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SynopsisCodesLook ForDiagnostic PearlsDifferential Diagnosis & PitfallsBest TestsManagement PearlsTherapyDrug Reaction DataReferences

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Gout - Nail and Distal Digit
See also in: Overview,Cellulitis DDx
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Gout - Nail and Distal Digit

See also in: Overview,Cellulitis DDx
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Contributors: Shari Lipner MD, PhD, Belinda Tan MD, PhD, Susan Burgin MD, Bertrand Richert MD, Robert Baran MD
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Synopsis

Gout : Ankle pain, Foot pain, Hyperuricemia, Joint swelling, Joint tenderness, Smooth nodule, Toe pain
Gout is a metabolic disease of hyperuricemia in which crystals of monosodium urate are deposited in tissues. When deposited cutaneously, they are called tophi. Common locations of tophi include acral joints, extensor surfaces, and the helix of the ear. Less commonly, they can involve the finger pads and nails. Gouty tophi in the nail matrix or nail bed may cause onychodystrophy including longitudinal ridging and grooves in the nail plate. Hyperkeratotic lesions mimicking squamous cell carcinomas have also been reported. It is rare for tophi to involve the nails without evidence of additional tophi in more classic locations.

Codes

ICD10CM:
M10.9 – Gout, unspecified

SNOMEDCT:
90560007 – Gout

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

A yellow papule of the nail apparatus may also represent:

Best Tests

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Management Pearls

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Therapy

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Drug Reaction Data

Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.

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References

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Last Reviewed:04/20/2017
Last Updated:10/26/2017
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Gout - Nail and Distal Digit
See also in: Overview,Cellulitis DDx
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A medical illustration showing key findings of Gout : Ankle pain, Foot pain, Hyperuricemia, Joint swelling, Joint tenderness, Smooth nodule, Toe pain
Clinical image of Gout - imageId=48739. Click to open in gallery. caption: 'Erythematous nodule over the lateral distal interphalangeal joint.'
Erythematous nodule over the lateral distal interphalangeal joint.

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