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Uterus‐like mass: MRI appearance of a very rare entity
Author(s) -
Menn Kirsten A.,
Qin Lihui,
Fedoriw George D.,
Gillette Mary E.,
McCarthy Shirley
Publication year - 2007
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.20974
Subject(s) - histogenesis , medicine , uterus , differential diagnosis , malignancy , hysterectomy , radiology , endometriosis , lesion , leiomyoma , magnetic resonance imaging , endometrium , pathology , obstetrics , immunohistochemistry
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.