Derm Dx: Reticulated erythema on the lumbar back

A 36-year-old woman presented for evaluation of a rash on her lower back and bilateral flanks. She has a history of interstitial cystitis and has had more than 15 surgeries. Most recently, she had a nerve stimulator implanted three weeks prior to presentation.

The patient reported no complications from the surgery and stated she was doing well until ...