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Tuberculosis imaging

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https://www.readbyqxmd.com/read/28436741/deep-learning-at-chest-radiography-automated-classification-of-pulmonary-tuberculosis-by-using-convolutional-neural-networks
#1
Paras Lakhani, Baskaran Sundaram
Purpose To evaluate the efficacy of deep convolutional neural networks (DCNNs) for detecting tuberculosis (TB) on chest radiographs. Materials and Methods Four deidentified HIPAA-compliant datasets were used in this study that were exempted from review by the institutional review board, which consisted of 1007 posteroanterior chest radiographs. The datasets were split into training (68.0%), validation (17.1%), and test (14.9%). Two different DCNNs, AlexNet and GoogLeNet, were used to classify the images as having manifestations of pulmonary TB or as healthy...
April 24, 2017: Radiology
https://www.readbyqxmd.com/read/28433200/the-case-against-performing-pleural-biopsies-for-the-aetiological-diagnosis-of-exudates
#2
J M Porcel
In most cases, the etiological diagnosis of pleural exudates does not require a pleural biopsy. However, when it is considered necessary, the biopsy should seldom be conducted using invasive methods such as thoracoscopy. Two paradigmatic examples are pleural tuberculosis and malignant effusions. In many centres, pleural fluid adenosine deaminase measurement has replaced closed pleural biopsies in the diagnosis of tuberculosis. Similarly, pathological and molecular studies on pleural fluid cell blocks or alternatively, image-guided pleural biopsies have drastically reduced the need for thoracoscopy...
April 19, 2017: Revista Clínica Española
https://www.readbyqxmd.com/read/28429346/dynamic-and-contrast-enhanced-ct-imaging-of-lung-carcinoma-pulmonary-tuberculoma-and-inflammatory-pseudotumor
#3
C-R Li, Y-Z Li, Y-M Li, Y-S Zheng
OBJECTIVE: Our main aim was to investigate the effect of dynamic and contrast enhanced CT imaging on differential diagnosis of lung carcinoma, pulmonary tuberculoma, inflammatory pseudotumor, and coexisting pulmonary tuberculosis and lung cancer. PATIENTS AND METHODS: About, 144 patients with pulmonary sarcoidosis as the study subjects were chosen which included: 36 patients with lung carcinoma, 36 patients with pulmonary tuberculoma, 36 patients with inflammatory pseudotumor, 36 patients with coexisting pulmonary tuberculosis and lung cancer...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28429168/bedaquiline-susceptibility-test-for-totally-drug-resistant-tuberculosis-mycobacterium-tuberculosis
#4
Ji-Chan Jang, Yong-Gyun Jung, Jungil Choi, Hyunju Jung, Sungweon Ryoo
This study aimed to provide information that bedaquilline is significantly effective for treatment of totally drug resistant (TDR) Mycobacterium tuberculosis that shows resistant to all first- and second-line drugs-using an innovative disc agarose channel (DAC) system. Time-lapse images of single bacterial cells under culture conditions with different concentrations of bedaquiline were analysed by image processing software to determine minimum inhibitory concentrations (MICs). Bedaquiline inhibited the growth of TDR M...
April 20, 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28427701/multiple-sclerosis-showing-elevation-of-adenosine-deaminase-levels-in-the-cerebrospinal-fluid
#5
Miharu Samuraki, Kenji Sakai, Yasuko Odake, Mitsuhiro Yoshita, Kouichi Misaki, Mitsutoshi Nakada, Masahito Yamada
An 80-year-old man developed dysarthria, quadriplegia, sensory disturbance and ataxia in all limbs. Brain and spinal magnetic resonance imaging (MRI) revealed multiple enhanced lesions. Cerebrospinal fluid (CSF) levels of adenosine deaminase (ADA) remarkably elevated. Tuberculosis DNA was not detected, and tuberculosis was not cultured either in the CSF. Brain biopsy revealed the inflammatory demyelinating lesions. With the diagnosis of multiple sclerosis, corticosteroid therapy resulted in rapid improvement of his symptoms and MRI abnormalities...
