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https://www.readbyqxmd.com/read/29793060/a-computational-framework-for-the-detection-of-subcortical-brain-dysmaturation-in-neonatal-mri-using-3d-convolutional-neural-networks
#1
Rafael Ceschin, Alexandria Zahner, William Reynolds, Jenna Gaesser, Giulio Zuccoli, Cecilia W Lo, Vanathi Gopalakrishnan, Ashok Panigrahy
Deep neural networks are increasingly being used in both supervised learning for classification tasks and unsupervised learning to derive complex patterns from the input data. However, the successful implementation of deep neural networks using neuroimaging datasets requires adequate sample size for training and well-defined signal intensity based structural differentiation. There is a lack of effective automated diagnostic tools for the reliable detection of brain dysmaturation in the neonatal period, related to small sample size and complex undifferentiated brain structures, despite both translational research and clinical importance...
May 21, 2018: NeuroImage
https://www.readbyqxmd.com/read/29792741/mesenchymal-lesions-of-the-breast-what-radiologists-need-to-know
#2
Debra S Whorms, Michael D C Fishman, Priscilla J Slanetz
OBJECTIVE: Mesenchymal breast tumors originate from the various components of mammary stroma. The aim of this review is to discuss the clinical presentation, imaging appearance, and management of mesenchymal breast lesions. CONCLUSION: Although many mesenchymal tumors exhibit characteristic findings on imaging, others show nonspecific characteristics and require tissue biopsy for diagnosis. An awareness of the clinical and imaging presentation is essential in guiding the differential diagnosis and patient management...
May 24, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29792684/label-free-optical-marker-for-rbc-phenotyping-of-inherited-anaemias
#3
Martina Mugnano, Pasquale Memmolo, Lisa Miccio, Francesco Merola, Vittorio Bianco, Alessia Bramanti, Antonella Gambale, Roberta Russo, Immacolata Andolfo, Achille Iolascon, Pietro Ferraro
The gold standard methods for anaemia diagnosis are the complete blood count and the peripheral smear observation. However, they do not allow for a complete differential diagnosis, which requires biochemical assays, thus being label-dependent techniques. On the other hand, recent studies focus on label-free quantitative phase imaging (QPI) of blood samples to investigate blood diseases by using video-based morphological methods. However, when sick cells are very similar to healthy ones in terms of morphometric features identification of a blood disease becomes challenging even by morphometric as well as QPI...
May 24, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29792263/an-update-on-the-use-of-immunohistochemistry-and-molecular-pathology-in-the-diagnosis-of-pre-invasive-and-malignant-lesions-in-gynecological-oncology
#4
REVIEW
Emmanouil Kalampokas, Fiona Payne, Mahalakshmi Gurumurthy
OBJECTIVE: One of the most common challenges in everyday clinical practice of gynecological oncology is to identify the type and the primary origin of a tumor. This is a crucial step in the management, treatment, prognosis, and survival of patients suffering from a gynecological malignancy. Immunohistochemistry has been widely adopted over the last three decades in pathology laboratories all over the world. Recent advances in our understanding of the differentiation of gynecological tumors based on immunohistochemical expression have resulted in use of immunohistochemistry as a major diagnostic tool in gynecology, for precise tumor classification...
May 21, 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29792228/field-evaluation-of-an-immunochromatographic-test-for-diagnosis-of-cystic-and-alveolar-echinococcosis
#5
Chun-Hua Gao, Jun-Yun Wang, Feng Shi, Dietmar Steverding, Xia Wang, Yue-Tao Yang, Xiao-Nong Zhou
BACKGROUND: The larval stages of the tapeworms Echinocoocus granulosus and Echinococcus multilocularis are the causative agents of human cystic echinococcosis (CE) and human alveolar echinococcosis (AE), respectively. Both CE and AE are chronic diseases characterised by long asymptomatic periods of many years. However, early diagnosis of the disease is important if treatment and management of echinococcosis patients are to be successful. METHODS: A previously developed rapid diagnostic test (RDT) for the differential detection of CE and AE was evaluated under field conditions with finger prick blood samples taken from 1502 people living in the Ganzi Tibetan Autonomous Prefecture, China, a region with a high prevalence for both forms of human echinococcosis...
