title: Spot the diagnosis: necrobiosis lipoidica diabeticorum.
mesh_terms: D048909:Diabetes Complications; D003937:Diagnosis, Differential; D005533:Foot Dermatoses / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009335:Necrobiosis Lipoidica / Q000175:diagnosis*