An acquired immune deficiency due to interferon gamma (IFN-γ) autoantibodies was diagnosed in a 78-year-old Japanese man with treatment-refractory disseminated nontuberculous mycobacterial infection. In addition to standard antimycobacterial therapy, he was successfully treated with rituximab to eliminate B cells and thereby the autoantibody. Subsequently, he obtained a sustained remission from infection.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3935498 | PMC |
http://dx.doi.org/10.1093/cid/cit809 | DOI Listing |
J Infect Public Health
January 2025
Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China. Electronic address:
Background: Nontuberculous mycobacteria (NTM) are emerging pathogens responsible for increasing skin and soft tissue infections (SSTIs) globally. However, the diagnosis and treatment of NTM SSTIs face significant challenges due to the lack of standardized guidelines. This study reviewed the clinical characteristics, diagnostic challenges, and treatment outcomes of NTM SSTIs in a large cohort from a tertiary referral center in Beijing, China.
View Article and Find Full Text PDFIDCases
December 2024
Department of Medicine, Mary Washington Healthcare, Fredericksburg, VA, USA.
is a rapidly growing nontuberculous mycobacterium (NTM) that is ubiquitous in the environment and is associated with skin and soft tissue infections (1). Because is an opportunistic infection, it can present as skin abscess, cellulitis, osteomyelitis, pulmonary infection or disseminated infections, particularly in individuals with compromised immune systems or underlying lung conditions such as cystic fibrosis or bronchiectasis. is one of the most pathogenic rapidly growing mycobacteria (RGM).
View Article and Find Full Text PDFEur J Microbiol Immunol (Bp)
January 2025
1Department of Infectious Diseases, John Hunter Hospital, New Lambton Heights, NSW 2305, Australia.
Interferon-gamma (IFN-γ) autoantibody syndrome is an emerging clinical entity that has been associated with disseminated non-tuberculous mycobacterial infection (dNTM) particularly in healthy young people, a population not previously thought to be at particular risk. A 29-year-old South-East Asian man presented with several weeks of fever, cough, lymphadenopathy, and constitutional symptoms while working on an international cargo ship, deteriorating rapidly with a sepsis-like syndrome. Eventually lymph node and sputum cultures revealed a diagnosis of dNTM infection with growth of both Mycobacterium persicum and Mycobacterium abscessus.
View Article and Find Full Text PDFPediatr Transplant
February 2025
Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA.
Background: Disseminated mycobacterium poses a significant risk for patients with NEMO deficiency. Hematopoietic stem cell transplant (HSCT) corrects the NEMO defect in hematopoietic cells thus treating the immunodeficiency.
Methods: We present a patient with NEMO deficiency who successfully underwent HSCT despite a disseminated Mycobacterium szulgai infection.
J Med Case Rep
December 2024
Center for Medical Experiments (CME), Guangming District People's Hospital, Shenzhen, 518106, China.
Background: Idiopathic CD4+ T lymphocytopenia is a rare immune dysfunction disease that is usually found after opportunistic infections. Mycobacterium abscessus is a rapidly growing mycobacterium that can cause pulmonary infections, lymphadenitis, skin and soft tissue infections, disseminated infections, among others, as a conditional pathogenic bacterium.
Case Presentation: We present the case of a 43-year-old Chinese woman who developed disseminated Mycobacterium abscessus infection due to idiopathic CD4+ T lymphocytopenia.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!