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https://www.readbyqxmd.com/read/28239602/first-case-of-cd40lg-deficiency-in-ecuador-diagnosed-after-whole-exome-sequencing-in-a-patient-with-severe-cutaneous-histoplasmosis
#1
Luis Alberto Pedroza, Nina Guerrero, Asbjørg Stray-Pedersen, Cristina Tafur, Roque Macias, Greta Muñoz, Zeynep Coban Akdemir, Shalini N Jhangiani, Levi B Watkin, Ivan K Chinn, James R Lupski, Jordan S Orange
Severe infections with Histoplasma capsulatum are commonly observed in patient with secondary immunodeficiency disorders. We report a two and a half years old boy previously healthy with disseminated cutaneous histoplasmosis. Using whole exome sequencing, we found an indel mutation at the CD40LG gene, suggesting a diagnosis of hyper-IgM (HIGM) syndrome, even in the absence of the usual features for the disease. Interestingly, the patient lives in a region endemic for histoplasmosis. The unusual infections in our case suggest that in children with severe histoplasmosis and resident in endemic areas, HIGM syndrome should be considered as a diagnosis...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28239394/standardization-and-validation-of-dot-elisa-assay-for-paracoccidioides-brasiliensis-antibody-detection
#2
Camila Mika Kamikawa, Rinaldo Poncio Mendes, Adriana Pardini Vicentini
BACKGROUND: Paracoccidioidomycosis (PCM) is a neglected systemic mycosis caused by a dimorphic fungus of the Paracoccidioides genus. The standard diagnosis is based on isolation of the fungi in culture, and by microscopic visualization of characteristic multiple budding yeast cells in biological samples. However, in some situations, access to the site of injury prevents the collection of biological material. A variety of immuno-serological techniques has proven useful for allowing inferring diagnosis with a certain degree of certainty, thus optimizing time...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28225373/outer-retinal-tubulation-a-case-series
#3
Leticia A Rousso, Julie A Rodman, Brad Sutton, Diana L Shechtman
PURPOSE: The advent of spectral domain optical coherence tomography has led to superb imaging capabilities in addition to enhanced visualization of the retinal layers. Such advancements have led to the identification of a variety of new retinal conditions, including outer retinal tubulations (ORTs). ORTs are ovoid hyporeflective spaces located in the outer retina. The pathogenesis is unclear but seems to involve sublethal injury to the photoreceptors leading to a compensatory reorganization of the photoreceptor layer with the neighboring ellipsoid zone resulting in a hyperreflective border surrounding a central lumen...
March 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28220360/oral-histoplasmosis
#4
Gillian A Folk, Brenda L Nelson
A 44-year-old female presented to her general dentist with the chief complaint of a painful mouth sore of 2 weeks duration. Clinical examination revealed an irregularly shaped ulcer of the buccal and lingual attached gingiva of the anterior mandible. A biopsy was performed and microscopic evaluation revealed histoplasmosis. Histoplasmosis, caused by Histoplasma capsulate, is the most common fungal infection in the United States. Oral lesions of histoplasmosis are generally associated with the disseminated form of histoplasmosis and may present as a fungating or ulcerative lesion of the oral mucosa...
February 20, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28214953/amplification-of-blood-smear-dna-to-confirm-disseminated-histoplasmosis
#5
T Dieng, A Massaly, D Sow, S Vellaissamy, K Sylla, R C Tine, Y Dieng, C Hennequin
BACKGROUND: The prevalence of the Histoplasma capsulatum var. capsulatum (Hcc) histoplasmosis may be underestimated West Africa, both because the diagnosis is not mentioned in the early stages of the disease and due to limited biological resources available. CASE REPORT: We report a case of disseminated histoplasmosis due to Hcc in a Senegalese HIV patient. The diagnosis was suspected following the demonstration of small encapsulated yeasts within neutrophils on a thin blood smear...
February 18, 2017: Infection
https://www.readbyqxmd.com/read/28210571/unmasking-histoplasmosis-immune-reconstitution-inflammatory-syndrome-in-a-patient-recently-started-on-antiretroviral-therapy
#6
Reuben Kiggundu, Henry W Nabeta, Richard Okia, Joshua Rhein, Robert Lukande
Histoplasmosis is the most common endemic mycoses among HIV-infected people. Patients with suppressed cell immunity mainly due to HIV are at increased risk of disseminated disease. Dermatological manifestations of immune reconstitution inflammatory syndrome (IRIS) and cutaneous manifestations of histoplasmosis similar to an IRIS event have been previously described. We report the case of a 43-year-old male who presented with cutaneous disseminated histoplasmosis due to Histoplasma capsulatum var. capsulatum 4 months after the onset of the antiretroviral therapy and some improvement in the immune reconstitution...
