Insulin-Mediated Lipohypertrophy - Two painless, rubbery, hyperpigmented masses were noted near the umbilical area. The patient reported that for the preceding 10 years he had injected insulin detemir at those sites twice daily. Lipohypertrophy typically causes such palpable, rubbery growths, although the hyperpigmentation seen in this patient is less typical. #Clinical #Derm #Endo #PrimaryCare #InsulinMediatedLipohypertrophy #Lipohypertrophy #Insulin #NEJM
