Mesothelial/monocytic incidental cardiac excrescence mimicking cardiac tumor.
Mesothelial incidental cardiac excrescence is a non-neoplastic tumor-like lesion commonly occurring in the intracardiac region. The exact etiology is unclear. A 32-year-old woman presented with respiratory distress on exertion. Echocardiography showed severe aortic, mitral, and tricuspid regurgitation, for which triple-valve replacement was performed. A small cardiac excrescence was found over the aortic valve, measuring 0.6 × 0.3 × 0.3-cm, which on microscopy showed features of mesothelial/monocytic incidental cardiac excrescence. This condition is very rare but it must be recognized because it mimics a metastatic malignancy.
Department of Pathology and Cardiothoracic Surgery, All India Institute of Medical Sciences, New Delhi, India.
Saumyaranjan
S
Mallick
Department of Pathology and Cardiothoracic Surgery, All India Institute of Medical Sciences, New Delhi, India aravaaiims@gmail.com.
Sudheer
S
Arava
Department of Pathology and Cardiothoracic Surgery, All India Institute of Medical Sciences, New Delhi, India.
Subramanian
S
Muthukumaran
Department of Pathology and Cardiothoracic Surgery, All India Institute of Medical Sciences, New Delhi, India.
Bhavna
B
Sharma
Department of Pathology and Cardiothoracic Surgery, All India Institute of Medical Sciences, New Delhi, India.
Shiv Kumar
SK
Choudhary
Department of Pathology and Cardiothoracic Surgery, All India Institute of Medical Sciences, New Delhi, India.
Ruma
R
Ray
D000328:Adult; D015415:Biomarkers / Q000032:analysis; D049109:Cell Proliferation; D003937:Diagnosis, Differential; D005260:Female; D006338:Heart Neoplasms / Q000737:chemistry / Q000473:pathology*; D006349:Heart Valve Diseases / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D019918:Heart Valve Prosthesis Implantation; D006351:Heart Valves / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D006644:Histiocytes / Q000737:chemistry / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D033162:Incidental Findings; D009000:Monocytes / Q000737:chemistry / Q000473:pathology*; D011237:Predictive Value of Tests
D015415:Biomarkers
Aortic valve; Diagnosis; Heart neoplasms; Histiocytes; Immunohistochemistry; Monocytes; differential