Cytologic Diagnosis of Heterobilharzia americana Infection in a Liver Aspirate From a Dog.
Heterobilharzia americanais a trematode of the Schistosomatidae family that infects dogs, raccoons, and other mammals as definitive hosts. This parasite is considered endemic in the southern Atlantic and Gulf coasts; however, only a few cases are reported. A 7-year-old dog from Louisiana was referred for persistent hypercalcemia, hyperglobulinemia, and weight loss. Abdominal ultrasound revealed diffuse hyperechogenicity of the liver with several hyperechoic nodules of varying size. Cytologic examination of fine-needle aspirates of the liver revealed few ovoid to round basophilic thin-walled eggshell fragments and rare ciliated miracidia.H. americanaeggs were identified on fecal sedimentation.
Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA vivianaledonne0@gmail.com.
V
V
Le Donne
Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA.
D A
DA
McGovern
Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA.
J M
JM
Fletcher
Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA.
B J
BJ
Grasperge
D000818:Animals; D044963:Biopsy, Fine-Needle / Q000662:veterinary; D004283:Dog Diseases / Q000175:diagnosis* / Q000469:parasitology / Q000473:pathology; D004285:Dogs; D005243:Feces / Q000469:parasitology; D008099:Liver / Q000469:parasitology / Q000473:pathology; D008297:Male; D012551:Schistosomatidae / Q000166:cytology / Q000302:isolation & purification*; D014201:Trematode Infections / Q000175:diagnosis / Q000469:parasitology / Q000473:pathology / Q000662:veterinary*
Heterobilharzia americana; cytology; dog; hypercalcemia; liver; miracidium; schistosomiasis; trematoda