A 13-yr-old male Alpaca (Lama pacos) presented with multiple ovoid, well-circumscribed, nonulcerated intradermal masses. Individual masses measured 1–4 cm in diameter, and the overlying skin was alopecic. Several of the masses were surgically removed and evaluated microscopically. Histopathologic evaluation demonstrated multiple dermal cysts lined by neoplastic follicular epithelium. The cysts were filled with multiple layers of lamellar keratin and lined by abortive inner and outer root sheaths exhibiting cellular atypia, supporting the diagnosis of trichoepitheliomas. No additional treatment was initiated, and the alpaca continues to do well.
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1 December 2005
MULTIPLE TRICHOEPITHELIOMAS IN AN ALPACA (LAMA PACOS)
WmKirk Suedmeyer,
Fred Williams
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Journal of Zoo and Wildlife Medicine
Vol. 36 • No. 4
December 2005
Vol. 36 • No. 4
December 2005
Alpaca (Lama pacos)
trichoepitheliomas
tumor