Small intestine angioleiomyoma as a rare cause of perforation: A case report

Figure 1 Computed tomography before the operation. A: Pneumoperitoneum (orange arrow); B: One 6.8 cm × 6.5 cm mass over the pelvic area (orange arrow).

Figure 2 Gross appearance during the operation. A: Pelvic mass surrounded by an abscess (white arrow); B: The tumor and a small section of the ileum was resected.

Figure 3 Histopathology of angioleiomyoma. A: Ileal tissue with a well-circumscribed subserosal tumor; B: Proliferative spindle smooth muscle cells bearing brightly eosinophilic cytoplasm and arranged in fascicles, punctuated by variable-sized vascular channels. The vessels were irregularly dilated with attenuated walls; C: The proliferative smooth muscle cells were highlighted by desmin immunostaining, while the cavernous vascular channels lacked a well-formed muscular wall.