Adenosarcoma of the cervix uteri

Adenosarcoma of the cervix uteri is an extremely rare malignant mixed tumor (also known as Müllerian adenosarcoma of the cervix) that arises in the uterine cervix. It is a biphasic neoplasm composed of a benign or atypical epithelial (glandular) component combined with a malignant mesenchymal (stromal/sarcomatous) component. This tumor primarily affects the female reproductive system, specifically the endocervical region, and can present as a polypoid mass protruding from the cervical os. Key symptoms include abnormal vaginal bleeding, pelvic pain or pressure, vaginal discharge, and the presence of a cervical mass that may be detected on pelvic examination. Some patients may be asymptomatic, with the tumor discovered incidentally during routine gynecological evaluation. Adenosarcoma of the cervix uteri is far less common than its uterine corpus counterpart, which itself is already a rare neoplasm. The tumor can occur across a wide age range but is most frequently diagnosed in adult and postmenopausal women. A variant with sarcomatous overgrowth carries a more aggressive clinical course and a higher risk of recurrence and metastasis. The primary treatment is surgical, typically involving hysterectomy with or without bilateral salpingo-oophorectomy, depending on the patient's age, disease extent, and reproductive wishes. In cases of localized cervical disease, more conservative surgical approaches such as wide local excision or cervical conization may be considered, particularly in younger patients desiring fertility preservation. The role of adjuvant chemotherapy and radiation therapy remains uncertain due to the rarity of the disease, though they may be considered in cases with high-risk features such as sarcomatous overgrowth, deep myometrial invasion, or advanced stage at diagnosis. Long-term follow-up is essential due to the risk of local recurrence.

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