May 23, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29791958/imaging-patterns-of-muscle-atrophy
#6
Marc-André Weber, Marcel Wolf, Mike P Wattjes
The role of muscle imaging in the diagnosis of inherited and acquired muscle diseases has gained clinical relevance. In particular, magnetic resonance imaging (MRI) is increasingly being used for diagnostic purposes, especially with its capability of whole-body musculature assessment. The assessment and quantification of muscle involvement in muscle diseases can be of diagnostic value by identifying a certain involvement pattern and thus narrowing the differential diagnosis and supporting the clinical diagnosis...
July 2018: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/29791660/potential-role-of-sorafenib-as-neoadjuvant-therapy-in-unresectable-papillary-thyroid-cancer
#7
Debora L S Danilovic, Gilberto Castro, Felipe S R Roitberg, Felipe A B Vanderlei, Fernanda A Bonani, Ricardo M C Freitas, George B Coura-Filho, Rosalinda Y Camargo, Marco A Kulcsar, Suemi Marui, Ana O Hoff
Total thyroidectomy, radioiodine (RAI) therapy, and TSH suppression are the mainstay treatment for differentiated thyroid carcinomas (DTCs). Treatments for metastatic disease include surgery, external-beam radiotherapy, RAI, and kinase inhibitors for progressive iodine-refractory disease. Unresectable locoregional disease remains a challenge, as standard therapy with RAI becomes unfeasible. We report a case of a young patient who presented with unresectable papillary thyroid carcinoma (PTC), and treatment with sorafenib allowed total thyroidectomy and RAI therapy...
May 17, 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29791618/performance-of-children-with-speech-sound-disorders-in-the-dynamic-evaluation-of-motor-speech-skills
#8
Marcia Keske-Soares, Letícia Bitencourt Uberti, Marieli Barichello Gubiani, Marileda Barichello Gubiani, Marizete Ilha Ceron, Karina Carlesso Pagliarin
Purpose To compare performance between children with typical speech acquisition, phonological disorders, and childhood apraxia of speech for the variables overall articulatory accuracy and consistency of the Dynamic Evaluation of Motor Speech Skill - Brazilian Portuguese version (DEMSS-BR). Methods Study participants were 18 children of both genders aged 4 years and 6 months to 5 years and 8 months. The sample was divided into three groups: six children with typical speech acquisition (TSA), six children with phonological disorder (PD), and six individuals with childhood apraxia of speech (CAS)...
2018: CoDAS
https://www.readbyqxmd.com/read/29791592/pathogenesis-of-gallbladder-adenomyomatosis-and-its-relationship-with-early-stage-gallbladder-carcinoma-an-overview
#9
Liwei Pang, Yan Zhang, Yuwen Wang, Jing Kong
The exact pathogenesis of gallbladder adenomyomatosis is still lacking and some controversies over its diagnosis and treatment exist. Originally recognized as a precancerous lesion, adenomyomatosis is currently recognized by recent studies as a benign alteration of the gallbladder that is often associated with cholecystitis and cholecystolithiasis. Gallbladder carcinoma is an extremely malignant disease with a 5-year survival rate of less than 5%. Therefore, it is important to diagnose, differentiate, and confirm the relationship between adenomyomatosis and early-stage gallbladder carcinoma...
2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29791427/-insulinoma-found-in-patient-with-apparent-mental-disorder-a-case-report
#10
José León Chirinos-Revilla, Jenny Gabriela Fernandez-Sivincha
Pancreatic Insulinoma is a neuroendocrine tumor of the beta cells of the islets of Langerhans, has an incidence of 4 cases per 1 000 000 persons. We report the case of a 36-year-old woman with altered behavior associated with melancholy. Psychiatry describes an abnormal mental examination and diagnosed double depression; however, the patient had the Whipple triad and insulin/glucose ratio higher than 0.3. The insulinoma was localized by magnetic resonance imaging and treated with surgery. Insulinomas can mimic mental disorders, making early diagnosis difficult...
