{"title":"Early diagnosis of progressive multifocal leukoencephalopathy in untreated HIV infection via ultrasensitive PCR testing for JC virus: A case report","authors":"Kenji Nakano , Akira Kawashima , Takato Nakamoto , Kazuo Nakamichi , Ryo Kuwata , Seitaro Abe , Eri Inoue , Naokatsu Ando , Haruka Uemura , Daisuke Mizushima , Takahiro Aoki , Katsuji Teruya , Hiroyuki Gatanaga","doi":"10.1016/j.idcr.2025.e02229","DOIUrl":"10.1016/j.idcr.2025.e02229","url":null,"abstract":"<div><div>Progressive multifocal leukoencephalopathy (PML) is a fatal demyelinating disease triggered by the reactivation of JC virus (JCV) in individuals with immunodeficiency, particularly those with untreated human immunodeficiency virus (HIV) infection. This case report describes a 46-year-old HIV-positive man who initially presented with neurological symptoms and was incorrectly diagnosed as cerebral infarction. Although standard real-time polymerase chain reaction (PCR) testing for JCV in cerebrospinal fluid (CSF) at a commercial laboratory was negative, neuroimaging and clinical suspicion prompted ultrasensitive PCR testing at a national laboratory. This test detected a low viral load of JCV (28 copies/mL), confirming the diagnosis of PML. The patient underwent treatment with antiretroviral therapy and corticosteroids to prevent immune reconstitution inflammatory syndrome; however, his neurological symptoms persisted. This case highlights the importance of ultrasensitive CSF JCV testing for early PML diagnosis when standard PCR tests are inconclusive, particularly in HIV patients with atypically low JCV levels. It also highlights the diagnostic challenges of PML and emphasizes the clinical value of advanced PCR techniques for timely and accurate diagnosis in similar cases.</div></div>","PeriodicalId":47045,"journal":{"name":"IDCases","volume":"40 ","pages":"Article e02229"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IDCasesPub Date : 2025-01-01DOI: 10.1016/j.idcr.2025.e02228
Nazmun Naher, Chowdhury Adnan Sami, Md Mizanur Rahman Khan, Shohael Mahmud Arafat, Abed Hussain Khan
{"title":"Skull bone lytic lesions: A rare form of multifocal skeletal tuberculosis","authors":"Nazmun Naher, Chowdhury Adnan Sami, Md Mizanur Rahman Khan, Shohael Mahmud Arafat, Abed Hussain Khan","doi":"10.1016/j.idcr.2025.e02228","DOIUrl":"10.1016/j.idcr.2025.e02228","url":null,"abstract":"<div><div>Tuberculosis (TB) is a complex disease that can mimic numerous diseases involving different organ systems, making diagnosing TB challenging. Multifocal tubercular osteomyelitis is a rare form of skeletal TB that represents only a minority of all skeletal TB cases. Our patient, a 24-year-old immunocompetent male, complained of a low-grade fever that rises in the evening, scalp aches, right-sided chest pain, and non-inflammatory back pain with rest pain for six months. He had lost six kilograms over this period of illness. He was anemic, with mildly tender swelling in the right parietal region of the scalp. Diffuse tenderness was present over the dorsal spine and right side of the chest, with no evidence of gibbus. Multifocal skeletal tuberculosis was diagnosed based on the presence of lytic lesions in the skull, ribs, and vertebrae, along with high erythrocyte sedimentation rate and high tracer uptake on a bone scan, with a biopsy report showing a granulomatous lesion from the vertebra. After six months of anti-TB therapy, during a scheduled follow-up visit, the patient showed significant improvement in pain and general well-being, with an improvement of the skull lytic lesion on the x-ray. Multifocal tubercular osteomyelitis is rare in immunocompetent males without pulmonary involvement. Early recognition and subsequent treatment could prevent severe complications from bone destruction in these cases.</div></div>","PeriodicalId":47045,"journal":{"name":"IDCases","volume":"40 ","pages":"Article e02228"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IDCasesPub Date : 2025-01-01DOI: 10.1016/j.idcr.2025.e02178
Rami Waked , Jeffrey K. Moore , Brandon Winward , Sophia Ham , Howard W. Hoyt , Leyla Azis
