title: Spontaneous cardiac tumors in eight rats.
abstract: Spontaneous cardiac neoplasms were diagnosed in one Sprague-Dawley and seven Fischer 344 rats ranging in age from eight months to two years. All eight neoplasms were diagnosed as neurilemmomas. One neoplasm was composed of dense Antoni type A tissue with Verocay body formation, while seven others were composed principally of loose Antoni type B tissue. No specific site predilection was found.
mesh_terms: D000818:Animals; D005260:Female; D006325:Heart Atria; D006338:Heart Neoplasms / Q000378:metabolism / Q000648:ultrastructure / Q000662:veterinary*; D006351:Heart Valves; D006352:Heart Ventricles; D008297:Male; D009442:Neurilemmoma / Q000378:metabolism / Q000648:ultrastructure / Q000662:veterinary*; D051381:Rats; D011916:Rats, Inbred F344; D011919:Rats, Inbred Strains; D012155:Reticulin / Q000096:biosynthesis; D012376:Rodent Diseases / Q000378:metabolism / Q000473:pathology*
chemical_list: D012155:Reticulin