January 2018: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/29791269/the-cystic-dilation-of-ventriculus-terminalis-with-neurological-symptoms-three-case-reports-and-a-literature-review
#11
Iraj Lotfinia, Ata Mahdkhah
CONTEXT: The ventriculus terminalis (VT) is a very small ependymal-lined residual lumen in the conus medullaris. It is normally present in all subjects during fetal development. VT in adults appears as an unusual pathology with an uncertain pathogenesis. FINDINGS: In this paper, we described three case reports of symptomatic fifth ventricle cystic dilations. All of them were female and their mean age was 59 years. We treated them surgically and all three patients were improved based on clinical and imaging assessments...
May 23, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29791202/different-mr-features-for-differentiation-of-intrahepatic-mass-forming-cholangiocarcinoma-from-hepatocellular-carcinoma-according-to-tumor-size
#12
Ting Ni, Xiao-Sha Shang, Wen-Tao Wang, Xin-Xing Hu, Meng-Su Zeng, Sheng-Xiang Rao
OBJECTIVE: To identify reliable magnetic resonance (MR) features for distinguishing IMCC from hepatocellular carcinoma (HCC) based on tumor size. METHODS: This retrospective study included 395 patients with pathologically confirmed IMCCs (n = 180) and HCCs (n = 215) who underwent preoperative contrast-enhanced MR imaging including diffusion weighted imaging (DWI). MR features were evaluated and clinical data were also recorded. All the characteristics were compared in small (≤3 cm) and large tumor (>3 cm) groups by univariate analysis and subsequently calculated by multivariable logistic regression analysis...
May 23, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29791171/-diagnosis-of-mody-brief-overview-for-clinical-practice
#13
Jana Urbanová, Ludmila Brunerová, Jan Brož
Maturity Onset Diabetes of the Young (MODY) comprises inherited forms of diabetes mellitus caused by the mutations in the genes involved in the development, differentiation and function of beta-cells. The majority of patients with MODY remains misdiagnosed and erroneously classified as type 1 or type 2 diabetic patients. Correct MODY diagnosis is, however, essential since it enables individualization of treatment, assessment of the prognosis and identification of diabetes among patient´s relatives. Clinical presentation of MODY is highly variable and it could resemble other types of diabetes, thus identification of MODY patients might be difficult...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29790741/entrapment-of-prostate-cancer-circulating-tumor-cells-with-a-sequential-size-based-microfluidic-chip
#14
Xiang Ren, Brittni Foster, Parham Ghassemi, Jeannine S Strobl, Bethany A Kerr, Masoud Agah
Circulating tumor cells (CTCs) are broadly accepted as an indicator for early cancer diagnosis and disease severity. However, there is currently no reliable method available to capture and enumerate all CTCs as most systems require either an initial CTC isolation or antibody-based capture for CTC enumeration. Many size-based CTC detection and isolation microfluidic platforms were presented in the past few years. Here we describe a new size-based, multiple-row cancer cell entrapment device that captured LNCaP-C4-2 prostate cancer cells with >95% efficiency when in spiked mouse whole blood at ~50 cells/mL...
May 23, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29790690/validation-of-the-portuguese-version-of-addenbrooke-s-cognitive-examination-iii-in-mild-cognitive-impairment-and-dementia
#15
Bruno Peixoto, Milene Machado, Patricia Rocha, Carla Macedo, António Machado, Élia Baeta, Gerly Gonçalves, Paulo Pimentel, Emanuela Lopes, Luis Monteiro
BACKGROUND: Cognitive assessment is central to the diagnosis of cognitive impairment and dementia, and it should be performed in all patients in the early stages of the disease. Recently, the 3rd version of Addenbrooke's Cognitive Examination (ACE-III) has been developed in order to improve the previous versions. OBJECTIVES: The aim of this study was to determine the psychometric properties of the Portuguese version of ACE-III, namely: reliability and discriminative validity (sensitivity and specificity) in the identification of mild cognitive impairment (MCI) and dementia, in comparison to other neuropsychological screening tests, as well as to establish its concurrent and divergent validity...
