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Histological Classification of Ocular and Otic Tumors of Domestic Animals

1 Tumors of the Eyelids and Conjunctiva
1.1 Tumors of the haired eyelid
1.1.1 Meibomian adenoma
1.1.2 Melanocytic tumors
1.1.2.1 Melanocytoma
1.1.2.2 Malignant melanoma
1.1.3 Squamous cell carcinoma
1.1.4 Squamous papilloma
1.1.5 Chalazion
1.1.6 Miscellaneous tumors
 
1.2 Tumors of the third eyelid and conjunctiva
1.2.1 Squamous cell carcinoma
1.2.2 Conjunctival malignant melanoma
1.2.3 Vascular tumors
1.2.3.1 Hemangioma
1.2.3.2 Angiokeratoma
1.2.3.3 Hemangiosarcoma
1.2.4 Adenocarcinoma of the gland of the third eyelid
1.2.5 Lymphoma (malignant lymphoma)
1.2.6 Nodular granulomatous episcleritis (nodular fasciitis)
1.2.7 Miscellaneous tumors and proliferative lesions
1.2.7.1 Conjunctival inclusion cyst
1.2.7.2 Mast cell tumor

2 Intraocular Tumors
2.1 Melanocytic tumors
2.1.1 Canine anterior uveal melanocytoma
2.1.2 Limbal melanocytoma
2.1.3 Canine choroidal melanocytoma
2.1.4 Canine diffuse uveal melanosis
2.1.5 Feline diffuse iris melanoma
2.1.6 Feline multifocal uveal melanocytoma
2.1.7 Intraocular melanocytic tumors in noncarnivores
2.2 Iridociliary epithelial tumors
2.2.1 Iridociliary adenoma
2.2.2 Iridociliary adenocarcinoma
2.3 Medulloepithelioma
2.4 Iridociliary cysts
2.5 Feline primary ocular sarcoma (post-traumatic sarcoma)
2.6 Iridal spindle cell tumor of blue-eyed dogs
2.7 Optic nerve glioma
2.8 Metastatic tumors

3 Tumors of he Orbit
3.1 Retrobulbar spindle cell tumors
3.1.1 Canine orbital meningioma
3.1.2 Others
3.2 Lacrimal gland tumors
3.2.1 Lacrimal adenoma
3.2.2 Lacrimal adenocarcinoma
3.3 Multilobular tumor of bone (multilobular osteoma, multi-lobular osteochondroma, multilobular osteochondrosarcoma, chondroma rodens)
3.4 Neural and neuroendocrine tumors
3.5 Secondary tumors

Histological Classification of Otic Tumors of Domestic Animals
 
1 Tumors of the External Ear Canal
1.1 Ceruminous tumors
1.1.1 Ceruminous adenoma
1.1.2 Ceruminous adenocarcinoma
2 Tumors of the Middle and Inner Ear
2.1 Squamous cell carcinoma of the tympanic bulla
2.2 Tympanic adenocarcinoma
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