{"title":"Tropheryma whipplei infection presenting as indolent endophthalmitis","authors":"Rami Waked , Jeffrey K. Moore , Brandon Winward , Sophia Ham , Howard W. Hoyt , Leyla Azis","doi":"10.1016/j.idcr.2025.e02178","DOIUrl":"10.1016/j.idcr.2025.e02178","url":null,"abstract":"<div><div><em>Tropheryma whipplei</em> (<em>T. whipplei</em>) infection can be difficult to diagnose due to its variable clinical manifestations and the limitations of standard diagnostic tests. This case describes a 78-year-old male with blurry vision and floaters in his right eye five months after cataract surgery, along with new onset weight loss and arthralgias. Ophthalmologic examination revealed inflammation and posterior vitritis, and vitreous biopsy identified <em>T. whipplei</em> via broad-range bacterial PCR, despite negative vitreous cultures and unremarkable flow cytometry. Gastrointestinal endoscopic and cerebrospinal fluid studies revealed no pathological or molecular evidence of the disease, complicating the diagnosis. Treatment with intravenous ceftriaxone followed by oral trimethoprim-sulfamethoxazole for 12 months resulted in resolution of symptoms and inflammation, with normalization of laboratory markers. This case underscores the diagnostic utility of broad-range bacterial PCR in atypical infections and highlights Whipple infection as a differential diagnosis in ocular presentations. Comprehensive interdisciplinary evaluation was critical for effective management.</div></div>","PeriodicalId":47045,"journal":{"name":"IDCases","volume":"39 ","pages":"Article e02178"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143360430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IDCasesPub Date : 2025-01-01DOI: 10.1016/j.idcr.2025.e02216
Yufei Lyu , Shiyuan Li , Dongshu Wang , Meijie Feng , Wenjun Li , Xiankai Liu , Jia Zhou , Li Nie , Chao Pan , Shujuan Yu , Yan Guo , Hua Shao
{"title":"Cutaneous anthrax rapidly progressed into septic anthrax resulting in death – A case report","authors":"Yufei Lyu , Shiyuan Li , Dongshu Wang , Meijie Feng , Wenjun Li , Xiankai Liu , Jia Zhou , Li Nie , Chao Pan , Shujuan Yu , Yan Guo , Hua Shao","doi":"10.1016/j.idcr.2025.e02216","DOIUrl":"10.1016/j.idcr.2025.e02216","url":null,"abstract":"<div><div>Anthrax is a fatal zoonotic disease and the acute risk associated with it cannot be underestimated. Cutaneous anthrax accounts for more than 95 % of anthrax and usually does not lead to death. We present a case of severe cutaneous anthrax treated with a three-day course of combination antibiotics therapy, which culminated into death due to multiple organ failure. The patient did not exhibit symptoms suspected of meningitis anthrax and pulmonary anthrax. Computed Tomography revealed subcutaneous exudates in the chest, back, left supraclavicular fossa, and bilateral axillary regions. Some newly factors, like hypotension, elevated creatinine, acidosis, and a urinary tract infection, provide valuable insights into the clinical intervention in early. In rural areas, educating residents about anthrax symptoms and risks is crucial.</div></div>","PeriodicalId":47045,"journal":{"name":"IDCases","volume":"40 ","pages":"Article e02216"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IDCasesPub Date : 2025-01-01DOI: 10.1016/j.idcr.2025.e02181
Chunyu Zhang , Hongxia Shen , Jing Zhang , Lujie Xu , Meixing Yan , Chang Liu
{"title":"Black tongue caused by linezolid in children: One case report and literature review","authors":"Chunyu Zhang , Hongxia Shen , Jing Zhang , Lujie Xu , Meixing Yan , Chang Liu","doi":"10.1016/j.idcr.2025.e02181","DOIUrl":"10.1016/j.idcr.2025.e02181","url":null,"abstract":"<div><div>Linezolid is commonly used to treat multidrug-resistant Gram-positive bacterial infections. Among children, the most common adverse reactions associated with linezolid administration encompass diarrhoea, vomiting, headache and thrombocytopenia. It is noted that tongue discoloration can occur with linezolid in the medication package insert. In this article, we present a case of a child with black tongue as a rare adverse reaction to linezolid and review of relevant literature.</div></div>","PeriodicalId":47045,"journal":{"name":"IDCases","volume":"39 ","pages":"Article e02181"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143360429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IDCasesPub Date : 2025-01-01DOI: 10.1016/j.idcr.2025.e02179
