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Pemphigus vulgaris — Clinical Guidelines

Overview

Pemphigus vulgaris is an autoimmune blistering disease characterized by loss of cell-to-cell adhesion due to autoantibodies against desmogleins, leading to flaccid bullae and erosions primarily in mucous membranes and skin. 1 4

Diagnosis

Clinical Presentation: Characteristic flaccid bullae and erosions.

Endoscopy: Essential for detecting oesophageal involvement, found in up to 87.5% of cases 1.

Biopsy and Direct Immunofluorescence: Confirm diagnosis by identifying acantholysis and intercellular IgG deposition 6.

Serological Tests: Detect circulating autoantibodies against desmogleins (not detailed in abstracts).

Management

First-Line Treatment: High-dose corticosteroids (specific doses not provided in abstracts).

Adjunctive Therapy: Immunosuppressive agents such as cyclophosphamide, azathioprine, or mycophenolate mofetil to reduce steroid dependency 1.

Monitoring: Regular assessment for complications including oesophageal involvement and ocular manifestations 6.

Special Populations

Pregnancy: Favorable fetal outcomes possible with careful management; case reports suggest cautious therapeutic approaches are effective 3.

Comorbidities: Gastroesophageal reflux may precipitate esophageal involvement in pemphigus vulgaris 4.

Key Recommendations

Perform endoscopy to screen for oesophageal involvement in pemphigus vulgaris patients due to high prevalence 1 (Evidence: Moderate).

Initiate treatment with high-dose corticosteroids and consider adjunctive immunosuppressive therapy to manage disease severity 1 (Evidence: Moderate).

Monitor pregnant women with pemphigus vulgaris closely for optimal maternal and fetal outcomes 3 (Evidence: Weak).

References

1 Gomi H, Akiyama M, Yakabi K, Nakamura T, Matsuo I. Oesophageal involvement in pemphigus vulgaris. Lancet (London, England) 1999. link04708-X) 2 Young R, Jolley D, Marks R. Comparison of the use of standardized diagnostic criteria and intuitive clinical diagnosis in the diagnosis of common viral warts (verrucae vulgaris). Archives of dermatology 1998. link 3 Kanwar AJ, Kaur S, Abraham A, Nanda A. Pemphigus in pregnancy. American journal of obstetrics and gynecology 1989. link90769-2) 4 Kamm MA, Brenan JA, Davies DJ, Desmond PV. Pemphigus vulgaris of the esophagus. Journal of clinical gastroenterology 1988. link 5 Fleckman P, Holbrook KA, Dale BA, Sybert VP. Keratinocytes cultured from subjects with ichthyosis vulgaris are phenotypically abnormal. The Journal of investigative dermatology 1987. link 6 Bean SF, Halubar K, Gillett RB. Pemphigus involving the eyes. Archives of dermatology 1975. link

Pemphigus vulgaris