KOILONYCHIA
KOILONYCHIA
Spoon-shaped nails (Fig. 32-30). Etiology (more often resulting from local rather than systemic factors): Hereditary and congenital; Plummer–Vinson syndrome (iron- deficiency anemia, dysphagia, and glossitis). Findings: In early stages, nail plate becomes flattened; later, edges become everted upward and nail appears concave.
FIGURE 32-30 • Koilonychia The fingernail plate is concave; no other nails were involved. There were no associated systemic factors.