keyword
https://read.qxmd.com/read/38490710/cervical-lymphadenitis-from-mycobacterium-avium-complex
#1
JOURNAL ARTICLE
Jared Coe, Yoram Puius, Harsh Jain, Eric A Meyerowitz
We present an instructive case of cervical lymphadenitis in a young man without a history of HIV infection. The patient developed spontaneous left-sided neck swelling that progressed over 4 months. CT imaging demonstrated a necrotic left-sided neck mass within the cervical lymph node chain. He was initially prescribed azithromycin and rifampin for presumed cat scratch disease with improvement but incomplete resolution of symptoms. Blood cultures ordered 2 months later grew Mycobacterium avium complex (MAC) and the patient had an excellent clinical response to MAC therapy...
March 15, 2024: BMJ Case Reports
https://read.qxmd.com/read/38472519/unmasking-bartonella-henselae-infection-in-the-shadows-of-long-covid-thanks-to-clinical-metagenomics
#2
JOURNAL ARTICLE
Aurélien Aubry, Emilie Corvilain, Théo Ghelfenstein-Ferreira, François Camelena, Véronique Meignin, Béatrice Berçot, Jérôme Le Goff, Maud Salmona
The diagnosis of long COVID often relies on symptoms post-COVID-19, occasionally lacking biological evidence. This case study illustrates how investigating long COVID uncovered an underlying bartonellosis through clinical metagenomics. Following mild COVID-19, a 26-year-old woman experienced persistent symptoms during 5 months, including axillary adenopathy. Pathological examination, 16 S rRNA PCR, and clinical metagenomic analysis were done on an adenopathy biopsy. The latter revealed Bartonella henselae DNA and RNA...
March 12, 2024: European Journal of Clinical Microbiology & Infectious Diseases
https://read.qxmd.com/read/38447104/bartonella-henselae-infection-and-lymphadenopathy-in-a-patient-with-t-cell-acute-lymphoblastic-leukemia
#3
JOURNAL ARTICLE
Arhanti Sadanand, Pratik Patel, Erica Riedesel, Frank Berkowitz, Frank G Keller
Patients undergoing therapy for T cell acute lymphoblastic leukemia are at risk of infections during their treatment course. Cat scratch disease caused by Bartonella hensalae can masquerade as leukemic relapse and cause systemic infection. Obtaining a thorough exposure history may aid clinicians in making the diagnosis.
February 29, 2024: Journal of Pediatric Hematology/oncology
https://read.qxmd.com/read/38444733/a-man-in-his-forties-with-recurrent-cat-scratch-disease
#4
Sara López-Rueda, Benjamin Valente-Acosta, Adrian Murillo-Zolezzi, Francisco Moreno-Sánchez, Irma Hoyo-Ulloa, Jesús Javier Baquera-Heredia
Cat-scratch disease (CSD) is a self-limited zoonotic infection transmitted by felines caused by the Gram-negative bacillus Bartonella henselae . It usually presents with lymphadenopathy and constitutional symptoms that resolve within eight weeks, with, or without antibiotic treatment. The diagnosis is made by serology, molecular diagnosis in a biopsy, or a positive culture. The recurrence or reactivation of B. henselae has rarely been reported. We present the case of a 45-year-old man with a history of CSD two years before who presented to the clinic with groin lymphadenopathy...
2024: Case Reports in Infectious Diseases
https://read.qxmd.com/read/38415601/correlation-between-aggression-at-the-veterinary-clinic-and-problem-behaviors-at-home-for-cats-in-the-usa
#5
JOURNAL ARTICLE
Alison Gerken, Kyuyoung Lee, Melissa Bain, Sun-A Kim
OBJECTIVES: The aim of the study was to determine whether cats that exhibit aggression during veterinary visits are more likely to have behavior problems at home. METHODS: An online, anonymous, cross-sectional survey was developed and distributed to residents in the USA who were aged over 18 years and who were the primary owners of at least one cat. The survey collected information about cat and household factors, and utilized a validated questionnaire instrument for obtaining behavioral information of pet cats...
