Thyroid acropachy - Nail and Distal Digit
Synopsis

The first, second, and fifth metacarpals, the proximal phalanges of the hand, and the first metatarsal and proximal phalanges of the feet are most commonly affected.
In addition to thyroid acropachy, patients with thyrotoxicosis can develop a characteristic onycholysis in which the free edge of the nail is undulated and curved upward (Plummer nails). The fourth fingernails are initially involved. The nails are fragile, and the nail bed of the toes may be hyperpigmented.
Codes
E05.90 – Thyrotoxicosis, unspecified without thyrotoxic crisis or storm
SNOMEDCT:
237826006 – Thyroid acropachy
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