Fig. 27
From: Identifying the deceiver: the non-neoplastic mimickers of genital system neoplasms
Extrapelvic endometriosis mimicking metastatic implants. A 35-year-old woman with a history of gastric adenocarcinoma now presenting with palpable mass in the abdominal wall. a Gray scale US image shows solid mass with lobulated contours (arrows) within the left rectus abdomens muscle. b Axial postcontrast fat suppressed T1W MR image shows intense enhancement of the mass (arrows). The lesion was isointense to rectus abdominis muscle on T1W image, and hypointense on T2W images with internal hyperintense foci (not shown). The lesion was resected with a preliminary diagnosis of metastatic implant but histopathologic study confirmed endometrioma within rectus abdominis muscle