[Amyloid-producing leiomyoma of the womb--a complete morphological study and possible etiology].

Case study of a 41 year old woman with tumor-related amyloidosis in a singular intramural leiomyoma of the uterine corpus. The tumor has been thoroughly revised with electron microscopy and underwent a histological, histochemical, and imunohistochemical studies. A hypothesis of its origin has been suggested. To our knowledge, this is the first documented case of amyloid-producing leiomyoma.