Synonym for tinea versicolor ... A common chronic, noninflammatory and usually symptomless disorder, characterised by the occurrence of multiple macular patches of all sizes and shapes, and varying in pigmentation from fawn-coloured to brown. It is seen most frequently in hot, humid, tropical regions, and is caused by pityrosporon orbiculare. ... (... Found on http://www.encyclo.co.uk/local/20973