infectious mediastinitis

Histoplasma-mediated pericarditis is rare, and it occurs due to host-mediated inflammatory or immune response to adjacent mediastinal adenitis or pneumonitis. It is usually self-limited and rarely progresses to a disseminated infection in an immunocompetent individual. In rare instances, it can occur without pulmonary manifestations, making the diagnosis challenging given the broad list of differentials that can be considered as in our patient who initially presented with an isolated pericardial effusion with tamponade needing emergent pericardiocentesis...

BACKGROUND: Infectious aortic disease is a rare and fatal disease, that requires the appropriate intervention. An accurate diagnosis should be promptly established. However, this is difficult because the clinical manifestations of this disease vary and are non-specific. CASE PRESENTATION: (CASE 1) An 87-year-old male, presenting with generalized malaise and weight loss, was admitted for further examination. A chest computed tomography (CT) showed mediastinal emphysema...

Gastrointestinal manifestations in systemic fungal infection are not uncommon; however, obstructive jaundice due to lymphadenopathy is considered rare. We present a case of a 16-year-old male patient who presented with painless jaundice. Laboratory tests revealed direct hyperbilirubinemia with cholestatic liver injury. Chest and abdominal computed tomography showed mediastinal and porta hepatis lymphadenopathy, with severe biliary ductal dilatation proximal to an obstructing lymph node near the head of the pancreas...

UNLABELLED: Chronic schistosomiasis affects either the genitourinary or gastrointestinal tract. Rarely, schistosomes cause ectopic disease, such as in the case of a South African woman from a non-endemic province, who presented with suspected pericardial tamponade because of tuberculosis. However, histology and polymerase chain reaction from pericardial biopsy confirmed Schistosoma haematobium. A finding of mediastinal non-Hodgkin lymphoma came to light when our patient's clinical condition unexpectedly deteriorated...

Alveolar echinococcosis (AE), caused by Echinococcus multilocularis, is an aggressive and potentially critical infestation that primarily affects the liver and can metastasize to any part of the body. We herein report two cases of echinococcosis, which could be differentiated from malignancy on imaging studies, with infections of the liver and mediastinal lymph nodes, and also associated with systemic disseminated lesions. AE is a very invasive infectious disease, and in order to detect such lesions at an early stage when they are still resectable, it is necessary to understand the characteristic imaging findings and determine the patient's current medical history...

Histoplasmosis, a fungal infection caused by the inhalation of Histoplasma capsulatum conidia spores, has been shown to cause disseminated disease in immunocompromised individuals. Disseminated histoplasmosis manifests as multi-system involvement including pulmonary and/or neurological disease. Imaging findings, such as pulmonary focal infiltrates, cavitary nodules, mediastinal, and hilar lymphadenopathy, are common. Here, we report a rare case of disseminated histoplasmosis in a 58-year-old immunocompetent male with no occupational exposure...

Endobronchial ultrasound-guided transbronchial needle aspiration (EBUSTBNA) is a minimally invasive diagnostic tool used for the evaluation of mediastinal lymphadenopathy. It is a safe procedure, but complications such as bleeding and infection may occur. We report a case of a patient who developed a subcutaneous abscess abscess and mediastinitis after EBUSTBNA. A 75-year-old male with a history of right nephrectomy due to renal cell carcinoma and lung adenocarcinoma history underwent EBUS-TBNA for the evaluation of a right upper paratracheal lymph node...

Cavitary pulmonary coccidioidomycosis is rare diagnosis with an incidence of 13% to 15% of pulmonary coccidioidomycosis cases. High clinical suspicion is necessary in the setting of geographical location endemicity. We present a 49-year-old male who has lived in the Coachella Valley of California for several years, with a medical history of uncontrolled type 2 diabetes who noted 1 week of right-sided chest pain with shortness of breath, fever, chills, night sweats, and weight loss. A chest X-ray revealed a 4- to 5-cm mass in the right lung...

BACKGROUND: Deep neck infection (DNI) is a serious infectious disease, and descending mediastinitis is a fatal infection of the mediastinum. However, no study has applied artificial intelligence to assess progression to descending mediastinitis in DNI patients. Thus, we developed a model to assess the possible progression of DNI to descending mediastinitis. METHODS: Between August 2017 and December 2022, 380 patients with DNI were enrolled; 75% of patients ( n = 285) were assigned to the training group for validation, whereas the remaining 25% ( n = 95) were assigned to the test group to determine the accuracy...

BACKGROUND: Surgical site infection (SSI) is a major complication of pediatric cardiac surgery. If the risk of developing SSI can be predicted based on the patient's preoperative background, appropriate preoperative management to prevent the development of SSI can be achieved. METHODS: We retrospectively studied cases for patients younger than 7 years of age among surgeries performed through a median sternotomy at Kagoshima University Hospital from April 2011 to March 2021...

