Rare Histological Features of Endometrial Carcinoma: Malignant Mixed Müllerian Tumour with Corpus Cancer Syndrome — A Case Report

Abstract

Malignant mixed Müllerian tumour (MMMT) is an uncommon variant of endometrial carcinoma that carries a poor prognosis due to its aggressive nature. We present a case of a 59-year-old woman who presented to our outpatient department with persistent abnormal vaginal bleeding for two months. Following biopsy, the tumour was diagnosed as uterine carcinosarcoma. She underwent a total abdominal hysterectomy with bilateral salpingo-oophorectomy and bilateral pelvic lymph node dissection. Final histopathological examination revealed features consistent with MMMT (carcinoma component: 80%, sarcoma component: 20%). According to the International Federation of Gynaecology and Obstetrics (FIGO), the tumour was staged as IIIB. One month postoperatively, the patient remained healthy and symptom-free.