“…In this patient, chikungunya was ruled out as IgM for chikungunya and prior history of fever with rash was absent. Other causes of cutaneous hyperpigmentation including Addison's disease, Wilson's disease, hemochromatosis, vitamin B12 deficiency, nonsteroidal antiinflammatory drugs, antimalarials, amiodarone, cytotoxic drugs, and heavy metals were directly, or indirectly, ruled out in our case …”