Clinicopathological characteristics of digestive system angioleiomyomas: case report and literature review
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Angioleiomyomas are benign soft tissue tumors originating from the vascular wall. Although angioleiomyomas mainly occur in extremities, followed by head, neck, and trunk, they can also be found throughout the digestive system and especially in the oral cavity. Herein, the fourth case of a rectal angioleiomyoma in the English literature is reported and the clinicopathological features of digestive system angioleiomyomas were investigated. In contrast to their soft tissue counterparts, digestive system angioleiomyomas mainly affect males at a slightly younger age. Angioleiomyomas are mainly asymptomatic and only rarely elicit pain. Clinicians consider angioleiomyomas infrequently and instead include more common soft tissue or epithelial tumors in their differential diagnosis. To prevent angiomyolipoma misdiagnosis, pathologists should exercise caution when examining an angioleiomyoma composed of adipose tissue, smooth muscle, and blood vessels. Pathologists, radiologists, and surgeons should be aware that angioleiomyomas can occur in the digestive system.
Abstract
Angioleiomyomas are benign soft tissue tumors originating from the vascular wall. Although angioleiomyomas mainly occur in extremities, followed by head, neck, and trunk, they can also be found throughout the digestive system and especially in the oral cavity. Herein, the fourth case of a rectal angioleiomyoma in the English literature is reported and the clinicopathological features of digestive system angioleiomyomas were investigated. In contrast to their soft tissue counterparts, digestive system angioleiomyomas mainly affect males at a slightly younger age. Angioleiomyomas are mainly asymptomatic and only rarely elicit pain. Clinicians consider angioleiomyomas infrequently and instead include more common soft tissue or epithelial tumors in their differential diagnosis. To prevent angiomyolipoma misdiagnosis, pathologists should exercise caution when examining an angioleiomyoma composed of adipose tissue, smooth muscle, and blood vessels. Pathologists, radiologists, and surgeons should be aware that angioleiomyomas can occur in the digestive system.