title: Dirofilariasis without circulating microfilariae: a problem in diagnosis.
mesh_terms: D000330:Aedes; D000790:Angiocardiography; D000818:Animals; D004184:Dirofilariasis / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000276:immunology / Q000473:pathology / Q000662:veterinary*; D004283:Dog Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000276:immunology / Q000473:pathology; D004285:Dogs; D004562:Electrocardiography; D005260:Female; D005370:Filarioidea / Q000276:immunology / Q000302:isolation & purification; D007303:Insect Vectors; D007814:Larva / Q000276:immunology; D007958:Leukocyte Count; D008168:Lung / Q000473:pathology; D008297:Male