Pemphigus vulgaris - Anogenital in
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Synopsis
The estimated incidence of PV worldwide is 0.76-5 cases per million per year, although it occurs in higher incidences in individuals of Jewish ancestry as well as in certain geographic areas (Middle East, Southeastern Europe, and India). Variants of the ST18 gene have been found to confer increased risk of PV in some populations. PV is typically a disease of adults, with average onset between the ages of 40 and 60 years, but PV rarely can occur in childhood and young adulthood. The mean age of onset for male anogenital pemphigus ranges from 32-67 years of age.
Almost all patients with PV develop painful erosions on the oral mucosa, and individuals with the mucocutaneous type develop flaccid bullae, erosions, and crusted erosions / plaques on the skin. Before the introduction of systemic corticosteroids, the mortality of PV was 75%. Still, severe cases of PV can be life-threatening, and complications can be related to immunosuppression from drugs used to treat severe PV, secondary infections, loss of the skin barrier, and poor oral intake.
Oral mucosal involvement is more common than genital involvement. The larynx, esophagus, conjunctiva, nasopharynx, and urethra can be involved rarely. The presence of genital lesions in men has only been described in a few case reports and small case series. It is less commonly observed than anogenital involvement in women. In rare cases, penile erosions can be the first manifestation of PV, followed by classic mucocutaneous findings. Lesions may be seen on the glans, shaft, and anus, as well as other mucosal sites.
Codes
L10.0 – Pemphigus vulgaris
SNOMEDCT:
49420001 – Pemphigus vulgaris
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Last Updated:01/10/2022
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