text: An unusual case of benign mucous membrane pemphigoid.
  This case of benign mucous membrane pemphigoid (BMMP) is unusual in that blistering, scarring lesions were confined to the skin for 15 years before mucous membranes were involved. The onset of this disorder at the age of 38 is also unusual. Detailed immunological investigation was performed on this patient but the results in no way clarify the present confusion regarding the immunopathological processes in BMMP related to those operative in bullous pemphigoid.
  
entities: ['mucous membrane']
entities: Multi-tissue_structure
entities: PMID-73315_T1
entities: ['mucous membrane']
entities: Multi-tissue_structure
entities: PMID-73315_T2
entities: ['lesions']
entities: Pathological_formation
entities: PMID-73315_T3
entities: ['skin']
entities: Organ
entities: PMID-73315_T4
entities: ['mucous membranes']
entities: Multi-tissue_structure
entities: PMID-73315_T5