Massive haematoma formation associated with proximal popliteal artery haemangioendothelioma in a dog.
A mixed breed dog presented with diffuse unilateral hind limb swelling, which ultrasound and cytology confirmed to be caused by severe haematoma formation. Multi-detector computed tomography (MDCT) angiography allowed distinct visualisation of an anomalous segment of the proximal popliteal artery, the presumed origin of the self-sustaining haematoma. Histopathology classified the malformed vessel as a haemangioendothelioma, a neoplasia of intermediate malignancy. Considering this as differential diagnosis to a neoplastic vascular alteration of high malignancy (such as haemangiosarcoma) might alter choice of treatment in future cases with similar clinical and imaging findings.
Vetsuisse Faculty, University of Zürich, CH-8057 Zürich, Switzerland.
D
D
Bass
P
P
Grest
R
R
Hagen
M
M
Makara
S
S
Quante
C
C
Rohrer-Bley
D000792:Angiography / Q000662:veterinary; D000818:Animals; D004283:Dog Diseases / Q000175:diagnosis*; D004285:Dogs; D005260:Female; D006390:Hemangioendothelioma / Q000175:diagnosis / Q000662:veterinary*; D006406:Hematoma / Q000175:diagnosis / Q000662:veterinary*; D011150:Popliteal Artery / Q000002:abnormalities*; D014057:Tomography, X-Ray Computed / Q000662:veterinary