October 2016: Autopsy & case reports
https://www.readbyqxmd.com/read/28194072/an-unusual-cause-of-fever-generalized-lymphadenopathy-and-eosinophilia-in-a-hcv-positive-6-year-old-boy
#7
Rajesh Kumar, Prashant Sharma, Pranab Dey, Babu Ram Thapa
A 6-year-old boy presented with a 3-month history of high-grade fever and night-sweats but without chills/rigors. On examination, he had moderate hepatosplenomegaly with multiple enlarged cervical and axillary lymph nodes. His hemogram revealed anemia and marked eosinophilia. Initial investigations were negative, except anti-HCV IgG antibodies, that were positive. Bone marrow aspirate showed a single histiocyte containing suspicious intracellular yeast-like forms. Cervical lymph node aspiration revealed a heavy load of intra- and extra-cellular Histoplasma spp...
March 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28161744/burden-of-serious-fungal-infections-in-bangladesh
#8
H C Gugnani, D W Denning, R Rahim, A Sadat, M Belal, M S Mahbub
In Bangladesh there are several published papers on superficial mycoses. Deep mycoses are also recognized as an important emerging problem. Here, we estimate the annual incidence and prevalence of serious fungal infections in Bangladesh. Demographic data were obtained from world population reports and the data on TB and HIV extracted from the online publications on tuberculosis in Bangladesh and Asia Pacific research statistical data information resources AIDS Data HUB. All the published papers on fungal infections in Bangladesh were identified through extensive search of literature...
February 4, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28144615/isolated-ileal-stricture-secondary-to-antigen-negative-gi-histoplasmosis-in-a-patient-on-immunosuppressive-therapy
#9
Kyle M Rowe, Michael Green, Fredy Nehme, Nathan Tofteland
We present a case of antigen-negative disseminated histoplasmosis manifesting as an isolated ileal stricture in a patient on chronic infliximab and methotrexate. Diagnosis can be challenging due to imperfect tests, and this condition should remain in the differential, even with negative testing. Mortality of untreated disseminated histoplasmosis can be as high as 80%.
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28143730/ileocolonic-histoplasmosis-complicating-crohn-disease
#10
Bradley Anderson, Seth Sweetser
No abstract text is available yet for this article.
January 28, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28120605/hemophagocytic-lymphohistiocytosis-mimics-many-common-conditions-case-series-and-review-of-literature
#11
A T Akenroye, N Madan, F Mohammadi, J Leider
Introduction. Hemophagocytic lymphohistiocytosis (HLH), a rare but potentially fatal disease, is characterized by excessive immune activation and cytokine release which stimulates bone marrow macrophages to engulf hematopoietic cells. HLH could be secondary to infections: viral, fungal, and bacterial; malignancies and autoimmune diseases. The diagnosis of HLH is usually delayed due to the presence of non-specific symptoms at presentation. This delay contributes to increased mortality. Cases and review. We present the case of 4 patients who presented with subjective fevers and extreme fatigue...
January 2017: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28112039/scrotal-histoplasmosis-masquerading-as-fournier-s-gangrene
#12
Ritesh Sachdev, Ruchika Kumar Goel, Saurabh Malviya, Shalini Goel, Smeeta Gajendra
No abstract text is available yet for this article.
January 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28094163/granulomatous-histiocytic-dermatitides
#13
Mark R Wick
Granulomas of the skin may be classified in several ways. They are either infectious or non-infectious in character, and they contain areas of necrobiosis or necrosis, or not. Responsible infectious agents may be mycobacterial, fungal, treponemal, or parasitic organisms, and each case of granulomatous dermatitis should be assessed histochemically for those microbes. In the non-infectious group, examples of necrobiotic or necrotizing granulomas include granuloma annulare; necrobiosis lipoidica; rheumatoid nodule; and lupus miliaris disseminates faciei...
December 14, 2016: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28092891/hemophagocytic-lymphohistiocytosis-secondary-to-iatrogenic-disseminated-histoplasmosis
#14
Linda N Dao, Rong He
No abstract text is available yet for this article.
