The 'cigarette burn' sign.
A 64-year-old man from an Indian dengue endemic area was admitted with 9 days history of fever, rashes and decreased urine output. Clinically, he was febrile with generalized macular rash over the body. On investigations, he had decreased platelet counts (60 000/mm3), increased hematocrit (52%) and increased serum urea and creatinine levels (108 and 3.8 mg%, respectively). He was treated empirically for …