Fig. 2From: Prevalence of Mycobacterium avium subspecies paratuberculosis IS 900 DNA in biopsy tissues from patients with Crohn’s disease: histopathological and molecular comparison with Johne’s disease in Fars province of IranHistopathological lesions of Johne’s disease, a and b Granulomatous ileitis. Infiltration of epithelioid macrophages are seen in the mucosa. c Mixed granulomatous ileitis: Infiltration of epithelioid macrophages, lymphocytes and plasma cells in the mucosa and submucosa of ileum. d Lymphoplasmacytic enteritis. Diffuse infiltration of lymphocytes and plasma cells in the mucosa and submucosa. e Lymphangiectasia. Lymphatic dilation in the mucosa and submucosa. f Lymphangitis (starisk) and lymphocytic neuritis (arrow). H & E, ileum, goatBack to article page