Fig. 5

Photomicrograph of the lesions in the genetalia of dourine diseased horses (H/E) (a) Testicle - chronic orchitis with absence of spermatogenesis and infiltration of lymphocytes and plasma cells (b) Glans penis - infiltration of lymphocytes, plasma cells and histiocytes (c) Vestibular mucosa - superficial diffuse (large arrow) and deep nodular (small arrow) infiltration of lymphocytes, plasma cells and histiocytes (d) Endometrium - infiltration of lymphocytes