Four cases of iridociliary tumors in domestic rabbits (Oryctolagus Cuniculus)

Abstract

Spontaneously occurring ocular neoplasia is rarely reported in rabbits. This case series presents four cases of rabbits diagnosed with iridociliary tumors, which have not been previously reported in this species. Major pathological findings include epithelial tumors affecting the anterior uvea with variable pigmentation and basement membrane formation. Follow-up information was only available for two cases, but neither showed evidence of metastasis, suggesting that the prognosis for these tumors in rabbits, as in other species, may be very good.

Iridocorneal angle assessment of companion rabbits using gonioscopy, spectral‐domain optical coherence tomography (Optovue iVue®), high‐resolution ultrasound, and Pentacam® HR imaging

“…Although this is predominantly present in New Zealand white rabbits, this has also been reported in both pigmented and nonpigmented rabbits, including New Zealand white‐cross bred rabbits, a Belgian hare, and a Flemish giant rabbit . Other common causes of glaucoma in clinical practice include secondary glaucoma due to uveitis and neoplasia …”

Pleomorphic iridociliary adenocarcinoma with metastasis to the cervical lymph node in a chinchilla (<i>Chinchilla lanigera</i>)

“…In veterinary medicine, iridociliary tumors are the second most common tumors in dogs after melanocytic tumors. They rarely occurs in cats [2] and have been reported in four cases of adenoma in rabbits [16] and two cases of adenoma in mice in the National Toxicology Program database and in “New Toxicologic Histopathology” [7]. However, they have never been reported in a chinchilla.…”