Shaivy Malik , Rajat , Charanjeet Ahluwalia
{"title":"Isolated tuberculoma involving multiple paranasal sinuses with aggressive features in an immunocompetent individual masquerading as a malignant neoplasm: A rarity unveiled with review of literature","authors":"Shaivy Malik , Rajat , Charanjeet Ahluwalia","doi":"10.1016/j.idcr.2025.e02179","DOIUrl":"10.1016/j.idcr.2025.e02179","url":null,"abstract":"<div><div>Isolated primary tuberculoma of the paranasal sinuses is an exceedingly rare form of extra-pulmonary tuberculosis (EPTB), particularly in immunocompetent individuals. Its presentation is often atypical, mimicking aggressive neoplasms due to features such as local bone destruction, which complicates diagnosis and may lead to unnecessary invasive interventions. We report the case of a 32-year-old immunocompetent male presenting with chronic right nasal obstruction, rhinorrhoea, facial puffiness, hyposmia, and intermittent fever. Imaging revealed a heterogeneous mass in the right frontal, ethmoidal, and maxillary sinuses, with extensive bony erosion suggestive of a malignant etiology. Histopathological examination of biopsy tissue, however, demonstrated granulomatous inflammation with Langhans giant cells, necrosis, and acid-fast bacilli on Ziehl-Neelsen staining, confirming tuberculoma. Anti-tubercular treatment (ATT) was promptly initiated post-biopsy, leading to complete symptom resolution and no recurrence. This case sheds light on the importance of including tuberculoma in the differential diagnosis of aggressive sinonasal lesions in immunocompetent patients despite their rarity, and highlights the critical role of histopathology and ATT in effective management, potentially preventing extensive surgical resections and associated morbidity.</div></div>","PeriodicalId":47045,"journal":{"name":"IDCases","volume":"39 ","pages":"Article e02179"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143386996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Necrotic erythema nodosum leprosum – A case of severe lepromatous reaction in a multibacillary leprosy patient","authors":"Hrithik Dakssesh Putta Nagarajan , Balakrishnan Kamaraj , Keerthivasan Selvanathan , Shubham Kumar , Shilpa Gaidhane , Sanjit Sah , Prakasini Satapathy , Rachana Mehta , Rodrigue Ndabashinze , Amogh Verma","doi":"10.1016/j.idcr.2025.e02152","DOIUrl":"10.1016/j.idcr.2025.e02152","url":null,"abstract":"<div><div>Necrotic erythema nodosum leprosum (ENL) is an uncommon and severe complication of multibacillary leprosy, characterized by intense systemic inflammation, ulcerative lesions, and significant morbidity. This case report describes a 32-year-old male presenting with recurrent type 2 lepra reactions and necrotic lesions exacerbated by inconsistent adherence to multidrug therapy (MDT). The patient’s management involved MDT, corticosteroids, thalidomide, and hydroxychloroquine, which led to a substantial clinical improvement. Emerging evidence and a multidisciplinary approach have been used to address this complex pathophysiology and clinical presentation. This report demonstrates the necessity for uninterrupted treatment, early recognition, and tailored therapeutic interventions for managing severe lepra reactions.</div></div>","PeriodicalId":47045,"journal":{"name":"IDCases","volume":"39 ","pages":"Article e02152"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11786067/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143081528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IDCasesPub Date : 2025-01-01DOI: 10.1016/j.idcr.2025.e02248
Fabrizio Tropea , David Fraulino , Jeffrey Aeschlimann , P. Rocco LaSala , Sonia Magano
