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Asymptomatic Left Ventricular Malignant Psammomatous Melanotic Schwannoma
Charles Laurin1, Joel Claveau2, Sylvain Trahan3
1Cardiac Surgery Department, Quebec Heart and Lung Institute, Laval University, Quebec City, Quebec, Canada.
Abstract:
Malignant psammomatous melanotic schwannoma (MPMS) is a rare type of tumour, occasionally reported to occur with mediastinal involvement. Histopathologic similarities with melanoma may lead to a wrong diagnosis, but distinguishing between types of tumours is mandatory for adequate management and prognosis. MPMS may be aggressive and manifest unpredictable behavior, with a poor midterm prognosis despite benign histopathologic features. We discuss the challenges that come with a diagnosis of MPMS, and the rationale for our treatment strategy, in this first report regarding MPMS involving the left heart ventricle.
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