Squamous and adenocarcinoma

Squamous carcinoma arising from the skin, lids, or, very rarely, conjunctiva contribute approximately 5% of tumours of the external eye.

They can be treated with radiotherapy as already discussed, although more generous margins should be given. Squamous carcinoma can affect the eye by direct spread from adjacent sites such as the maxillary antrum and paranasal sinuses. Sebaceous and lacrimal gland tumours are rare and not particularly radio-sensitive. Primary treatment should be surgery.

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