[Case Report Comment] Cutaneous nodules with positive autoantibodies: diagnostic pitfalls
Leprosy is still an important global disease, with 213 899 new cases reported to WHO in 2014.1 The countries with the highest numbers of cases are India (125 785), Brazil (31 064), and Indonesia (17 025). China reported 823 cases that year. WHO criteria for diagnosis of leprosy are a patient who has one of: skin lesion consistent with leprosy with definite loss of sensation; thickened peripheral nerves; or acid-fast bacilli in skin smears or biopsy sample. However, patients can present with various skin lesions, ranging from papules or nodules to infiltration or plaques,1 and they might also have neurological lesions, including nerve palsies in any of the affected peripheral nerves.