Paratesticular neuroblastoma associated with subependymal giant cell astrocytoma.

We describe a case of neuroblastoma presenting as a paratesticular mass in infancy. To our knowledge this is the first case of a paratesticular neuroblastoma reported in the literature. An operation combined with radiotherapy and chemotherapy has achieved long-term survival despite obvious multifocal disease.

Spindle cell cancer of bladder during cyclophosphamide therapy for Wegener's granulomatosis.

A 38-year-old woman with long-standing Wegener's granulomatosis had remission with cyclophosphamide therapy after failure of response to other agents. Severe cystitis with massive blood loss necessitated a cystectomy. The bladder contained an unsuspected neoplasm, histologically resembling leiomyosarcoma, but desmosomes seen on electron-microscopic examination suggested that this was a spindle cell carcinoma.

Malignant peritoneal mesothelioma in an inguinal hernia sac.

An instance of malignant peritoneal mesothelioma that appeared to arise from an inguinal hernia sac is reported. This lesion appeared to be different from nodular mesothelial hyperplasia of hernia sacs.