June 2, 2016: Blood
https://www.readbyqxmd.com/read/28086756/concomitant-disseminated-histoplasmosis-and-disseminated-tuberculosis-after-tumor-necrosis-factor-inhibitor-treatment-a-case-report
#15
Juan E Muñoz-Oca, Martha L Villarreal Morales, Aracelis Nieves-Rodriguez, Lemuel Martínez-Bonilla
BACKGROUND: Tumor necrosis factor antagonist inhibitors have transformed the approach to patients with severe autoimmune conditions, such as rheumatoid arthritis. Although the therapy can be highly effective, TNF-α inhibitors are associated with an increased risk of opportunistic infections. CASE PRESENTATION: Here, we report a case of concomitant disseminated histoplasmosis and tuberculosis in a 65-year-old female with rheumatoid arthritis treated with TNF-α inhibitor...
January 13, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28080991/minimizing-fungal-disease-deaths-will-allow-the-unaids-target-of-reducing-annual-aids-deaths-below-500-000-by-2020-to-be-realized
#16
REVIEW
David W Denning
Deaths from AIDS (1 500 000 in 2013) have been falling more slowly than anticipated with improved access to antiretroviral therapy. Opportunistic infections account for most AIDS-related mortality, with a median age of death in the mid-30s. About 360 000 (24%) of AIDS deaths are attributed to tuberculosis. Fungal infections deaths in AIDS were estimated at more than 700 000 deaths (47%) annually. Rapid diagnostic tools and antifungal agents are available for these diseases and would likely have a major impact in reducing deaths...
December 5, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28070489/acute-disseminated-histoplasmosis-with-atypical-lymphocytosis-in-an-immunocompetent-host
#17
Ayman Elbadawi, Hamdy M A Ahmed, Hussain Adly, Mohamed A Elkhouly, Samar Abohamed, Ann R Falsey
65 year-old-male presented with a one-week history of high grade fever, fatigue and confusion which began abruptly two days after a cystoscopy procedure. Past medical history included pulmonary sarcoidosis diagnosed by mediastinal lymph biopsy, diabetes and hypertension. On admission he was febrile and confused with stable vital signs. Initial workup included negative Head CT and lumbar puncture. Blood work revealed normal metabolic and liver function tests with progressive anemia, thrombocytopenia and atypical lymphocytosis of 15-20%...
2017: IDCases
https://www.readbyqxmd.com/read/28070050/-clinical-comparative-analysis-for-pulmonary-histoplasmosis-and-progressive-disseminated-histoplasmosis
#18
Yan Zhang, Xiaoli Su, Yuanyuan Li, Ruoxi He, Chengping Hu, Pinhua Pan
To compare clinical features, diagnosis and therapeutic effect between pulmonary histoplasmosis and progressive disseminated histoplasmosis.
 Methods: A retrospective analysis for 12 cases of hospitalized patients with histoplasmosis, who was admitted in Xiangya Hospital, Central South University during the time from February 2009 to October 2015, was carried out. Four cases of pulmonary histoplasmosis and 8 cases of progressive disseminated histoplasmosis were included. The differences of clinical features, imaging tests, means for diagnosis and prognosis were analyzed between the two types of histoplasmosis...
December 28, 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28063982/proteomic-analysis-of-lysine-succinylation-of-the-human-pathogen-histoplasma-capsulatum
#19
Longxiang Xie, Juan Li, Wanyan Deng, Zhaoxiao Yu, Wenjie Fang, Min Chen, Wanqing Liao, Jianping Xie, Weihua Pan
: Histoplasma capsulatum, the causative agent of histoplasmosis (also called "Darling's disease"), can affect both immunocompetent and immunocompromised hosts. Post-translational protein modification by lysine succinylation (Ksuc) is a frequent occurrence in eukaryote and prokaryote. Recently, the roles of succinylation and its regulatory enzymes in regulating metabolic pathway in bacteria, mammalian and fungus were highlighted. Here, we report the first global profiling of lysine succinylation, with 463 modification sites in 202 proteins from H...
February 10, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28062876/-colon-and-rectum-histoplasmosis-in-a-patient-from-peru
#20
Christian Alcántara Figueroa, Víctor Sánchez Cerna
We report a case of a male patient of 52 years old with a 3 months history of pushing, tenesmus, hematochezia, pain while defecating, lost of 18 kg of weight, fever, fecaloid and purulent discharge through an perianal hole. During the colonoscopy procedure, we found many ulcers in the ascending, transverse and descending colon.We also found an elevated lesion of about 5 cm in the rectum. We used hematoxylin - eosin and Gomori-Grocott stain in the biopsies and identified many microorganisms inside macrophages which were compatible with histoplasmosis...
October 2016: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
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