Vancomycin-induced linear IgA bullous dermatosis (LABD)-an atypical presentation

Area of Science:

• Dermatology
• Immunodermatology

Background:

• Linear IgA bullous dermatosis (LABD) is a rare autoimmune blistering disease.
• LABD typically presents with vesiculobullous or urticarial lesions.

Observation:

• This report details an unusual case of LABD with an atypical presentation.
• The condition initially manifested with mucosal lesions.
• Subsequently, it evolved into a pattern resembling bullous pemphigoid.

Findings:

• The described presentation is uncommon, with limited cases in existing literature.
• Direct immunofluorescence (DIF) is highlighted as essential for confirming the diagnosis.
• DIF distinguishes LABD from other bullous dermatoses.

Implications:

• This case expands the understanding of LABD's clinical spectrum.
• It underscores the need for considering LABD in patients with unusual mucosal and skin lesion progressions.
• Accurate diagnosis via DIF is critical for appropriate patient management and treatment.