoma, whereas extragonadal germ cell tumors, primarily of the urachus, are an extremely rare finding.

Objective: To describe a primary yolk sac tumor (YST) of the urachus in an adult.