Erratum: The malignant transformation of retrorectal cystic hamartomas with blood irregular antibodies positive: A case report: Erratum Urachal adenocarcinoma that metastasized to breast was misinterpreted as primary breast mucinous carcinoma: A rare case report and literature review: Erratum.

[This corrects the article DOI: 10.1097/MD.0000000000002253.][This corrects the article DOI: 10.1097/MD.0000000000004612.].

In the articles “The malignant transformation of retrorectal cystic hamartomas with blood irregular antibodies positive: A case report”[ and “Urachal adenocarcinoma that metastasized to breast was misinterpreted as primary breast mucinous carcinoma: A rare case report and literature review”,[ which appeared in Volume 94, Issue 49 and Volume 95, Issue 35, respectively, of Medicine, a university affiliation was originally given incorrectly. Jinan University should have been reported as University of Jinan in both articles.