Primary Extragastrointestinal Stromal Tumor of the Dorsolateral Anorectum Resected via a Posterior Approach: A Case Report. - Hasegawa M; Sakamoto W; Shakespear N; Yago H; Sato T; Ito M; Matsumoto T; Ujiie D; Chida S; Okayama H; Saito M; Momma T; et al. (Surgical case reports, 2025)