A Rare Case of Cardiac Melanoma Mimicking Hypertrophic Cardiomyopathy.

A 40-year-old female patient with a remote history of a malignant melanoma treated with curative intent presented with the diagnosis of hypertrophic cardiomyopathy (HCM) made at another hospital. Further diagnostic workup included positron emission tomography/computed tomography, which revealed that the HCM phenotype was produced by cardiac involvement of metastatic melanoma. For this reason, the primary diagnosis of HCM had to be retracted and melanoma-specific antineoplastic treatment was initiated.