[Ultrasonographic findings in a cow with extraskeletal chondroblastic osteosarcoma of the neck region].
This case report describes the clinical, ultrasonographic and pathological findings in a five-year-old Swiss Braunvieh cow with extraskeletal chondroblastic osteosarcoma of the neck region. The cow was referred because of a firm, non-painful swelling, approximately 25 cm in diameter, which was situated mainly on the lower left side of the neck but extended to the right. Ultrasonographic examination of the mass revealed a chambered structure containing echoic material that was separated by hyperechoic septa. Chondroblastic osteosarcoma was diagnosed based on histological evaluation of a biopsy sample, and the diagnosis was confirmed by postmortem examination.
Braun
U
U
Klinik für Wiederkäuer der Universität Zürich. ubraun@vetclinics.uzh.ch
Sydler
T
T
Irmer
M
M
Gautschi
A
A
Kamber
R
R
Gerspach
C
C
Puorger
M
M
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D017809:Fatal Outcome; D005260:Female; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*; D014463:Ultrasonography