Lymphosarcoma in an Infant Northern Fur Seal 'Callorhinus ursinus'

• Main Authors: Stedham, Michael A, Casey, Harold W, Keyes, Mark C
• Other Authors: ARMED FORCES INST OF PATHOLOGY WASHINGTON DC
• Format: Text
• Language: English
• Published: 1977
• Subjects: Anatomy and Physiology; *NEOPLASMS; AUTOPSY; ELECTRON MICROSCOPY; LYMPHOCYTES; REPRINTS; SEALS(STOPPERS); VIRUSES; CALLORHINUS URSINUS; Alaska; Callorhinus ursinus; Northern fur seal
• Online Access: http://www.dtic.mil/docs/citations/ADA041770; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA041770

An infant northern fur seal (Callhorinus ursinus) died in a rookery on St. Paul Island, Pribilof Islands, Alaska. Grossly, slight enlargement of the mesenteric lymph nodes was seen. Microscopically, a lymphosarcoma composed of sheets of monomorphic lymphoid cells in sections of lymph node and tonsil was seen. Electron microscopy of formalin-fixed tissues revealed several structures that were possibly of viral origin in the cytoplasm of the neoplastic cells. Pub. in Jnl. of Wildlife Diseases, v13 p176-179, Apr 1977.