BACKGROUND: Postoperative sternal infection caused by Mycobacterium abscessus (M. abscessus) is rare, but associated with a high 2-year mortality rate of 40%. Decision-making around treatment strategy is challenging. Here, we present a successfully treated case of postoperative M. abscessus sternal infection with multiple disseminated lymphadenitis. CASE PRESENTATION: The patient, an 80-year-old woman with anterior mediastinal tumor and myasthenia gravis, underwent extended thymectomy under median sternotomy...

INTRODUCTION: Mediastinal infection is a persistent and difficult widespread infectious disease caused by secondary complications of adjacent organs. It spreads easily and is often misdiagnosed because of the lack of typical manifestations. MATERIAL AND METHODS: To highlight the clinical features, medical and surgical strategy of descending necrotizing mediastinitis we performed a retrospective study of 25 documented cases during a 10-year period at our hospital, all treated surgically, 10 from the ORL department and 15 from our thoracic surgery department...

BACKGROUND: Melioidosis, caused by the Gram-negative bacterium Burkholderia pseudomallei , has a major global health impact and a wide range of different disease manifestations. Histopathological descriptions of melioidosis remain limited. Granulomatous inflammation with multinucleated giant cells are considered classic features. We aim to present a graphical overview of histopathological manifestations of melioidosis, serving as an aid in diagnosing this disease. METHODS: We performed a retrospective international multicenter laboratory-based analysis of formalin-fixed paraffin-embedded (FFPE) tissue from culture-confirmed melioidosis autopsy and biopsy cases...

Necrotizing infections of deep neck spaces are a group of life-threatening infectious diseases acquired through trauma or as a descending infection from an odontogenic source. The isolation of pathogens is unusual because of the anaerobic nature of the infection; however, one way to achieve this is through the use of automated microbiological methods like matrix-assisted laser desorption/ionization and time-of-flight (MALDI-TOF) following standard microbiology protocols for analyzing samples from potential anaerobic infections...

UNLABELLED: Esophageal tuberculosis is a rare presentation of a common infectious disease. It may occur as a primary infection of the esophagus or as a secondary spread mostly from caseating mediastinal lymph nodes. The clinical diagnosis of the condition is presumed to be complex, owing to nonspecific biopsy findings, failure of isolation of bacilli, and a lack of predisposing conditions in patients. This study aims to present a rare condition of esophageal tuberculosis secondary to mediastinal lymphadenitis and highlights a unique modality of diagnosis of the condition, especially in a resource strained setting...

OBJECTIVES: Visceral leishmaniasis remains a deadly parasitic disease with diagnostic complexities. Currently, point-of-care chest imaging is gaining momentum in the diagnosis of infectious diseases. Respiratory symptoms are common in visceral leishmaniasis. Here we aimed to systematically synthesize the evidence on the utility of chest imaging on the diagnosis and management of patients with visceral leishmaniasis. METHODS: We searched PubMed, Scopus, Web of Science, ScienceDirect, and Google Scholar databases for studies reporting chest imaging findings in patients with visceral leishmaniasis, published in English from database inception to November 2022...

A 12-year-old female presented with weight gain, edema, and shortness of breath. Laboratory and urine studies confirmed nephrotic syndrome and presence of a mediastinal mass, identified as a mature teratoma after resection. Nephrotic syndrome persisted despite resection and renal biopsy confirmed minimal change disease, which ultimately responded to steroid treatment. She had two relapses of nephrotic syndrome after vaccination administration, both of which occurred within eight months of tumor resection and were responsive to steroids...

T-lymphoblastic lymphoma (T-LBL) is a rare subtype of non-Hodgkin's lymphoma with a higher incidence in children than adults. T-LBL often presents with multiple lymph node enlargements or mediastinal masses, which can cause local compression symptoms, and is frequently misdiagnosed as an infectious disease at an early stage. By summarizing a recently experienced case of T-LBL in a patient with a suspected infection, with an analysis of clinical features and diagnostic methods, the aim of the present study was to provide more information on the early diagnosis of tumors in patients suspected to have an infection...

Osteoarticular infections (OAIs) caused by Gemella morbillorum ( G. morbillorum ) are a rare clinical entity. This study aimed to review all published cases of OAI due to G. morbillorum. A systematic review of PubMed, Scopus, and Cochrane Library was conducted to report the demographic and clinical characteristics, microbiological data, management, and outcome of OAIs caused by G. morbillorum in the adult population. A total of 16 studies reporting on 16 patients were included in this review. Eight patients had arthritis and eight patients had osteomyelitis/discitis...

Mediastinitis after surgery for congenital heart disease has a great impact on morbidity and mortality. However, there are scarce studies focused on the epidemiology of postsurgical mediastinitis in pediatric patients. In this 18-year period retrospective study, the cumulative incidence of mediastinitis was low: 0.64%, (95% confidence interval: 0.36-1.1). Gram-negative bacilli were common (35%). The mortality rate was 7.1%, associated with fungal infection.