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https://www.readbyqxmd.com/read/28437271/surgical-management-of-traumatic-peripheral-osteoma-of-the-mandible
#1
André Bachega Gomes Geron, Vinícius Almeida Carvalho, Jessica Luana Dos Santos, Luciana Yamamoto Almeida, Jorge Esquiche León, Alexandre Elias Trivellato, Cássio Edvard Sverzut
Osteomas are benign osteogenic lesions that result from the proliferation of mature bone. Three variants are known: central, peripheral, and extraskeletal. The peripheral variant is the most common and it most frequently affects the paranasal sinuses, rarely occurring in the jaws. This article describes the case of a 33-year-old white male patient who was referred complaining of facial asymmetry. Clinical examination revealed an increase in volume at the base of the right side of the mandible, hard bony consistency and well delimited, painless to the touch, without signs of infection or intraoral alterations...
April 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28435385/a-new-species-of-poropoea-foerster-from-africa-hymenoptera-chalcidoidea-trichogrammatidae
#2
Stefania Laudonia, Gennaro Viggiani, Silvano Biondi
A new species of Poropoea Foerster (Hymenoptera, Chalcidoidea, Trichogrammatidae) was obtained from eggs of attelabid beetles (Coleoptera: Attelabidae) associated with Combretum sp. (Myrtales, Combretaceae). This species is described from Ogooué-Ivindo province in north-eastern Gabon. The new species is easily distinguished from the known members of the genus Poropoea by the following combination of characters: female antennal club unsegmented, premarginal vein of the fore wing with a nodular premarginal vein and the stigma of the stigmal vein black, the wing lacks the RS1 track; front and hind legs more robust than the middle leg and with coxa and femur markedly enlarged, and ovipositor exserted to one-third of the gaster length...
2017: ZooKeys
https://www.readbyqxmd.com/read/28433999/circadian-plasma-cortisol-measurements-reflect-severity-of-hypercortisolemia-in-children-with-different-etiologies-of-endogenous-cushing-syndrome
#3
Amit Tirosh, Maya B Lodish, Charalampos Lyssikatos, Elena Belyavskaya, Georgios Z Papadakis, Constantine A Stratakis
BACKGROUND: The utility of circadian cortisol variation in estimating the degree of hypercortisolemia in different forms of endogenous Cushing syndrome (CS) has not been evaluated in children yet. METHODS: A retrospective cohort study, including children who underwent surgery due to CS (n = 115), was divided into children with a pituitary adenoma (Cushing disease) (n = 88), primary adrenal CS (n = 21), or ectopic adrenocorticotropin- or corticotropin-releasing hormone (ACTH-/CRH)-secreting tumors (n = 6)...
April 21, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28432675/transoral-thyroidectomy-advantages-and-limitations
#4
G Dionigi, R P Tufano, J Russell, H Y Kim, E Piantanida, A Anuwong
In this opinion paper of the Journal of Endocrinological Investigation, leading experts in the field report on their current clinical experience with a novel approach for thyroid gland surgery, namely, "transoral thyroidectomy" (TOT). This feasible and novel surgical procedure does not require visible incisions and is, therefore, a truly scarless surgery. Patients meeting the following criteria can be considered as candidates for TOT: (a) an ultrasonographically (US) estimated thyroid diameter ≤10 cm; (b) US-estimated gland volume ≤45 mL; (c) nodule size ≤50 mm; (d) presence of a benign tumor such as a thyroid cyst or a single- or multi-nodular goiter; (e) Bethesda 3 and/or 4 category and (f) papillary microcarcinoma without the evidence of metastasis...
April 21, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28431711/nodular-fasciitis-of-the-posterior-chest-wall-with-bone%C3%A2-invasion-mimicking-a-malignant-neoplasm
#5
Nicholas J Olson, David J Finley, Michael J Tsapakos, Sandra L Wong, Konstantinos Linos
Nodular fasciitis is a self-limiting benign fibroblastic/myofibroblastic proliferation, which typically presents as a rapidly growing mass resembling an aggressive lesion clinically. It can also mimic a sarcoma histologically, hence the frequent characterization as "pseudosarcoma." We describe a case of a 53-year-old man who presented with a posterior chest wall mass that on imaging showed erosion into the adjacent ribs. After resection, the diagnosis of nodular fasciitis was rendered. Bone erosion by nodular fasciitis is extremely rare and can resemble a malignant neoplasm radiologically...