April 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28427368/complications-of-miliary-tuberculosis-low-mortality-and-predictive-biomarkers-from-a-uk-cohort
#6
Jonathan Underwood, Fiona Cresswell, Alex P Salam, Alex J Keeley, Charles Cleland, Laurence John, Robert N Davidson
BACKGROUND: Untreated, miliary tuberculosis (TB) has a mortality approaching 100%. As it is uncommon there is little specific data to guide its management. We report detailed data from a UK cohort of patients with miliary tuberculosis and the associations and predictive ability of admission blood tests with clinical outcomes. METHODS: Routinely collected demographic, clinical, blood, imaging, histopathological and microbiological data were assessed for all patients with miliary TB identified from the London TB register from 2008 to 2012 from Northwest London Hospitals NHS Trust...
April 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28422850/tuberculosis-associated-hemophagocytic-lymphohistiocytosis-with-initial-presentation-of-fever-of-unknown-origin-in-a-general-hospital-an-analysis-of-8-clinical-cases
#7
Yun Zhang, Guangyu Liang, Hongli Qin, Yuanjie Li, Xuejun Zeng
The study aimed to investigate the clinical features and prognoses of patients with tuberculosis (TB) who had secondary hemophagocytic lymphohistiocytosis (HLH).Patients first presenting with fever of unknown origin, who were ultimately diagnosed with TB-associated secondary HLH, were assessed retrospectively. We summarized and analyzed clinical manifestations, laboratory examinations, diagnoses, treatments, and prognoses of patients using clinical data, outpatient follow-up, and telephone follow-up in combination with literature review...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28419401/unilateral-pigmented-paravenous-retinochoroidal-atrophy-associated-with-presumed-ocular-tuberculosis
#8
Guillermo Fernandez-Sanz, Ester Carreño, Sonia Mall, Magella M Neveu, Graham E Holder, Dhanes Thomas
This report describes a case of unilateral pigmented paravenous retinochoroidal atrophy (PPRCA) in a patient with low-grade unilateral intermediate uveitis. A 31-year-old woman, previously diagnosed with intermediate uveitis in the right eye (OD) presented to the clinic. Best-corrected visual acuity was 20/20 OD. Fundus examination, fluorescein angiography, autofluorescence, and optical coherence tomography OD were in keeping with a phenotypic diagnosis of PPRCA. Electrophysiology showed severe photoreceptor dysfunction of both the rod and the cone systems OD...
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28417858/-18-f-fdg-pet-ct-imaging-of-thoracic-and-extrathoracic-tuberculosis-in-children
#9
REVIEW
Matthieu Pelletier-Galarneau, Patrick Martineau, Lionel S Zuckier, Xuan Pham, Raymond Lambert, Sophie Turpin
Tuberculosis (TB) remains a major health problem, affecting approximately one-third of the world׳s population. The tubercle bacillus can affect virtually any organ of the human body and if left untreated can lead to severe morbidity and death. Diagnosis of active TB is challenging, especially in children. As a "great imitator," the disease can mimic numerous other pathologies, both clinically and at imaging. Although recognition of active TB is crucial to initiate adequate treatment in a timely fashion, thereby preventing transmission of disease, differentiation of active and quiescent disease is not always straightforward...
May 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28413543/primary-intracranial-choriocarcinoma-presenting-as-a-ring-enhancing-lesion-a-case-report-and-review-of-literature
#10
Mayur Sharma, Vernon Velho, Rachana Binayake, Chandranath Tiwari
We report here a rare case of primary intracranial choriocarcinoma without evidence of tumor elsewhere, presenting as a ring-enhancing lesion managed successfully in our institute (Grant Medical College and Sir J. J. Group of Hospitals, Mumbai, Maharashtra, India). A 22-year-old, right-handed housewife presented with complaints of headache, vomiting, generalized tonic-clonic seizures, and right upper limb weakness of short duration. On neurological examination, the patient was conscious, cooperative, well-oriented in time, place, and person...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28410823/the-case-for-performing-pleural-biopsies-for-the-aetiological-diagnosis-of-exudates-yes
#11
F Rodriguez-Panadero
Pleural biopsies are especially indicated in the following circumstances: a) inconclusive pleural fluid analysis and negative sputum study, if adenosine deaminase (ADA) levels are unavailable; b) suspected multi-resistant tuberculosis; c) a need for differentiating tuberculous pleurisy (if it progresses with neutrophilia) and complicated parapneumonic effusion; d) malignant pleural effusion coexisting with very high ADA levels; e) effusion coexisting with lung cancer and negative pleural cytology; f) suspected mesothelioma; and g) need for implementing re-treatment for patients with relapse after chemotherapy...
