Background: Pneumocystis jirovecii, formerly named Pneumocystis carinii, is one of the most common opportunistic infections in human immunodeficiency virus (HIV)-infected patients.
Case Presentations: We encountered two cases of spontaneous pneumomediastinum with subcutaneous emphysema in HIV-infected patients being treated for Pneumocystis jirovecii pneumonia with trimethoprim/sulfamethoxazole.
Conclusion: Clinicians should be aware that cystic lesions and bronchiectasis can develop in spite of trimethoprim/sulfamethoxazole treatment for P. jirovecii pneumonia. The newly formed bronchiectasis and cyst formation that were noted in follow up high resolution computed tomography (HRCT) but were not visible on HRCT at admission could be risk factors for the development of pneumothorax or pneumomediastinum with subcutaneous emphysema in HIV-patients.
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http://dx.doi.org/10.1186/1471-2334-9-171 | DOI Listing |
Open Med (Wars)
December 2024
Department of Pulmonary and Critical Care Medicine, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, Hainan, China.
Introduction: Recurrent opportunistic infections are particularly common in patients infected with human immunodeficiency virus (HIV). However, these opportunistic infections have also been reported in HIV-negative patients, especially those with primary immunodeficiency disorder (PID), a condition that involves a large heterogeneous group of disorders arising from defects in immune system development and/or function.
Case: Here, we report a very rare case of recurrent opportunistic infections in a non-HIV-infected patient combined with mutations in complement component C6 and nuclear factor kB subunit 1 ().
Turk Arch Pediatr
January 2025
Division of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye.
Objective: Prolidase deficiency is a metabolic and immunological disorder that is inherited in an autosomal recessive manner. In prolidase deficiency, a broad spectrum of differences is observed in patients, ranging from asymptomatic to multisystem involvement. There is scarce information in the literature on the atypical features and immunophenotypes of this disease.
View Article and Find Full Text PDFJ Infect Chemother
January 2025
Department of Respiratory Medicine, Hamamatsu Medical Center, Hamamatsu, Japan.
We describe a rare case of spontaneous remission of Pneumocystis jirovecii pneumonia (PCP) in a 42-year-old patient with human immunodeficiency virus (HIV) infection, followed by severe pulmonary nocardiosis. To our knowledge, this is the first report of spontaneous remission of PCP in a completely untreated patient with HIV infection. The patient, a bisexual Japanese man, presented with fever and anorexia and had a history of non-compliance with antiretroviral therapy (ART) for 13 years.
View Article and Find Full Text PDFBMC Pulm Med
January 2025
Central Laboratory, Liaocheng People's Hospital and Liaocheng School of Clinical Medicine, Shandong First Medical University, Liaocheng, Shandong, 252000, China.
Background: Polymicrobial pulmonary infections, common in immunocompromised patients, often manifest more severe symptoms than monomicrobial infections. Clinical diagnosis delays may lead to mortality, emphasizing the importance of fast and accurate diagnosis for these patients. Metagenomic next-generation sequencing (mNGS), as an unbiased method capable of detecting all microbes, is a valuable tool to identify pathogens, particularly in cases where infections are difficult to diagnosis using conventional methods.
View Article and Find Full Text PDFJ Pediatric Infect Dis Soc
December 2024
Bill & Melinda Gates Foundation, Seattle, WA, USA.
In low-to-middle income countries, acute lower respiratory infection (ALRI) remains the leading infectious cause of death among infants and children under 5 years old. Case-control studies based on upper respiratory sampling have informed current understandings of ALRI etiologies; in contrast, minimally-invasive tissue sampling (MITS) offers a method of directly interrogating lower respiratory tract pathogens to establish etiologic distributions. This study performed in the post-mortem setting used MITS and a Determination of Cause of Death (DeCoDe) panel to elucidate causes of fatal pneumonia in the community in Lusaka, Zambia.
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