*56-year-old female present with pelvic pain.
What is the most likely diagnosis?
Answer
Answer: Uterine lipoleiomyoma
Case Discussion:
MR images revealed the uterine lipoleiomyoma.
Uterine lipoleiomyomas result from degeneration of smooth muscle cells in an ordinary leiomyoma and represent a rare benign tumor of the uterus. They have a reported incidence of 0.03-0.20% and are typically found in postmenopausal patients with typical uterine leiomyomas.
MRI
T1: hyperintensity
T1 FS: hypointensity
T2: hyperintensity
T2 FS or STIR: hypointensity
Differential diagnosis:
benign cystic ovarian teratoma
malignant degeneration of cystic teratoma
non-teratomatous lipomatous ovarian tumor
pelvic lipoma
pelvic liposarcoma
References:
1. Prieto A, Crespo C, Pardo A et-al. Uterine lipoleiomyomas: US and CT findings. Abdom Imaging. 25 (6): 655-7.
2. Tsushima Y, Kita T, Yamamoto K. Uterine lipoleiomyoma: MRI, CT and ultrasonographic findings. Br J Radiol. 1997;70 (838): 1068-70.