Müllerian adenosarcoma of the uterine cervix with sarcomatous overgrowth: A case report of aggressive disease in a young patient

INTRODUCTION: Müllerian adenosarcoma of the cervix with sarcomatous overgrowth and lymphovascular invasion is a rare and aggressive disease. We report a case of a young patient with Müllerian adenosarcoma with sarcomatous overgrowth in the uterine cervix and pelvic lymph node involvement. The patient received radical surgery but not adjuvant treatment, and the disease was aggressive with rapid relapse. PRESENTATION OF CASE: A 39-year-old woman was diagnosed with Müllerian adenosarcoma of the cervix with sarcomatous overgrowth, International Federation of Gynecology and Obstetrics (FIGO) stage IB2. She underwent abdominal radical hysterectomy and resection of the left external iliac lymph nodes for suspected metastatic involvement detected during surgical exploration but undetected via imaging. She refused adjuvant treatment, and the disease recurred 8 months after primary oncologic surgery, with rapid local, regional, and bone relapse. DISCUSSION: Our report suggests that sarcomatous overgrowth, a high mitotic index, a rhabdomyoblastic component, and lymphovascular compromise are risk factors for aggressive recurrence. Positron emission tomography-computed tomography (PET-CT) was used to identify relapse locations in addition to those detected via clinical examination of the vaginal vault. However, whether PET-CT is indicated for the initial detection of lymph node and bone metastases in FIGO stage IB tumors with surgical indication is unclear. CONCLUSION: A young woman with Müllerian adenosarcoma of the cervix with sarcomatous overgrowth presenting the risk factors for its recurrence experienced a rapid relapse after receiving radical surgery but not adjuvant therapy. Control of this aggressive disease via sequential radiotherapy and chemotherapy are recommended.