There are a number of men who suffer from abnormal tissue growth in the breasts, also known as gynecomastia or man boobs. (compressioncarl.com)
FeLV - B occurs in about half of infected cats, and it causes tumors and other abnormal tissue growth. (catster.com)
They emphasize that although abnormal tissue growth in endometriosis often spreads throughout the abdominal cavity, the tissue rarely becomes cancerous except in a few cases when ovaries are involved. (sciencedaily.com)