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Case of the Week


2019-29 / SEPTEMBER 2 (CONTRIBUTOR: FRANCESCA KHANI)

CASE HISTORY



A 4 year old boy presented with gross hematuria and a solitary bladder mass was identified on a renal/bladder ultrasound.   Cystoscopic biopsy confirmed malignancy, and a partial cystectomy was performed.  Representative H&E images and an immunostain for INI1 are shown.   The tumor was also negative for pan-cytokeratin, EMA, S100, desmin, myogenin, myoD1, and CD34. 





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Quiz

 1.  What is the correct diagnosis?

       a.  Rhabdomyosarcoma

       b.  Proximal type epithelioid sarcoma

       c.  Neuroblastoma

       d.  Extrarenal malignant rhabdoid tumor

       e.  Wilms tumor







About GUPS

The Genitourinary Pathology Society (GUPS) was formed with the vision of advancing the care of patients with urologic diseases through enhancements of best practices, research, and education in the subspecialty of Urological Pathology.

GUPS is an official Companion Society of the United States and Canadian Academy of Pathology (USCAP).

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