Open Access Articles- Top Results for Koilonychia


Classification and external resources
ICD-10 L60.3, Q84.6
ICD-9 703.8, 757.5
DiseasesDB 7207
MedlinePlus 003247
NCI Koilonychia
Patient UK Koilonychia

Koilonychia (from the Greek: koilos-, hollow, onikh-, nail), also known as spoon nails,[1]:782 is a nail disease that can be a sign of hypochromic anemia, especially iron-deficiency anemia.[2]:656[3] " It refers to abnormally thin nails (usually of the hand) which have lost their convexity, becoming flat or even concave in shape. In a sense, koilonychia is the opposite of nail clubbing.

Koilonychia is associated with Plummer-Vinson syndrome and iron deficiency anemia.

See also


  1. ^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.
  2. ^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.
  3. ^ Kumar, Robbins and Cotran: Pathologic Basis of Disease, 7th ed., 2005. Saunders.

External links


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