Cutaneous granuloma fissuratum
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Synopsis

Granuloma fissuratum manifests as a flesh-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.
Codes
ICD10CM:L25.9 – Unspecified contact dermatitis, unspecified cause
SNOMEDCT:
27745000 – Granuloma fissuratum
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Differential Diagnosis & Pitfalls
The main differential diagnosis for unilateral cases includes cutaneous malignancies. Benign lesions to be differentiated include keloid, seborrheic keratosis, and chondrodermatitis nodularis helicis.- 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.
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Last Reviewed:05/11/2020
Last Updated:05/11/2020
Last Updated:05/11/2020