case_images: PMC9076334_01
case_images: Findings on initial examination. A palpable subcutaneous mass is seen at the position surrounded by the red dashed line.
case_images: CRIM2022-7330013.001.jpg
case_images: PMC9076334_01_CRIM2022-7330013.001.jpg
case_images: fig1
case_images: The mass was partially adherent to the overlying skin and firmly adherent to the underlying rectus abdominis, and there was no skin redness or heat (Figure 1).
case_images: Preoperative MR images. (a) T1-weighted image. (b) T2-weighted image. A hypointense mass is observed within the rectus abdominis, as indicated by the yellow arrow. MR, magnetic resonance.
case_images: CRIM2022-7330013.002.jpg
case_images: PMC9076334_01_CRIM2022-7330013.002.jpg
case_images: fig2
case_images: MRI showed a substantial mass in the lower portion of the rectus abdominis, with slightly irregular borders and hypointensity on T1WI and T2WI (Figure 2).
case_images: Intraoperative findings. (a) Preoperative design. (b) After tumor resection. (c) Abdominal wall reconstruction using a mesh. (d) Wound closure. (e) Removed specimen.
case_images: CRIM2022-7330013.003.jpg
case_images: PMC9076334_01_CRIM2022-7330013.003.jpg
case_images: fig3
case_images: In addition, the posterior sheath of the rectus abdominis was partially resected, and the abdominal wall was reconstructed by implanting a soft artificial mesh (Figure 3).
case_images: Pathologic observations. Endometrial tissue, hemosiderin, phagocytic histiocytes, and granulation tissue are observed. Bar = 500 mum.
case_images: CRIM2022-7330013.004.jpg
case_images: PMC9076334_01_CRIM2022-7330013.004.jpg
case_images: fig4
case_images: Histopathological examination of the excised specimen revealed endometrial tissue, hemosiderin, phagocytic histiocytes, and granulation tissue; hence, the patient was diagnosed with endometriosis (Figure 4).