A40-year-old female presents with cramping and excessive vaginal bleeding. ultrasound reveals benign uterine tumors in the smooth muscle cells of the myometrium. these tumors are commonly called:

Leiomyomas.

Explanation:

Cancer may be defined as the uncontrolled growth of the cell that increases the angiogenesis in the body. Two main types of tumor are benign tumor and malignant tumor.

Leiomyomas may be defined as the benign tumor of smooth  muscle. This is also known as fibroids. The ultrasound reveals the benign tumor of myometrium and causes leiomyomas.

Thus, the correct answer is leiomyomas.