February 2024: Journal of Feline Medicine and Surgery
https://read.qxmd.com/read/38361554/cat-scratch-endocarditis
#6
Jacopo De Cristofaro, Stefania Sacchi, Luca Baldetti, Francesco Calvo, Mario Gramegna, Vittorio Pazzanese, Beatrice Peveri, Lorenzo Cianfanelli, Silvia Ajello, Anna Mara Scandroglio
We reported a case of blood culture-negative infective endocarditis on a native valve, where the clinical presentation was exclusively related to extensive cerebral ischemia secondary to multiple systemic septic cardioembolic events. The cause was ascribed to subacute Bartonella henselae infection, presumably transmitted by cat scratch, documented by positive serologic findings.
February 7, 2024: JACC. Case reports
https://read.qxmd.com/read/38357045/optic-neuritis-and-vertebral-osteomyelitis-an-uncommon-presentation-of-cat-scratch-disease
#7
António Carujo, André Santos Silva, Fábio Videira Santos, Maria João Furtado, António Ludgero Vasconcelos
In cat-scratch disease (CSD), hematogenous spread may result in atypical presentations. Ocular manifestations develop in a minority of patients, with treatment being important in reducing long-term visual sequelae. Bone infection is rare. We present the case of a 52-year-old woman, with close contact with cats, reporting acute unilateral blurred vision and presenting papilledema, optic disc pallor, and peripapillary hemorrhage. Etiologic study of optic neuritis revealed an elevated positive Bartonella IgG; hence, treatment for CSD with doxycycline plus rifampin and corticosteroids was started...
January 2024: Curēus
https://read.qxmd.com/read/38338163/semiochemicals-from-domestic-cat-urine-and-feces-reduce-use-of-scratching-surfaces
#8
JOURNAL ARTICLE
Lingna Zhang, Edgar O Aviles-Rosa, Zhaowei Bian, Kaz Surowiec, John J McGlone
Scratching is a natural behavior in cats but can cause damage to household furnishings. In this work, we sought to identify potential semiochemicals in the urine and feces of domestic cats that may modify cat scratching behavior. Sex differences among adult, intact cats were examined for volatile molecules in their urine ( n = 7 females, 7 males) and feces ( n = 8 females, 10 males) using gas chromatography-mass spectrometry (GC-MS). Males had seven times more 3-Mercapto-3-Methyl Butanol (MMB, p < 0.001) in the urine and 98% more butanoic acid ( p = 0...
February 5, 2024: Animals: An Open Access Journal From MDPI
https://read.qxmd.com/read/38333562/cat-scratch-disease-masquerading-as-post-transplant-lymphoproliferative-disorder
#9
Paul Brian Ng Hung Shin, Samuel X Tan, Anthony Griffin, Ailin Tan, Vijay Kanagarajah
Lymphadenopathy in an immunosuppressed patient raises the quintessential diagnostic dilemma: infection or malignancy? We present the case of a transplant recipient on anti-rejection prophylaxis admitted with acute fever, malaise and a swollen right axillary node. The patient had pancytopenia and tested positive for Epstein-Barr virus; nodal core biopsy demonstrated atypical plasma cell infiltration, immediately raising suspicion for post-transplant lymphoproliferative disorder. However, excisional biopsy and Bartonella henselae serology clarified a final diagnosis of cat-scratch disease-a potentially fatal zoonosis requiring a disparate treatment regimen...
February 2024: Journal of Surgical Case Reports
https://read.qxmd.com/read/38327174/cat-scratch-disease-of-the-breast-axilla-recognition-of-a-rare-disease-and-approaches-for-differential-diagnosis
#10
JOURNAL ARTICLE
Jing Wang, Mingfei Yan, Philip Bomeisl, Sarah Sree Cherian, Hannah Gilmore, Ruba Khattab, Aparna Harbhajanka
Cat scratch disease rarely presents as a breast or axillary mass mimicking carcinoma both clinically and radiologically. Diagnosing breast/axillary cat scratch disease is challenging due to its rarity and nonspecific findings. Here, we reported 2 patients with breast cat scratch disease and reviewed 14 patients with cat scratch disease involving breast/axilla from the past 30 years. It mainly affects women (median age: 48), consistently presenting as axillary lymphadenopathy, and demonstrates ipsilateral breast mass in half of patients (50%, 8/16)...
