Papulonecrotic tuberculid with new lesion at the site of tuberculin test: An unusual manifestation
DOI:
https://doi.org/10.66344/jpad.33.2.2023.2076Abstract
Papulonecrotic tuberculid (PNT) is a form of cutaneous tuberculosis caused by hypersensitivity reaction towards M. tuberculosis. It presents in the form of erythematous papules that can progress into pustules or necrosis before turning into ulcus that heals after several weeks. Tuberculin test is one of the methods for PNT diagnosis. In rare occasions, a PNT lesion can manifest in the location of tuberculin test. A 42-year-old woman present with inflamed dots on both upper and lower extremities for 3 months before. Pruritus, pain, fever, cough, weight loss, night sweat, and myalgia are denied. Two years ago, the patient has a history of taking care of a family with lung tuberculosis. Tuberculin test was done on the patient, and it developed into a new lesion, an unusual occasion. Clinicopathology results of the patient concludes the diagnosis for PNT, for which the patient was given a regiment of antituberculosis drug for 6 months. Two months after the therapy no new lesions were formed, followed by resolution of the lesions in extremities. A follow up check did not find any recurrence of the disease. This case shows a good response towards tuberculosis drug for a case of PNT within months of starting the regiment. ÂReferences
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