By Gary M. White, MD
Comedones or blackheads of acne commonly occur in the ears. A topical retinoid e.g. adapalene or tretinoin is usually given.
Subepidermal Calcified Nodule
Otophyma is enlargement of the ear representing the end-stage of an inflammatory process such as rosacea and eczema. For a picture, see Dermatology Online Journal 21(3)
Basal Cell Carcinoma (BCC). Ear BCCs on average, present as larger lesions, required more Mohs layers and produced a larger final defect than non-ear lesions [JAAD May 2014].
Squamous Cell Carcinoma
Chondrodermatitis Nodularis Helicis (CNH). The "ear corn," or CNH, is a painful spot on a prominent part of the cartilage of the ear. It forms in older adults from chronic pressure on the pillow. Questions to ask: "Does it hurt when you sleep?" "Do you sleep on that side?"
Weathering Nodules. Common on the ears of older men. Entirely benign.
Acanthoma Fissuratum. A fissure on the back of the ear from where the glasses sit. Entirely benign.
The Pseudocyst is most common in children and young adults. May need to be drained.
Angiolymphoid Hyperplasia With Eosinophilia
Epidermal Inclusion Cyst
Lepromatous Leprosy. The ears may be enlarged with a typical shiny and thickened appearance. Nodules may be present. The ears may be cooler and anesthetic.
Cellulitis. Here from MRSA.
Allergic Contact Dermatitis to nickel is common on the ear.
Cutaneous Lupus Erythematosus. The inner aspect of the pinna is a favorite location for the red, scaly, scarring lesions of cutaneous lupus erythematosus.
Ramsay Hunt Syndrome. Herpes zoster of the ear.
Juvenile Spring Eruption. Sun-induced rash of the ears in children.
Cold Agglutinin Disease. The ears become red and inflamed after exposure to the cold.
Nevi and clinically atypical nevi. This clinically atypical nevus was benign on biopsy.
Gout. Gouty tophus of the ear before and after biopsy.
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