nonmelanoma skin carcinoma in situ on the head and neck (not on the eyelid)

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What is nonmelanoma skin carcinoma in situ on the head and neck (not on the eyelid)?

Pronunciation: /nonmelanoma* skɪn ˌkɑrsəˈnoʊmə ɪn situ* ɔn ðə hɛd ənd nɛk nɑt ɔn ðə ˈaɪˌlɪd/

Definition

Abnormal cells are found in the squamous cell or basal cell layer of the epidermis. These abnormal cells may become cancer and spread into nearby normal tissue. Also called stage 0 nonmelanoma skin carcinoma in situ on the head and neck (not on the eyelid).