原発性膀胱横紋筋肉腫の1剖検例

Abstract

The report deals with a case of rhabdomyosarcoma of th e urinary bladder in a 66 years old female. The tumor had arisen primarily from the right lateral wall of the bladder and later extended to the uterus, vagina and right pelvis and metastasized to the bilateral lungs and omentum. O n histological examination, the striated muscle spindles or cells were not readily seen in this particular case which suggested us that these malignant cells are poorly differentiated. Necessity of extensive search was proven in order to find well differentiated rhabdomyoblasts in such case. This type of rhabdomyosarcoma is supposed to be more common in adult subjects than has been appreciated in the past.