myoblastoma

noun
myo·​blas·​to·​ma | \ ˌmī-ə-(ˌ)blas-ˈtō-mə How to pronounce myoblastoma (audio) \
plural myoblastomas also myoblastomata\ -​mət-​ə How to pronounce myoblastomata (audio) \

Medical Definition of myoblastoma

: a tumor that is composed of cells resembling primitive myoblasts and is associated with striated muscle