February 7, 2024: International Journal of Surgical Pathology
https://read.qxmd.com/read/38311051/non-fatal-rupture-of-the-thoracic-aorta-due-to-a-cat-scratch
#11
JOURNAL ARTICLE
Marine Bordet, Charles-Hervé Vacheron
No abstract text is available yet for this article.
February 2, 2024: European Journal of Vascular and Endovascular Surgery
https://read.qxmd.com/read/38303085/epidemiology-of-bartonella-henselae-infection-in-pet-and-stray-cats-in-croatia-with-risk-factors-analysis
#12
JOURNAL ARTICLE
Maja Stepanić, Sanja Duvnjak, Irena Reil, Suzana Hađina, Volkhard A J Kempf, Silvio Špičić, Željko Mihaljević, Relja Beck
BACKGROUND: Cats are the primary reservoirs of the bacterium Bartonella henselae, the main cause of cat-scratch disease in humans. The main vector of the bacterium is the cat flea, Ctenocephalides felis. In southeastern Europe, data are lacking on the prevalence of B. henselae infection in cats, the strains of B. henselae involved and the risk factors associated with the infection. METHODS: Blood samples collected in ethylenediaminetetraacetic acid-containing tubes from 189 domestic cats (156 pet cats and 33 stray cats) from Zagreb, the capital city of Croatia, and 10 counties throughout Croatia were cultured for Bartonella spp...
February 1, 2024: Parasites & Vectors
https://read.qxmd.com/read/38300353/epidemiology-and-treatment-of-invasive-bartonella-spp-infections-in-the-united-states
#13
JOURNAL ARTICLE
Morgan Pizzuti, Pamela Bailey, Caroline Derrick, Benjamin Albrecht, Amy L Carr, Elizabeth W Covington, Connor R Deri, Sarah B Green, Jillian Hayes, Athena L V Hobbs, Krutika Mediwala Hornback, Elizabeth Keil, Jack G Lukas, Megan Seddon, Alex D Taylor, Joseph Torrisi, P Brandon Bookstaver
OBJECTIVES: Bartonella spp., renowned for cat-scratch disease, has limited reports of dissemination. Tissue and blood cultures have limitations in detecting this fastidious pathogen. Molecular testing (polymerase chain reaction, PCR) and cell-free DNA have provided an avenue for diagnoses. This retrospective observational multicenter study describes the incidence of disseminated Bartonella spp. and treatment-related outcomes. METHODS: Inclusion criteria were diagnosis of bartonellosis via diagnosis code, serology testing of blood, polymerase chain reaction (PCR) of blood, 16/18S tests of blood or tissue, cultures of blood or tissue, or cell-free DNA of blood or tissue from January 1, 2014, through September 1, 2021...
February 1, 2024: Infection
https://read.qxmd.com/read/38292999/isolation-of-pasteurella-pneumotropica-in-a-hand-phlegmon-following-a-human-bite
#14
Yassine Ben Lahlou, Abdelouahab Erraji, Elmostapha Benaissa, Mariama Chadli, Mostapha Elouennass
Pasteurella is a commensal microorganism found in the mucous membranes of the upper respiratory and digestive tracts of mammals and birds and it rarely affects humans. Human pasteurellosis typically results from infection through bites or scratches from animals, with dogs and cats being the most common sources. However, various vertebrates, such as rats, rabbits, tigers, and lions, can also transmit the infection. We report a case involving a young woman who developed a hand phlegmon on her right forearm following a rare and unusual human bite during a brawl...
December 2023: Curēus
https://read.qxmd.com/read/38288193/leptospirosis-induced-septic-shock-and-multi-organ-dysfunction-syndrome-a-complex-case-of-zoonotic-infection-in-a-young-female-patient
#15
Nino Gvajaia, Mariam Tkeshelashvili, Levan Ratiani, Elene Pachkoria, Ia Mikadze
Leptospirosis, a zoonotic infection caused by the Leptospira bacteria, can manifest with varying clinical severities, ranging from subclinical disease to severe multiorgan failure. This progression to severe multiorgan failure, also known as multi-organ dysfunction syndrome (MODS), is a life-threatening condition characterized by the dysfunction of two or more organ systems. Often, MODS is a consequence of events triggered by underlying pathologies, such as severe infections, including those caused by Leptospira ...
