Extra-nodal follicular lymphoma in the lung of a free-ranging red deer (Cervus elaphus)

CHANG REISSIG E.; VALLI V.E.; PESAVENTO P.; MASSONE A.; IOVANITTI B.; GIMENO E.J.; UZAL F.A.

JOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION

AMER ASSOC VETERINARY LABORATORY DIAGNOSTICIANS INC

Año: 2013 vol. 25 p. 158 - 161

1040-6387

A hunted free-range female red deer (Cervus elaphus) from a region near the Nahuel Huapi National Park, Northern Patagonia, Argentina, had a focally extensive peribronchial lymphoid proliferative lesion in the lung characterized by multiple follicles lacking mantle zone cells. On examination of immunohistochemically stained tissues a predominance of B-cells (CD 20 positive) with only a few scattered T-cells (CD3 positive) were present. The histologic and immunohistochemical characteristics are consistent with follicular lymphoma, which is frequently seen in humans and less frequently in domestic animals. This appears to be the first report of follicular lymphoma in a deer.