Plummer's nail

Plummer's nail is a clinical sign in which there is onycholysis, or separation of the nail from the nail bed, particularly affecting the ring and little fingers. It occurs in patients with thyrotoxicosis.[1] About 5% of hyperthyroid patients display abnormal nail changes.[2] Plummer's nail is also associated with psoriasis, traumatic injury, and allergic contact dermatitis.[3]

Plummer's nail
Differential diagnosispsoriasis, traumatic injury, and allergic contact dermatitis

The sign is named after Henry Stanley Plummer.

See also

References
  1. Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 978-1-4160-2999-1.
  2. Heymann, Warren R., ed. (2008). "Chapter 8. "Cutaneous Manifestations of Hyperthyroidism" by Clara-Dina Cokonis et al.". Thyroid Disorders with Cutaneous Manifestations. Springer. p. 76.
  3. Heymann, Warren R., ed. (2008). "Chapter 9. "Cutaneous Manifestations of Hypothyroidism" by Sandra Kopp, et al.". Thyroid Disorders with Cutaneous Manifestations. Springer. p. 93.
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