Tags: Disease.
Knuckle pads (also known as Heloderma meaning similar to the skin of the Gila monster lizard for which it is named) are circumscribed keratotic fibrous growths over the dorsa of the interphalangeal joints. Knuckle pads are well-defined round plaque-like fibrous thickening that may develop at any age and grow to be 10 to 15mm in diameter in the course of a few weeks or months then persist permanently.