Prurigo Nodularis in Hepatitis C Infection: Result of an Occupational Disease?

Chronic pruritus is a frequent symptom, which also presents in fields other than dermatology. A number of internal diseases can be accompanied by severe chronic pruritus (CP). A new classification for CP was developed in 2007, suggesting three categories according to the clinical presentation of CP and six categories according its aetiology (1). Prurigo nodularis (PN) is a chronic inflammatory skin alteration that is usually caused by severe CP, with secondary development of excoriated and ulcerated papules and nodules being the result of frequent scratching (2). According to the clinical classification described above, PN corresponds to group III (Pruritus with chronic secondary scratch lesions) and, due to its aetiology, PN can be caused by dermatological, systemic, neurological or psychosomatic/somatoform diseases, or may have mixed causes (1). [ABSTRACT FROM AUTHOR]