[Soft tissue calcifications of distal phalangeal tuberosities of the fingers]

Soft tissue calcification at the margin of the tuberosity of the distal phalanges of the fingers occurs in 7% of normal adults, varying between 0 and 14.5%, depending on age and sex. This type of calcification is least common in the little finger. The fingers on the right are more frequently affected than those on the left. Presumably this calcification results from mechanical injury ot the collagen fibres close to their insertion into the margin of the tuberosity.