AUTHOR=Liu Wenhan , Wen Xianxiong , Hu Dongping , Ma Hong TITLE=Perirectal angioleiomyoma preoperatively misdiagnosed as rectal cancer: a case report JOURNAL=Frontiers in Oncology VOLUME=Volume 14 - 2024 YEAR=2024 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1476084 DOI=10.3389/fonc.2024.1476084 ISSN=2234-943X ABSTRACT=Angioleiomyoma (ALM) is a rare benign perivascular (pericytic) tumor primarily composed of well-differentiated smooth muscle and vascular components. Its clinical and radiological features lack specificity, making diagnosis challenging and prone to misdiagnosis. This report summarizes the clinical data of a patient treated at our hospital who was preoperatively misdiagnosed with rectal cancer but was subsequently found to have perirectal ALM. Additionally, a review of the relevant literature is provided.