May 16, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29790681/multiple-primary-lung-cancer-a-literature-review
#16
REVIEW
Anna M Romaszko, Anna Doboszyńska
Nowadays, lung cancer is a leading cause of death in both men and women worldwide. There is no clear explanation for its mortality rate. However, it is already known that genetic and environmental factors as well as oncological treatment are involved. As the incidence of lung cancer soars, the number of patients diagnosed with multiple primary lung cancers (MPLC) is also rising. While differentiating between MPLC and intrapulmonary metastasis of lung cancer is important for treatment strategy and prognosis, it is also quite complicated, particularly in the cases with similar histologies...
April 19, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29790606/the-significance-of-spectrophotometric-image-analysis-for-diagnosis-of-the-melanocytic-skin-tumours-in-association-with-their-thickness
#17
K Sakalauskienė, S Valiukevičienė, R Raišutis, G Linkevičiūtė
BACKGROUND: Cutaneous melanoma is a melanocytic skin tumour, which has very poor prognosis while it is highly resistant to treatment and tends to metastasize. Thickness of melanoma is one of the most important biomarker for stage of disease, prognosis and surgery planning. In this study, we hypothesized that the analysis of spectrophotometric (SIAscope) images can provide the information about skin tumour thickness. METHODS: The intensity of blood displacement, "erythematous blush", collagen holes, intensity of collagen, dermal and epidermal melanin were estimated in SIAgraphs...
May 23, 2018: Skin Research and Technology
https://www.readbyqxmd.com/read/29790470/-hidradenocarcinoma-of-the-scrotum-with-lymph-node-metastasis
#18
Maria Inês Simões, Isabel Marcão, Mário Toscano, Luís Borges
Hidradenocarcinoma is a rare neoplasm of the eccrine cells of the sweat glands, usually asymptomatic with slow growing and higher incidence between 50 and 80 years, occurring in both sexes and preferentially located in the palmar, plantar, frontal, axillary and nuchal regions. It has an aggressive behavior, with high rate of local recurrence and distance metastasis, associated with a poor prognosis. We present a case of hidradenocarcinoma of the scrotum manifested by lymph node metastasis through an exercise of clinical and histological differential diagnosis of an inguinal adenopathy in a young adult...
March 29, 2018: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/29790450/opisthotonos-and-unilateral-internal-hydrocephalus-associated-with-aberrant-migration-of-serratospiculum-sp-or-serratospiculoides-sp-in-a-prairie-falcon
#19
Arnaud J Van Wettere, Jaqueline P Kurz, Amanda Wilhelm, Jay Dee Ipsen
A juvenile, wild-caught prairie falcon ( Falco mexicanus) kept for falconry was presented to a veterinary hospital for intermittent opisthotonos and torticollis. Clinical examination, complete blood count, serum biochemistry panel, and fecal analysis were unremarkable. Clinical signs did not resolve, and the bird was euthanized 6 mo after the appearance of clinical signs. Autopsy revealed a mild, unilateral hydrocephalus and nematodes within the thoracic air sac. Histopathology demonstrated mild, unilateral hydrocephalus; scattered glial nodules; meningeal nematode sections; and meningeal and intraventricular embryonated eggs...
May 1, 2018: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29790258/distinguishing-immunohistochemical-features-of-alopecia-areata-from-androgenic-alopecia
#20
Kambiz Kamyab, Mohammad Rezvani, Hasan Seirafi, Samira Mortazavi, Amir Teymourpour, Shahab Abtahi, Maryam Nasimi
BACKGROUND: Distinction between alopecia areata (AA) and androgenic alopecia (AGA) can be made according to clinical presentation and biopsy findings. However, it is sometimes difficult to differentiate them, especially when the diffuse pattern of both AA and AGA is in the differential diagnosis of hair loss in androgen-dependent areas. OBJECTIVES: To evaluate the characteristics of inflammatory cell infiltration using CD3, CD4, CD8, and CD20 antigens, in AA and AGA to find some consistent histological clues for distinguishing these two entities...
May 23, 2018: Journal of Cosmetic Dermatology
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