Eczema in a local form is seen in that condition of the legs known to stablemen as mallenders and sallanders. Here the disease is confined to the flexures or "bends" of the knees and hocks respectively. In the former position it is termed "mallenders", in the latter "sallanders". (Figs. 270, 271.) With rare exceptions this form of the disease is confined to the heavy breeds of horses, and especially to those with fleshy legs, a thick skin, and a profusion of coarse hair. It is essentially hereditary in its nature, and appears to be brought into existence by the excessive use of highly nitrogenous diet, particularly the indiscriminate use of beans. Not unfrequently it is preceded by swelling of the legs following upon a brief respite from work.

Sallanders sometimes ensues upon an attack of acute lymphangitis or mud fever, and is frequently found to be associated with chronic enlargement of the limbs.