Hemangioma of the ovary is extremely rare. We report the case of a 32-
year-old woman who complained of pelvic pain due to a large right adne
xal mass. On surgical exploration a 10 x 8 cm hemangioma of the ovary
was resected. Expression of transforming growth factor-beta(1) was stu
died, and the possible role of this molecule in the development of the
tumor is discussed.