A report of mesothelial/monocytic incidental cardiac excrescences and a literature review.
We report the case of a rare cardiac lesion, mesothelial/monocytic incidental cardiac excrescences, and also provide a review of the literature. Diagnosis of this entity was based on both its unique morphologic features and imunohistochemical stains. Cytokeratin positivity confirmed the epithelial component, mesothelial cells, in the lesion. Positive staining of CD68 in the monocytic-appearing cells revealed the histiocytic nature of the second component of this lesion. Differential diagnoses are discussed. This report emphasizes the diagnostic dilemma encountered with this unusual entity and the possibility of misdiagnosing the epithelial portion as a metastatic lesion or vice versa.
Wu
M
M
Department of Pathology at Long Island Jewish Medical Center, Long Island Campus for the Albert Einstein College of Medicine, NY, USA.
Anderson
A
A
Kahn
L B
LB
D000368:Aged; D015703:Antigens, CD / Q000378:metabolism; D015214:Antigens, Differentiation, Myelomonocytic / Q000378:metabolism; D004848:Epithelium / Q000378:metabolism / Q000473:pathology; D006331:Heart Diseases / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D007633:Keratins / Q000378:metabolism; D008297:Male; D009000:Monocytes / Q000378:metabolism / Q000473:pathology*; D009206:Myocardium / Q000378:metabolism / Q000473:pathology*; D000097382:CD68 Molecule
D015703:Antigens, CD; D015214:Antigens, Differentiation, Myelomonocytic; D007633:Keratins; C067980:CD68 antigen, human; D000097382:CD68 Molecule