Related Experiment Video
Updated: Sep 2, 2026

A Patient-Derived Xenograft Model for Venous Malformation
Published on: June 15, 2020
[Cutaneous vascular hamartoma in a foal]
D Schönbächler1, L Schurna1, A Fürst1
1Universität Zürich, Vetsuisse-Fakultät, Klinik für Pferdechirurgie, Zürich, Schweiz.
Introduction:
Vascular hamartomas are rare malformations in foals that typically present as painless masses of the skin or subcutaneous tissue. This case report describes a newborn foal with a vascular mass over the right shoulder. Complete surgical excision was performed at seven days of age. Histologically, the lesion was found to be a well-defined dermal vascular proliferation consistent with a vascular hamartoma. The healing process was uneventful, and no recurrence occurred six months postoperatively. This case adds a rare location on the scapula to the literature and confirms surgical removal as an effective treatment option.

