Uterus-like mass: MRI appearance of a very rare entity
✍ Scribed by Kirsten A. Menn; Lihui Qin; George D. Fedoriw; Mary E. Gillette; Shirley McCarthy
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 255 KB
- Volume
- 26
- Category
- Article
- ISSN
- 1053-1807
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✦ Synopsis
Abstract
We describe a 37‐year‐old patient who presented with right lower quadrant pain and intermenstrual bleeding. MRI demonstrated a 5 × 5 cm lobulated mass centered in the right uterine wall interpreted as suspicious for malignancy. A total hysterectomy was performed, and the gross and histologic features were consistent with the diagnosis of a uterus‐like mass. Uterus‐like mass is a benign entity that can be found in a variety of organs, and is characterized by endometrium surrounded by smooth muscle. It is an extremely rare lesion with only approximately 15 cases reported in the current literature. There is a lack of imaging literature on this entity, which is primarily described in the pathology literature. Its histogenesis is uncertain, but is theorized to be metaplastic change, congenital anomaly, and/or heterotopia. However, given the MRI appearance in this case, we feel that uterus‐like mass could be prospectively diagnosed or listed in a differential diagnosis. J. Magn. Reson. Imaging 2007;26:162–164. © 2007 Wiley‐Liss, Inc.