While most episodes of community-acquired pneumonia are caused by Streptococcus pneumoniae and respiratory viruses, other atypical pathogens can also be responsible for lung infections. The Infectious Diseases Service of the Lausanne University Hospital (CHUV) organizes an annual meeting aimed at general practitioners, during which interesting clinical cases are presented. In this article, we summarize five cases of community-aquired respiratory infection due to atypical pathogens that were presented during the 2023 meeting, each with a particular teaching point. Although these infections are rare, expanding the differential diagnosis in cases of suboptimal response to therapy or particular exposures is warranted.
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http://dx.doi.org/10.53738/REVMED.2024.20.869.734 | DOI Listing |
Neurol Neuroimmunol Neuroinflamm
March 2025
Neuroimmunology Laboratory and Neuroimmunology Research Section, IRCCS Mondino Foundation, Pavia, Italy.
Background And Objectives: Antibodies to proteolipid protein-1 (PLP1-IgG), a major central myelin protein also expressed in the peripheral nervous system (PNS) as the isoform DM20, have been previously identified mostly in patients with multiple sclerosis (MS), with unclear clinical implications. However, most studies relied on nonconformational immunoassays and included few patients with non-MS CNS autoimmune demyelinating disorders (ADDs). We aimed to investigate conformational PLP1-IgG in the whole ADD spectrum.
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December 2024
Laboratory of Genomic Medicine, GHC GENETICS SK, Comenius University Science Park, Bratislava, SVK.
X-linked severe combined immunodeficiency disease (X-SCID) is a form of inborn errors of immunity (IEI) associated with causal DNA variants of the gene. Patients with X-SCID are characterized by a combination of cellular and humoral immunodeficiencies associated with increased susceptibility to infections. The presented cases constituted two unrelated male patients from the Slovak population.
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December 2024
Internal Medicine, O'Connor Hospital, Santa Clara, USA.
Osteomyelitis is commonly caused by pathogens like , but rare organisms such as , typically associated with superficial skin infections, can also be implicated. Recognizing these atypical pathogens presents diagnostic and therapeutic challenges, especially in the presence of orthopedic hardware. We conducted a literature review yielding 25 studies and encompassing 797 patient cases, which highlights the emerging role of species in osteomyelitis, particularly following trauma or surgical interventions.
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December 2024
Department of Orthopaedics and Traumatology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, TUR.
Shoulder abscesses, commonly resulting from bacterial infections, can occasionally present with atypical etiologies and delayed onset. We report a rare case of a massive polymicrobial shoulder abscess developing two decades after an insect bite, emphasizing its clinical presentation, diagnostic approach, and surgical management. A 65-year-old female presented with severe, progressively worsening right shoulder pain, a 20 cm swelling, and purulent discharge persisting for 15 days.
View Article and Find Full Text PDFBMC Infect Dis
January 2025
Liaoning Provincial Key Laboratory of Cornea and Ocular Surface Diseases, Liaoning Provincial Optometry Technology Engineering Research Center, The Third People's Hospital of Dalian, Dalian Municipal Eye Hospital, Dalian Municipal Cancer Hospital, No. 40, Qianshan Road, Ganjingzi District, Dalian, Liaoning, China.
Background: Conjunctival sporotrichosis is a rare fungal infection, typically presenting as granulomatous lesions. Its manifestations can be atypical, particularly in immunosuppressed patients. Here, we present a rare case of a Mooren's ulcer patient with bulbar conjunctival Sporotrichosis presenting as a salmon-pink tumor.
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