December 2023: Curēus
https://read.qxmd.com/read/38260440/mapping-the-trna-modification-landscape-of-bartonella-henselae-houston-i-and-bartonella-quintana-toulouse
#16
Samia Quaiyum, Jingjing Sun, Virginie Marchand, Guangxin Sun, Colbie J Reed, Yuri Motorin, Peter C Dedon, Michael F Minnick, Valérie de Crécy-Lagard
Transfer RNA (tRNA) modifications play a crucial role in maintaining translational fidelity and efficiency, and they may function as regulatory elements in stress response and virulence. Despite their pivotal roles, a comprehensive mapping of tRNA modifications and their associated synthesis genes is still limited, with a predominant focus on free-living bacteria. In this study, we employed a multidisciplinary approach, incorporating comparative genomics, mass spectrometry, and next-generation sequencing, to predict the set of tRNA modification genes responsible for tRNA maturation in two intracellular pathogens- Bartonella henselae Houston I and Bartonella quintana Toulouse, which are causative agents of cat-scratch disease and trench fever, respectively...
January 9, 2024: bioRxiv
https://read.qxmd.com/read/38254213/a-nowcast-model-to-predict-outdoor-flea-activity-in-real-time-for-the-contiguous-united-states
#17
JOURNAL ARTICLE
Stella Self, Yuan Yang, Heather Walden, Michael J Yabsley, Christopher McMahan, Brian H Herrin
BACKGROUND: The cat flea (Ctenocephalides felis), a parasite commonly found on both dogs and cats, is a competent vector for several zoonotic pathogens, including Dipylidium caninum (tapeworms), Bartonella henselae (responsible for cat scratch disease) and Rickettsia felis (responsible for flea-borne spotted fever). Veterinarians recommend that both cats and dogs be routinely treated with medications to prevent flea infestation. Nevertheless, surveys suggest that nearly one third of pet owners do not routinely administer appropriate preventatives...
January 22, 2024: Parasites & Vectors
https://read.qxmd.com/read/38241647/multifocal-long-bone-osteomyelitis-as-a-complication-of-disseminated-cat-scratch-disease
#18
JOURNAL ARTICLE
Paul Michel, Maria Valenzuela-Almada, Susana Gaviria, Janitzio Guzman, Padma Pavuluri, Andrea Hahn
No abstract text is available yet for this article.
January 19, 2024: Pediatric Infectious Disease Journal
https://read.qxmd.com/read/38238693/case-series-of-neuroretinitis-in-korea
#19
JOURNAL ARTICLE
Seung Kwon Choi, Ik Soo Byon, Han Jo Kwon, Sung Who Park
BACKGROUND: To present the clinical characteristics of neuroretinitis in Korea. METHODS: Twelve patients with neuroretinitis between January 2009 and September 2020 were retrospectively reviewed. Neuroretinitis was diagnosed based on fundus findings, optical coherence tomography, and fluorescein angiography. The serological findings of each patient were reviewed. RESULTS: Fifteen eyes of 12 patients (9 male and 3 female), with a mean age of 46...
January 18, 2024: BMC Ophthalmology
https://read.qxmd.com/read/38232998/-pasteurella-multocida-bacteraemia-with-liver-abscess
#20
JOURNAL ARTICLE
Tonnii Sia, Eunice Yong
A previously healthy woman in her mid-70s presented with right upper quadrant abdominal pain, fever, intermittent chills and malaise for 1 week. She was clinically septic with raised inflammatory markers. Her blood culture revealed Pasteurella multocida , which was susceptible to penicillin and amoxicillin-clavulanic acid. CT of liver revealed an abscess of 8.0×7.9×8.5 cm at the left lobe of the liver. However, the abscess was not amenable for surgical or radiological drainage. She was a farmer and had close contact with her pet cats...
January 16, 2024: BMJ Case Reports
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