Dactylitis

Dactylitis
Tuberculosis dactylitis. (Image courtesy of RadsWiki)

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Overview

Dactylytis is a sausage-shaped swelling of the fingers and toes, and can be painful.

The word dactyl comes from the Greek word "daktylos" meaning "finger". In its medical term, it refers to both the fingers and the toes.

Differential diagnosis of causes

Dactylitis can occur in seronegative arthropathies, such as psoriatic arthritis and ankylosing spondylitis, in sickle-cell disease as result of a vasoocclusive crisis with bone infarcts, and in infectious conditions including tuberculosis and leprosy.

In sickle-cell disease it is manifested for the first time between 6-9 month old infants.

Diagnostic Findings

(Images shown below are courtesy of RadsWiki)

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  Tuberculosis dactylitis

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  Normal contralateral hand