May 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28430287/dysembryoplastic-neuroepithelial-tumour-insight-into-the-pathology-and-pathogenesis
#6
Iwona Sontowska, Ewa Matyja, Jacek Malejczyk, Wieslawa Grajkowska
<i>Dysembryoplastic neuroepithelial tumour (DNT) is categorized as a benign glioneuronal neoplasm affecting children and young adults with chronic epileptic seizures. It is characterized by predominant intracortical localization and nodular architecture. Dysembryoplastic neuroepithelial tumour usually demonstrates a distinctive morphological pattern with a specific glioneuronal element but occasionally, its morphological picture is heterogeneous and unspecific. Thus, considering the morphology of DNT, three different histopathological subtypes are distinguished: simple, complex, and non-specific and diffuse...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28429679/mycobacterium-avium-complex-disease
#7
Charles L Daley
Despite the ubiqitous nature of Mycobacterium avium complex (MAC) organisms in the environment, relatively few of those who are infected develop disease. Thus, some degree of susceptibility due to either underlying lung disease or immunosuppression is required. The frequency of pulmonary MAC disease is increasing in many areas, and the exact reasons are unknown. Isolation of MAC from a respiratory specimen does not necessarily mean that treatment is required, as the decision to treatment requires the synthesis of clinical, radiographic, and microbiologic information as well as a weighing of the risks and benefits for the individual patient...
April 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28428218/gain-of-function-mutation-in-filamin-a-potentiates-platelet-integrin-%C3%AE-iib%C3%AE-3-activation
#8
Eliane Berrou, Frédéric Adam, Marilyne Lebret, Virginie Planche, Patricia Fergelot, Odile Issertial, Isabelle Coupry, Jean-Claude Bordet, Paquita Nurden, Dominique Bonneau, Estelle Colin, Cyril Goizet, Jean-Philippe Rosa, Marijke Bryckaert
OBJECTIVE: Dominant mutations of the X-linked filamin A (FLNA) gene are responsible for filaminopathies A, which are rare disorders including brain periventricular nodular heterotopia, congenital intestinal pseudo-obstruction, cardiac valves or skeleton malformations, and often macrothrombocytopenia. APPROACH AND RESULTS: We studied a male patient with periventricular nodular heterotopia and congenital intestinal pseudo-obstruction, his unique X-linked FLNA allele carrying a stop codon mutation resulting in a 100-amino acid-long FLNa C-terminal extension (NP_001447...
April 20, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28427752/spontaneously-arising-tumours-and-tumour-like-lesions-of-the-cervix-and-uterus-in-83-pet-guinea-pigs-cavia-porcellus
#9
C Laik-Schandelmaier, R Klopfleisch, S Schöniger, G Weiffenbach, M Staudacher, H Aupperle
Tumours and tumour-like lesions are rare findings in the genital system of guinea pigs. The aim of the present study was to characterize nodular lesions in the cervix and uterus of guinea pigs submitted for histopathological diagnosis. Samples from 83 pet animals were investigated. Cases included 64 surgically excised masses including complete uteri (n = 37), parts from uteri containing masses (n = 8), complete masses (n = 12) or samples from masses (n = 7) and 19 complete necropsy examinations. In 55 of the cases, only solitary changes were observed; in 28 cases two or more lesions were diagnosed...
April 17, 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28427542/recurrent-respiratory-papillomatosis-a-state-of-the-art-review
#10
REVIEW
Helena Ribeiro Fortes, Felipe Mussi von Ranke, Dante Luiz Escuissato, Cesar Augusto Araujo Neto, Gláucia Zanetti, Bruno Hochhegger, Carolina Althoff Souza, Edson Marchiori
Recurrent respiratory papillomatosis (RRP) is a benign disease of the upper aero-digestive tract caused by human papillomavirus (HPV) infection, which affects children and young adults. The aim of this review is to describe the main etiological, epidemiological, clinical, diagnostic, and treatment aspects of RRP. Most infections in children occur at birth, during passage through the birth canals of contaminated mothers. In adults, HPV is transmitted sexually. Papillomas usually appear as exophytic nodules, primarily in the larynx, but occasionally involving the nasopharynx, tracheobronchial tree, and pulmonary parenchyma...