{"title":"Elizabethkingia meningoseptica: Case report on an emerging pathogen and its associated treatment challenges","authors":"Fabrizio Tropea , David Fraulino , Jeffrey Aeschlimann , P. Rocco LaSala , Sonia Magano","doi":"10.1016/j.idcr.2025.e02248","DOIUrl":"10.1016/j.idcr.2025.e02248","url":null,"abstract":"<div><div><em>Elizabethkingia meningoseptica</em> is a Gram-negative bacillus that was previously thought to rarely infect humans but recently has been identified as an emerging pathogen in both community and nosocomial settings. Typically found in the environment, this organism has been shown to infect predisposed hosts with an immunocompromised status and/or a prolonged exposure to healthcare settings. Herein, we report a case of a 78-year-old male with newly diagnosed myelodysplastic syndrome initially admitted to the hospital with pneumonia and then re-admitted after discharge with septic shock and evidence of <em>E. meningoseptica</em> bacteremia isolated from blood cultures. Treatment with piperacillin-tazobactam was initiated and later escalated to dual-therapy with the addition of levofloxacin. After hemodynamic stability was achieved, the patient was discharged on oral levofloxacin to complete a 21-day course of therapy. <em>E. meningoseptica</em> displays a unique multi-drug resistant profile that often makes initial antimicrobial selection challenging. This case illustrates the importance of early detection and use of in vitro susceptibility testing to guide therapeutic decision-making in <em>E. meningoseptica</em> infections; a pathogen known to have both high morbidity and mortality particularly in the immunocompromised.</div></div>","PeriodicalId":47045,"journal":{"name":"IDCases","volume":"40 ","pages":"Article e02248"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IDCasesPub Date : 2025-01-01DOI: 10.1016/j.idcr.2025.e02249
Anyue Xia , Jinliang Liu , Cuilan Tang , Huan Xu
{"title":"A case report of sofosbuvir induced drug eruption and literature review","authors":"Anyue Xia , Jinliang Liu , Cuilan Tang , Huan Xu","doi":"10.1016/j.idcr.2025.e02249","DOIUrl":"10.1016/j.idcr.2025.e02249","url":null,"abstract":"<div><div>Sofosbuvir, a pan-genotypic antiviral agent, has emerged as a cornerstone in the treatment of chronic hepatitis C, offering significant efficacy. Despite its established therapeutic benefits, the drug’s safety profile and the occurrence of adverse reactions are less documented due to its recent introduction to the market. Here we report a patient who experienced drug-induced eruption induced by two distinct sofosbuvir-containing regimens. The report includes a thorough analysis and discussion of the case, accompanied by a comprehensive literature review.</div></div>","PeriodicalId":47045,"journal":{"name":"IDCases","volume":"40 ","pages":"Article e02249"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IDCasesPub Date : 2025-01-01DOI: 10.1016/j.idcr.2025.e02246
Guo Li , Shan Yuan , Peng Wang , Min Pang , Xianqiong Pang
{"title":"Nodular reverse halo sign in a hemodialysis patient with polycystic kidney disease and pulmonary tuberculosis","authors":"Guo Li , Shan Yuan , Peng Wang , Min Pang , Xianqiong Pang","doi":"10.1016/j.idcr.2025.e02246","DOIUrl":"10.1016/j.idcr.2025.e02246","url":null,"abstract":"<div><div>A 56-year-old man with polycystic kidney disease (PKD) and end-stage renal disease (ESRD) on long-term hemodialysis presented with decreased appetite, malaise, cough and fever. Chest CT revealed a nodular reverse halo sign (NRHS), a rare but relatively specific feature associated with pulmonary tuberculosis (TB). Although conventional sputum smears were negative for acid-fast bacilli, <em>Mycobacterium tuberculosis</em> was identified in bronchoalveolar lavage fluid through Xpert MTB/RIF testing and targeted next-generation sequencing. This case highlights: (1) NRHS as a significant radiologic indicator of TB, even in immunocompromised patients; (2) the need for advanced diagnostic tools when conventional tests are inconclusive; and (3) the impact of economic barriers in resource-limited settings, which can delay treatment and contribute to poor outcomes. Timely TB screening and accessible treatment are essential for high-risk populations, particularly those undergoing hemodialysis.</div></div>","PeriodicalId":47045,"journal":{"name":"IDCases","volume":"40 ","pages":"Article e02246"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}