Ulcerative Lymphangitis

Assistant lecturerThanoon younis yassen

Pigeon Feverulcerative lymphangitis are caused by corynebacterium pseudotuberculosis, The horse is clearly ill with fever and in pain, and the affected limb swells and develops tracts of multiple draining ulcerative lesions along the leg lymphatic vessels.

Thickening of lymph vessels with multiple nodules , in the limbs , mostly lower limbs . Those nodules may turn to ulcers later .

The bursting nodules can discharge pus containing the causative agent

Swelling of affected limb can be noticed as a result of hindrance of lymph flow from the limb .

Swelling of affected limb can be noticed as a result of hindrance of lymph flow from the limb .

Distribution of the

abscesses onthe right

forelimb and shoulder.

pectoral region (swelling

resembles a pigeon’s chest) and along the

ventral midline of the abdomen.

Abscesses contain tan, odor-free

purulent exudate and are usually

well encapsulated.

Corynebacterium-

pseudotuberculosis-on-the-pectoral-

muscles-of-a-horse

Abscesses-draining-on-the-ventrum-of-a-horse-caused-by-

Corynebacterium-

pseudotuberculosis