Chondrodermatitis nodularis chronica helicis

Causes

The cause of CNCH is unknown. Nonetheless, a number of variables are thought to be involved in the development of CNCH, with the onset being associated with microtrauma, prolonged high pressure, or dermal ischemia.

Risk factors

Elastic tissue loss, vascular and connective tissue degradation, and skin and cartilage thinning are all brought on by aging. The onset of CNCH symptoms may be related to the cartilage's increased susceptibility to pressure damage as it ages and loses some of its flexibility. Additionally, older adults typically move less while they sleep, which puts even more pressure on the ear.

Epidemiology

Chondrodermatitis nodularis chronica helicis is relatively rare, but it prefers fair-skinned men between the ages of 40 and 80. Despite the fact that women are affected by CNCH, the reported male to female ratio is 10 to 1. CNCH usually affects one side of the body, although reports of bilateral lesions have indicated an incidence of 3% to 7%. After developing CNCH on the contralateral ear, patients who switch their sleeping side typically develop bilateral lesions. Furthermore, CNCH can affect people of any age; cases involving children and teenagers have been documented.

References

References

1. (2003). "Fitzpatrick's Dermatology in General Medicine.". McGraw-Hill, Medical Pub. Division.
2. (2005). "Andrews' Diseases of the Skin: Clinical Dermatology". Saunders.
3. (March 2018). "Review of the Etiopathogenesis and Management Options of Chondrodermatitis Nodularis Chronica Helicis". Cureus.
4. (2016-01-27). "Therapeutic Options of Chondrodermatitis Nodularis Helicis". Plastic Surgery International.
5. (2009). "Chondrodermatitis nodularis". Elsevier BV.
6. Dreiman, Bernard B.. (2007). "Chondrodermatitis Nodularis Chronica Helicis Treated With Antia-Buch Reconstruction: Review and Case Report". Elsevier BV.
7. (May 24, 2007). "Management of chondrodermatitis nodularis chronica helicis using a 'doughnut pillow'". Cambridge University Press (CUP).
8. (December 7, 2012). "Chondrodermatitis nodularis chronica helicis excision and reconstruction". Cambridge University Press (CUP).
9. (2003). "Bilateral chondrodermatitis nodularis chronica helicis on the free border of the helix in a woman". Elsevier BV.
10. (2002). "Treatment of chondrodermatitis nodularis with removal of the underlying cartilage alone: retrospective analysis of experience in 37 lesions". Cambridge University Press (CUP).