Fig. 1From: First confirmation by PCR of Jaagsiekte sheep retrovirus in Ireland and prevalence of ovine pulmonary adenocarcinoma in adult sheep at slaughter a Set of lungs with ovine pulmonary adenocarcinoma [OPA], with lesions consistent with those of classical OPA. Bilateral, extensive, ventral areas of greyish discolouration, b OPA-positive lung tissue as seen on cut surface. Area of normal lung (salmon-pink) on the left. Area of OPA (grey-tan, fatty, consolidated) to the rightBack to article page