title: [Subungual calcification in the normal nail bed of the toes].
abstract: Subungual calcifications in the normal nail bed begin in women during the 3rd decade and obtain an incidence of 47% from the 8th decade. These calcifications appear in men two decades later and obtain in old age an incidence of only 14%. The 1st toe is involved three times as often as the 5th toe. In about 10% the subungual calcifications of the toes are combined with the same subungual calcifications of the digits. Subungual calcifications of the normal nail bed are considered as a normal reaction of ageing, which is not influenced by diseases with a tendency of tissue calcification.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D002113:Calcification, Physiologic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009262:Nails; D011859:Radiography; D014034:Toes / Q000000981:diagnostic imaging / Q000502:physiology*
vernacular_title: Subunguale Verkalkungen im normalen Nagelbett der Zehen.