[Eosinophilic cystitis: review of nine cases]

Eosinophilic cystitis is a rare inflammatory pathology. It remains a poorly understood entity. To report a series of adult cases of eosinophilic cystitis mimicking a bladder tumor. Retrospective study of cases of eosinophilic cystitis collected in an urology department. Diagnosis was established on a spontaneous bladder perforation in one case and on hematuria in the eight other cases. Histopatholgy studies confirmed the diagnosis. Eight patients underwent an endoscopic resection of bladder lesions followed by medical therapy with nonsteroidal anti-inflammatory drugs and cortimoxazole. An ileal bladder enlargement was performed in one case. Regular follow-up didn't reveal any recurrence. Eosinophilic cystitis is a rare disease simulating a tumor of bladder. Its clinical presentation is not specific and final diagnosis is based on pathology. Endoscopic resection will help to pathologic diagnosis. Associated to corticoids and antihistaminic drug endoscopic resection constitute the treatment of choice

[Primary synovialosarcoma: a case of unusual location]

Report a new case of primary Synovi alosarcoma. We report a case of a 16 year old girl, who presented with a tumefaction on the right clavicle evolving or 3 months. Various explorations carried out, in particular thoracic scanner and imagery by magnetic resonance, showed a multilocular cystic formation of the seat and the clavicle reaching the mediastinum. A pathological examination of the part [piece] highlighted a biphasic synovialosarcoma of grade III. This diagnosis was validated by the immunohistochemistry study and the detection of transcribed specific fusion of the synovialosarcoma, SYT-SSXI. The unusual locations of the primitive SS must be known because the diversity of their microscopic aspects may cause confusion in the diagnosis. The immunohistochemistry, and more recently the cytogenetic studies, helps to solve these problems of differential diagnosis