A case of torsion of a fallopian tube lipoma

YAMANISHI Megumi, MURAKAMI Hiroko, MAEDA Marisa, HIRATA Yuriko, SUIZU Ai, YASUHARA Yumiko, FUJII Tsuyoshi

doi:10.11437/sanpunosinpo.69.32

<p>We report a case of torsion of a rare fallopian tube lipoma. The patient was a 62-year-old woman who had been pregnant and borne a child once. She was referred to our hospital because of lower abdominal pain for four days. When she was first diagnosed, adnexal tenderness was present on the left side. T1 and T2 enhanced images of MRI showed a 6 cm sized tumor with high signal intensity on the left side of adnexa. This signal pattern was attenuated with fat suppression T1 enhanced image. We performed a laparotomy, suspecting torsion of a left ovarian mature cystic teratoma. The left adnexa had a dusky-red tumor mass emerging from the fimbriae of the fallopian tube; it was about the size of a goose egg and was twisted counterclockwise five times. A normal atrophic ovary was confirmed close to the tumor. The tumor on the fallopian tube was solid and lobulated, weighing 95g. Histopathological diagnosis confirmed that the tumor was composed of normal adipose cells. It also had connective tissue walls and fat lobules. Lipoma of the fallopian tube can be distinguished from ovarian mature cystic teratoma because the walls of its lobules are visible in MRI. As the walls of the lobules of the present tumor lesion could be seen in MRI scans, we diagnosed it as lipoma of the fallopian tube. [Adv Obstet Gynecol, 69 (1) : 32-36, 2017 (H29.2)]</p>

A case of torsion of a fallopian tube lipoma

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