A 45 year old male has multiple grouped vesicular lesions present on the TN segment dermatome associated with pain. The most likely diagnosis is: (A) Herpes zoster, (B) Dermatitis herpetiformis, (C) Herpes simplex, (D) Scabies
Answer is A. Painful vesicles along the distribution of a dermatome suggest the diagnosis of Herpes zoster.