[Clear cell sarcoma of the kidney: 3 case reports].

Unlabelled: Clear cell carcoma of the kidney is a distinct, highly malignant pediatric neoplasm. Its occurrence in adults is extremely rare and the subject of isolated case reports.

Material And Methods: We report 3 cases of clear cell sarcoma of the kidney in one men and two women between 23 and 65 years old (mean age is 40 years).

[Pseudo-tumoral colic metaplasia of the urinary bladder].

Colic metaplasia of the urinary bladder is a rare disease, secondary to a chronic irritative factor. In its minor form, it has the same clinical features as simple cystitis, but its major pseudoneoplastic form may be mistaken for bladder tumor. The diagnosis is essentially histological.

[Bilateral malignant non-Hodgkin's lymphoma].

Non Hodgkin's lymphoma (NHL) of the testis in young patient are rare. Bilateral involvement varies from 5 to 20% of cases and has a negative prognosis. The authors report a case of bilateral non Hodgkin's lymphoma of the testis in a 35 year old man.