Click on images for larger views. Moderate numbers of cardiac myocytes contain large vacuoles. Case 15-1 .
Muscle fibers have cytoplasmic vacuolation.
Case 15-2 . The submucosa is heavily infiltrated by pleomorphic epithelial cells. Case 15-2 . 2x obj Case 15-3 . Hyperplastic zone is 3-4x as thick as adjacent normal mucosa.