White Spots
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
White spots are atrophic perifollicular skin lesions that appear as a result of chronic inflammation of the sebaceous glands. They are primarily located on the trunk, are slightly elevated or level with normal skin, and show histological changes around hair follicules including reduction or disappearance of elastic tissue and irregular distribution of collagen fibers.
Encyclopedia entry (1928–1936)
White spots, atrophic perifollicular spots of the skin, appearing as a result of chronic inflammation of the sebaceous glands. White spots are localized, predominantly, on the trunk; arranged focally, they slightly rise above the normal skin or lie at the same level; usually white spots are round or oval in shape, the size from a pinhead to a lentil; on their slightly wrinkled surface there are 1-2 dilated follicular openings, sometimes plugged with an acne plug. Clinically, white spots differ from scars after ordinary acne, mainly by the absence of retraction. The main histological changes are located around the hair follicles: reduction or disappearance of elastic tissue and irregular distribution of collagen fibers come to the fore.
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“White Spots.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/white-spots/