Experimental Organism Intramural Schwannoma

**Semantic type:** Neoplastic Process

**Definition:** A malignant schwannoma of the heart of the heart arising from intramural swan cells that appears as a poorly circumscribed spindle cell mass within the ventricular myocardium with a more discrete boundary, that is generally more infiltrative than expansile. (INHAND)

**Synonyms:** - SCHWANNOMA, INTRAMURAL, MALIGNANT