Definition: 'Solar Cheilitis'
solar cheilitisType: Term
1. mucosal atrophy with drying, crusting, and fissuring of the vermilion border of the lower lip in older fair-skinned individuals, resulting from chronic exposure to sunlight; dysplastic (premalignant) changes are noted microscopically, analogous to solar keratosis.
Synonyms: actinic cheilitis
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