Chondrodermatitis nodularis chronica helicis is a small, nodular, tender, chronic inflammatory

lesion A lesion is any damage or abnormal change in the tissue of an organism, usually caused by disease or trauma. ''Lesion'' is derived from the Latin "injury". Lesions may occur in plants as well as animals. Types There is no designated classif ...

occurring on the

helix A helix () is a shape like a corkscrew or spiral staircase. It is a type of smooth space curve with tangent lines at a constant angle to a fixed axis. Helices are important in biology, as the DNA molecule is formed as two intertwined hel ...

of the ear, most often in men. it often presents as a benign painful

erythematous Erythema (from the Greek , meaning red) is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries. It occurs with any skin injury, infection, or inflammation. Examples of erythema not assoc ...

nodule fixed to the cartilage of the helix or antihelix of the external ear. Although the exact cause of the condition is unknown, it has been linked to head pressure on the ear while sleeping. Treatment options include the use of pressure-relieving devices or, in cases where that is not an option, surgery. File:Histopathology of chondrodermatitis nodularis chronica helicis.jpg, Histopathology, showing an ulceration surrounded by acanthosis and parakeratosis, with absence of atypia.

References

Dermal and subcutaneous growths {{Dermal-growth-stub

See also

References