April 12, 2017: Revista Clínica Española
https://www.readbyqxmd.com/read/28409551/musculoskeletal-tuberculosis
#12
Michael K Leonard, Henry M Blumberg
Musculoskeletal tuberculosis (TB) accounts for approximately 10% of all extrapulmonary TB cases in the United States and is the third most common site of extrapulmonary TB after pleural and lymphatic disease. Vertebral involvement (tuberculous spondylitis, or Pott's disease) is the most common type of skeletal TB, accounting for about half of all cases of musculoskeletal TB. The presentation of musculoskeletal TB may be insidious over a long period and the diagnosis may be elusive and delayed, as TB may not be the initial consideration in the differential diagnosis...
April 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28408251/a-34-year-old-obese-woman-with-rash-finger-swelling-and-fever
#13
Na Huo, Zhao Wu, Xiaoqin Dong, Feng Li, Nong Lin, He Wang, Hong Zhao
Disseminated tuberculosis first presenting as cutaneous lesion is uncommon and difficult to diagnose on account of its divers clinical forms. We present a 34-year-old obese woman with rash, finger swelling and fever. The patient was firstly manifested by fever and mass in palm and finger, gradually involving multisystems injury. She was diagnosed with disseminated tuberculosis in consideration of multiple system involvement, imaging characteristics, tuberculous granuloma in dermis and positive result of Mycobacterium culture...
April 10, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28403237/evidence-of-neurofibromatosis-type-1-in-a-multi-morbid-inca-child-mummy-a-paleoradiological-investigation-using-computed-tomography
#14
Stephanie Panzer, Holger Wittig, Stephanie Zesch, Wilfried Rosendahl, Sandra Blache, Magdalena Müller-Gerbl, Gerhard Hotz
OBJECTIVE: In this study, an Inca bundle was examined using computed tomography (CT). The primary aim was to determine the preservation status of bony and soft tissues, the sex, the age at the time of death, possible indicators for disease or even the cause of death, as well as the kind of mummification. A secondary aim was to obtain a brief overview of the wrapping in order to gain additional information on the cultural background. MATERIALS AND METHODS: The bundle belongs to the Museum of Cultures in Basel, Switzerland, and was bought in Munich, Germany, in 1921...
2017: PloS One
https://www.readbyqxmd.com/read/28400550/primary-pituitary-tuberculosis-revisited
#15
Fatma Ben Abid, Mohammed Abukhattab, Hanfa Karim, Mohamed Agab, Issam Al-Bozom, Wanis H Ibrahim
BACKGROUND Primary pituitary tuberculosis (in absence of other organ involvement and constitutional symptoms) is an extremely rare disease with total reported cases in the literature fewer than a hundred. Misdiagnosis as pituitary adenoma is common and late diagnosis can result in a permanent endocrine dysfunction and/or long-term neurologic sequelae. CASE REPORT We report on the case of a middle-aged woman who presented with severe headache and left third cranial nerve palsy. Magnetic resonance imaging (MRI) revealed a large pituitary tumor invading the left cavernous sinus...
