Gastrite eosinofílica esquirrosa em dois cães

Abstract

Scirrhous eosinophilic gastritis (SEG) is characterized by diffuse infiltration of eosinophils and concomitant fibrovascular tissue proliferation in the stomach wall. The condition is a rare occurrence with an unknown cause. Two dogs were examined with a history of progressive weight loss, emesis, melena and anorexia. Complete blood cell counts of both cases revealed anemia and eosinophilia, while ultrasonography examination revealed thickening of the stomach wall. Due to suspected gastric neoplasia and a poor clinical prognosis, the dogs were euthanized. At necropsy, both had markedly distended stomachs with a diffusely thickened and firm wall. The spleens of both dogs were enlarged with a nodular surface. Histological evaluation revealed diffuse infiltrate of eosinophils, fibrovascular tissue proliferation and fibrinoid degeneration in blood vessel walls of stomach and spleen. SEG is a rare pathological condition that must be considered as a possible diagnosis in dogs presenting gastrointestinal signs and eosinophilia.