Internal medicine on Instagram: “Psoriatic nails Showing onycholysis and discoloration, with typical pitting and ridging.”

- “Bitot spot: focal area of conjunctival xerosis with a foamy appearance due to severe vitamin A deficiency.”

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- “Sclerodactyly: Thickening and induration of the skin over the fingers and wrists is characteristic of scleroderma.”

- “Psoriatic arthritis with distal joint involvement in the third and fifth digits (arrow). Onycholysis is also seen in most of the fingernails.”

- “Janeway lesions are macular, erythematous, nontender microabscesses in the dermis of the palms and soles caused by septic emboli that are considered…”

- “Terry nails Patients with cirrhosis may have a finding known as Terry nails. In patients with Terry nails, the proximal two-thirds of the nail plate…”

- “Characteristic periungual desquamation of the hands and feet seen in Kawasaki disease Skin peeling usually begins under the nails during the second week…”