April 12, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28389790/multidetector-ct-urography-in-urogenital-tuberculosis-use-of-reformatted-images-for-the-assessment-of-the-radiological-findings-a-pictorial-essay
#16
REVIEW
Caterina Gaudiano, Marina Tadolini, Fiorenza Busato, Elisa Vanino, Simone Pucci, Beniamino Corcioni, Rita Golfieri
Urogenital tuberculosis (UGTB) is the most common form of extrapulmonary TB and is responsible for a destructive inflammation of the renal parenchyma and urinary tract often leading to the loss of kidney function. For these reasons, the early diagnosis of this disease, once considered disappeared in developed countries, is very important to establish a prompt and efficient treatment. However, the subtle and non-specific symptoms, often represented by recurrent and persistent lower urinary tract symptoms, can confound and delay the diagnosis...
April 8, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28389634/tuberculous-posterior-sclero-uveitis-with-features-of-vogt-koyanagi-harada-uveitis-an-unusual-case
#17
Dimitrios Kalogeropoulos, George Kitsos, Athanasios Konstantinidis, Constantina Gartzonika, Evgenia Svarna, Konstantinos Malamos, Emmanouil Katsanevakis, Chris Kalogeropoulos
BACKGROUND Ocular tuberculosis (TB) is a clinical entity that presents with a wide range of clinical manifestations. It is regarded as an extremely challenging condition from the point of view of diagnostic approach and calls for early diagnosis and prompt treatment, as it can potentially lead to blindness. CASE REPORT This is a case report of a 32-year-old male from southern India who has been living and working in Greece over the last 10 years and presented with 2-week history of pain and progressive visual impairment of his left eye...
April 8, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28383432/atypical-spinal-tuberculosis-involved-noncontiguous-multiple-segments-case-series-report-with-literature-review
#18
Lin-Nan Wang, Lei Wang, Li-Min Liu, Yue-Ming Song, Yue Li, Hao Liu
In its typical form, spinal tuberculosis (TB) presents as destroyed contiguous vertebral bodies with involvement of intervertebral discs and paravertebral or psoas abscesses. Atypical forms are uncommonly reported. Here, we describe 8 patients with noncontiguous multisegmental spinal TB with no intervertebral disc involvement. From 2013 to 2014, we surgically treated 384 patients with spinal TB to relieve spinal cord compression, re-establish spinal stability, confirm the diagnosis, and debride the TB foci...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28377878/miliary-tuberculosis-in-a-patient-with-tuberculous-mycotic-aneurysm-of-the-abdominal-aorta-case-report-and-review-of-the-literature
#19
Katerina Manika, Christoforos Efthymiou, Georgios Damianidis, Elisavet Zioga, Eleni Papadaki, Kalliopi Lagoudi, Ioannis Kioumis
The combination of miliary tuberculosis and tuberculous mycotic aneurysm has been described in the literature. We present the case of an 84-year-old man who was diagnosed with a mycotic aneurysm of the abdominal aorta and an adjacent soft tissue mass, after a 3- month history of fever. The patient underwent endovascular restoration of the aneurysm and was treated with broad-spectrum antibiotics. One and a half months later the fever relapsed and the chest CT scan revealed findings consistent with miliary tuberculosis and opacities of both upper lobes not present before, while the abdominal CT scan revealed an increase in the size of the para-aortic mass...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28377757/mycobacterial-cultures-contain-cell-size-and-density-specific-sub-populations-of-cells-with-significant-differential-susceptibility-to-antibiotics-oxidative-and-nitrite-stress
#20
Srinivasan Vijay, Rashmi Ravindran Nair, Deepti Sharan, Kishor Jakkala, Nagaraja Mukkayyan, Sharmada Swaminath, Atul Pradhan, Niranjan V Joshi, Parthasarathi Ajitkumar
The present study shows the existence of two specific sub-populations of Mycobacterium smegmatis and Mycobacterium tuberculosis cells differing in size and density, in the mid-log phase (MLP) cultures, with significant differential susceptibility to antibiotic, oxidative, and nitrite stress. One of these sub-populations (~10% of the total population), contained short-sized cells (SCs) generated through highly-deviated asymmetric cell division (ACD) of normal/long-sized mother cells and symmetric cell divisions (SCD) of short-sized mother cells...
2017: Frontiers in Microbiology
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