actinic keratosis

Noun

 * 1)  A potentially precancerous skin lesion, typically on the upper portion of the head, characterized by discolored, thickened or scaly growths of keratin and caused by repeated exposure to ultraviolet light, such as from sunlight or tanning beds.

Translations

 * Arabic: تقران سفعي/تقرن سفعي
 * Chinese:
 * Mandarin: 光線性角化病
 * Dutch: actinische keratose, zonlichtbeschadiging
 * Finnish: aktiininen keratoosi
 * Portuguese: ceratose actínica
 * Thai:
 * Vietnamese: dày sừng ánh sáng