The most common pelvic tumor is a benign neoplasm of smooth muscle origin that is termed:

• A. a cyst
• B. a polyp
• C. a fibroid
• D. an abscess

Answer: (C)

The most common pelvic tumor, particularly in women of reproductive age, is indeed a fibroid, also known as a leiomyoma. These tumors are benign growths that originate from smooth muscle tissue, primarily found in the uterus. Fibroids can vary in size and location, ranging from small, singular nodules to larger masses that may distort uterine anatomy.

Fibroids are notably prevalent and can be asymptomatic or lead to a range of symptoms, such as heavy menstrual bleeding, pelvic pain, and pressure on surrounding organs. Their smooth muscle origin contributes to their characteristic growth patterns and hormonal sensitivity, often influenced by estrogen levels during a woman’s reproductive years.

Other options provided are not benign tumors of smooth muscle origin. Cysts refer to fluid-filled sacs, polyps are typically growths attached to a mucosal surface, and abscesses are collections of pus resulting from infection or inflammation. None of these options describe the specific characteristics associated with fibroids, which are predominant in the context of benign pelvic tumors in women.