A rare case of isoniazid mono-resistant tuberculosis presenting as cardiac tamponade along with an anterior mediastinal mass in a 15-year-old immunocompetent patient.
{"title":"A rare case of isoniazid mono-resistant tuberculosis presenting as cardiac tamponade along with an anterior mediastinal mass in a 15-year-old immunocompetent patient.","authors":"Richa Mishra, Ashima Jamwal, Bishal Gupta, Sudeep Kumar, Abhijeet Bharali, Parijat Das, Alok Nath, Manoj Jain, Zafar Neyaz","doi":"10.4103/lungindia.lungindia_221_23","DOIUrl":null,"url":null,"abstract":"<p><strong>Abstract: </strong>A 15-year-old boy presented with a sudden onset of breathlessness for 7 days, gradual loss of weight of 17.6 lbs over the last month and progressive hoarseness of voice for 7 months. The contrast-enhanced computed tomography (CECT) scan revealed a heterogeneously enhancing lesion in the anterior mediastinum with multiple discrete lymph nodes in the cervical and mediastinal locations. The GeneXpert MTB/RIF assay performed on the CT-guided biopsy of the mass was negative, but the culture for Mycobacterium tuberculosis was positive at 7 weeks of incubation. There was a suboptimal radiological response after 6 months of treatment. First-line drug susceptibility testing (DST) performed by line probe assay (LPA) on the positive culture detected high-level resistance to isoniazid. The treatment was modified as per DST results to which the patient responded well.</p>","PeriodicalId":47462,"journal":{"name":"Lung India","volume":"41 2","pages":"130-134"},"PeriodicalIF":1.3000,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10959313/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lung India","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4103/lungindia.lungindia_221_23","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/2/27 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"RESPIRATORY SYSTEM","Score":null,"Total":0}
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Abstract
Abstract: A 15-year-old boy presented with a sudden onset of breathlessness for 7 days, gradual loss of weight of 17.6 lbs over the last month and progressive hoarseness of voice for 7 months. The contrast-enhanced computed tomography (CECT) scan revealed a heterogeneously enhancing lesion in the anterior mediastinum with multiple discrete lymph nodes in the cervical and mediastinal locations. The GeneXpert MTB/RIF assay performed on the CT-guided biopsy of the mass was negative, but the culture for Mycobacterium tuberculosis was positive at 7 weeks of incubation. There was a suboptimal radiological response after 6 months of treatment. First-line drug susceptibility testing (DST) performed by line probe assay (LPA) on the positive culture detected high-level resistance to isoniazid. The treatment was modified as per DST results to which the patient responded well.