Adult intracardiac rhabdomyoma resembling the extracardiac variant.

Rhabdomyomas are benign striated muscle neoplasms that may assume a number of characteristic histologic patterns. These lesions may be classified as cardiac or extracardiac on the basis of their location and histology. We present a case of large intracardiac mass with the morphologic features of an extracardiac rhabdomyoma occurring in an adult female.