system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A patient presented with oral mucosal lesions and flaccid blisters Over skin. It detects what and which pattern under microscopic examination?
assistant
The correct answer is  In pemphigus vulgaris skin involvement stas in the form of flaccid blisters. Cutaneous lesions are usually preceded by blisters and erosions of oral mucosa In Direct immunofluorescence intercellular IgG -fishnet pattern throughout the epidermis is seen in pemphigus vulgaris. page no.280,287 Reference IADVL's concise textbook of dermatology