Merck Manual

Please confirm that you are a health care professional

Epitheliotropic cutaneous lymphosarcoma (mycosis fungoides), 8-yr-old male Pit Bull
Epitheliotropic cutaneous lymphosarcoma (mycosis fungoides), 8-yr-old male Pit Bull

Infiltration by malignant lymphocytes caused a firm swelling of the lips and adnexa on the left side of this dog's face, causing salivation, odor, and discomfort. This case was aggressive, fulminant, and resistant to treatment.

Courtesy of Dr. Alice Villalobos.