Cutaneous granuloma fissuratum
Granuloma fissuratum manifests as a skin-colored or pink papule or nodule of rubbery to firm consistency. Auricular lesions commonly exhibit a central furrow or groove corresponding to the area of contact with the glasses' frame.
L25.9 – Unspecified contact dermatitis, unspecified cause
735130003 – Granuloma fissuratum cutis
- Basal cell carcinomas (BCCs) are pearly with overlying telangiectasia. They tend to bleed easily with trauma.
- Squamous cell carcinomas (SCCs) are more hyperkeratotic, often with central crusting rather than a grooved depression.
- Keratoacanthoma typically presents as a solitary, hyperkeratotic, skin-colored or erythematous nodule with central keratotic core. It develops rapidly in contrast to the more indolent granuloma fissuratum.
- Keloid can develop on the ear or periauricularly. Clinically, keloid is a firm, exophytic, smooth nodule in an area of previous trauma.
- Seborrheic keratosis is not uncommon to auricular sulci, and irritation from eyeglass frames may predispose to it.
- Chondrodermatitis nodularis helicis typically involves the helix or antihelix proper; it is a small, firm, and tender papule or nodule.