Histopathological section of bitch uterus (A) showing cystic endometrial hyperplasia (CEH) appeared as papillary growth complex with pyometra (red arrow), also extensive inflammatory reaction seen in the endometrial stroma (yellow arrow) (B) showing sloughing of epithelial cells (red arrow), the epithelial cells appear large foamy cytoplasm (black arrow) (H & E, 400X).