Myosarcoma is a malignant muscle tumor.

[1] People with myosarcoma often wake up with the feeling as if they had a cramp during their sleep.

[2] Leiomyosarcoma is sarcoma of smooth muscle, and rhabdomyosarcoma is sarcoma of striated muscle.

However, the term myosarcoma itself still appears in the literature.

This article about a neoplasm is a stub.