Biomedical subjects
Publications and source records attributed to Z S Rassekh.
This report describes the first case of rhabdomyosarcoma of the trachea in a 65 year old man with a five week history of cough, wheezing, and hemoptysis. The tumor, presumably originating in the submucosal tissue, was characterized as an intratracheal polypoid mass showing no local invasion or distant metastasis. Rhabdomyosarcoma of the lower respiratory tract and its histogenesis are briefly reviewed and discussed.
This is a case report of an endodermal sinus tumor occurring in the pineal region of a 14-year-old boy who died 4 weeks after surgery and irradiation. Germ cell tumors of this type demonstrate a selective overgrowth of yolk sac endoderm associated with extraembryonic mesoblast and arise preferentially in the gonads of young children. This tumor in the pineal region is rare and carries a grave prognosis as in other extragonadal sites. A summary of previously reported cases is also presented.
A case of malakoplakia is presented which was confined to the renal parenchyma of both kidneys in a thirty-five-year-old woman in whom fatal renal failure developed in three weeks. Bilateral renal malakoplakia is rare, and unlike malakoplakia of the bladder, it behaves as a progressive, destructive, and fatal disease.
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