Mysteries in Morphology: Helpful Visual Clues in Rash Diagnosis

Mysteries in Morphology: Helpful Visual Clues in Rash Diagnosis by Craig Teller MD

• Reticulated dermatitis in a child is associated with cutis marmorata, while in an adult it is associated with antiphospholipid syndrome.
• Red scrotum is almost always going to be candidal in nature. Focus therapy on azoles. Also remember to treat intertrigo for candida involvement.
• Consider discoid lupus, in addition to squamous cell carcinoma, in a lesion you believed to be an actinic keratosis, but is not responding to cryotherapy. Follicular plugging may provide a morphological clue to diagnose DLE.
• Lamellar dyshidrosis, also known as keratolysis exfoliativa, may occur following viral infection.