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Diagnosis: Keratoacanthoma
Description: Nodule with keratinous plug.
Morphology: Nodule
Site: Hand,dorsum
Sex: M
Age: 80
Type: Clinical
Submitted By: Nameer Al-Sudany
Differential DiagnosisHistory:
Three months history of relatively rapidly evolving skin-colored to pinkish dome-shaped solitary nodule with a central crater filled with keratin on the dorsum of the hand.