Hamartoma of mature cardiac myocytes is an extremely rare type of benign cardiac tumor with a slow growth rate and generally occurs in adults. We report a case with hamartoma of mature cardiac myocytes of the right auricle demonstrating intense 18F-FDG uptake and a large amount of pericardial effusion on PET/CT mimicking malignancy in a 41-year-old man. Hamartoma of mature cardiac myocytes should be considered among the differential diagnoses when an 18F-FDG-avid primary focal cardiac mass is found in patients with malignant features on PET/CT imaging.
From the PET/CT Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China.
Received for publication April 2, 2019; revision accepted May 5, 2019.
Conflicts of interest and sources of funding: none declared.
Correspondence to: Yunhua Wang, MD, PET/CT Center, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, People’s Republic of China. E-mail: firstname.lastname@example.org.
Online date: July 5, 2019