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March 2009

A Solitary Nodule on the Finger—Quiz Case

Author Affiliations
 

MICHAEL E.MINGMD, MSCE

 

CARRIE ANN R.CUSACKMDSENAIT W.DYSONMDJACQUELINE M.JUNKINS-HOPKINSMDVINCENTLIUMDKARLA S.ROSENMANMD

Arch Dermatol. 2009;145(3):321-326. doi:10.1001/archdermatol.2008.625-a

A 22-year-old Arabian man presented with a 3- to 4-week history of a painful lesion on his left second finger. The nodule arose 2-weeks after the patient nicked his finger on a knife while slaughtering a lamb during Eid al-Adha, the annual Islamic Feast of Sacrifice.

Physical examination revealed a 1.5-cm, edematous, erythematous nodule on the dorsal distal interphalangeal joint of the left second finger (Figure 1). There was a central overlying yellow crust with associated black dots. There was no lymphangitis or lymphadenopathy, nor were there any additional cutaneous findings. A biopsy specimen was obtained (Figure 2 and Figure 3).

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