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Image Number 1416 (Keratoacanthoma)

Nodule,skin coloured

Diagnosis: Keratoacanthoma

Site: Ankle

Sex: M

Age: 48


Description: Hemispherical nodule with central keratin-filled crater.

Submitted by: Nameer Al-Sudany

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Differential Diagnosis

History: Keratoacanthomas often undergo spontaneous resolution within a matter of months. However, some cases may persist longer as with the present case of calssical KA on the foot which has been present for three years. It was removed and sent for histopathological examination which was consistent with KA.

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