A Uterine Malignant Solitary Fibrous Tumor Accompanied By Squamous Metaplasia And Carcinoma In Situ Of Endometrium

Solitary fibrous tumor of the uterus is extremely rare. This paper presents a case who has developed squamous metaplasia and carcinoma in situ of endometrium. The 67-year old female presented with abdominal pain, postmenopausal bleeding, and a 4 cm mass of the uterine serosa. Histological examination with immunohistochemistry of the tumor biopsy revealed diagnosis of malignant SFT. The patient underwent a hysterectomy with right salpingo-oophorectomy and left salpingectomy. No recurrence has been observed for 6 months. Uterine SFT with squamous metaplasia and carcinoma in situ of endometrium has not been reported. Immunohistochemistry was helpful in diagnosis.