Milia within resolving bullous pemphigoid lesions

Area of Science:

• Dermatology
• Immunodermatology
• Autoimmune Blistering Diseases

Background:

• Bullous pemphigoid (BP) is an autoimmune blistering skin disease.
• It results from an immune response targeting hemidesmosomal proteins BP180 and BP230.
• Diagnosis involves clinical presentation, histopathology, and serological tests like immunosorbent assays.

Observation:

• A rare case of an 80-year-old male patient diagnosed with bullous pemphigoid is presented.
• The patient exhibited milia, small white cysts, within the areas of resolving bullous pemphigoid lesions.
• This phenomenon was observed during the recovery phase of the disease.

Findings:

• Milia formation is an uncommon finding in bullous pemphigoid recovery.
• While frequently seen in mucous membrane pemphigoid and epidermolysis bullosa acquisita, its occurrence in BP is rarely documented.
• This case highlights an unusual clinical manifestation during bullous pemphigoid healing.

Implications:

• The occurrence of milia in BP may indicate specific healing patterns or patient responses.
• Further research is needed to understand the mechanisms behind milia formation in bullous pemphigoid.
• Clinicians should be aware of this rare presentation during BP patient management.