Gull-wing appearance (phalanges)

The gull-wing appearance (also known as seagull erosions) is seen in erosive osteoarthritis, typically on posteroanterior radiographs. The combination of cartilage space loss, central subchondral erosions, and marginal osteophyte proliferation results in a gull-wing appearance.

Inspired signs
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Article information

rID: 21252
Section: Signs
Synonyms or Alternate Spellings:
  • Gull's wing appearance
  • Gull-wing appearance
  • Seagull erosions (phalanges)
  • Seagull wing appearance
  • Seagull wing sign

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Cases and figures

  • Figure 1: flying seagull
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  •  Case 1
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  • Case 2
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  • Case 3
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