May 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28427406/latent-membrane-protein-1-lmp1-expression-in-hodgkin-lymphoma-and-its-correlation-with-clinical-and-histologic-parameters
#11
Atif Ali Hashmi, Zubaida Fida Hussain, Kashif Ali Hashmi, Muhammad Irfan Zafar, Muhammad Muzzammil Edhi, Naveen Faridi, Mehmood Khan
BACKGROUND: Hodgkin lymphoma is one of the most prevalent lymphoproliferative disorders in Pakistan; however, no risk factors for this disease have yet to be established in our population. Epstein-Barr virus (EBV) is a well-known risk factor for Hodgkin lymphoma in endemic regions of the world; however, frequency of its association in our population has not been widely studied. Latent membrane protein 1 (LMP1) expression by immunohistochemistry (IHC) is a surrogate marker of EBV in Hodgkin lymphoma...
April 20, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28426899/ultrasonographic-features-of-intravascular-fasciitis-case-report-and-review-of-the-literature
#12
K Takahashi, T Yanagi, K Imafuku, S Kitamura, Y Inamura-Takashima, Y Yamaguchi, H Hata, H Shimizu
Intravascular fasciitis (IF), a variant of nodular fasciitis (NF), is a reactive intravascular proliferation of myofibroblasts. IF is an indolent subcutaneous or intramuscular nodule that is most commonly found on the extremities, head and neck.(1, 2) This article is protected by copyright. All rights reserved.
April 20, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28425756/cns-hemangioblastomatosis-in-a-patient-without-von-hippel-lindau-disease
#13
Arie Franco, Peter Pytel, Rimas V Lukas, Rupa Chennamaneni, John M Collins
We report on a case of disseminated CNS hemangioblastoma, also referred to as hemangioblastomatosis, involving the supratentorial compartment and the entire spine. The patient presented with new onset headache, gait difficulties and memory deficits many years following resection of a hemangioblastoma from the cerebellum. The patient's family history was negative for von Hippel-Lindau (VHL) disease, and his personal history was negative for any additional VHL-defining lesions. Imaging revealed extensive dural caking and nodularity both supratentorially and in the spine, along with scattered parenchymal tumors showing a more typical appearance for hemangioblastoma...
April 2017: CNS Oncology
https://www.readbyqxmd.com/read/28425402/what-is-changing-in-indications-and-treatment-of-focal-nodular-hyperplasia-of-the-liver-is-there-any-place-for-surgery
#14
Aristotelis Perrakis, Nikolaos Vassos, Robert Grützmann, Roland S Croner
Focal nodular hyperplasia (FNH) is a common benign liver tumor, which occurs in the vast majority of the cases in young women. FNH represents a polyclonal lesion characterized by local vascular abnormalities and is a truly benign lesion without any potential for malignant transformation. A retrospective single institution analysis of 227 FNH patients, treated from 1990 to 2016 and a review of studies reporting surgical therapy of overall 293 patients with FNH was performed. Indications for resection with a focus on diagnostic workup, patient selection, surgical mode and operative mortality and morbidity have been analysed...
May 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28424594/overexpression-of-human-sod1-leads-to-discrete-defects-in-the-cerebellar-architecture-in-the-mouse
#15
Pegah Afshar, Niloufar Ashtari, Xiaodan Jiao, Maryam Rahimi-Balaei, Xiaosha Zhang, Behzad Yaganeh, Marc R Del Bigio, Jiming Kong, Hassan Marzban
The human superoxide dismutase 1 (SOD1) gene is responsible for neutralizing supercharged oxygen radicals within the cell. Mutation in SOD1 gene causes amyotrophic lateral sclerosis (ALS). Recent studies have shown involvement of the cerebellum in ALS, although the cerebellar contribution in SOD1 transgenic mice remains unclear. Using immunohistopathology, we investigated the Purkinje cell phenotype in the vermis of the SOD1 transgenic mice cerebellum. Calbindin 1 (Calb1) and three well-known zone and stripe markers, zebrin II, HSP25, and PLCβ4 have been used to explore possible alteration in zone and stripe...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28422852/stage-i-lung-adenocarcinoma-the-value-of-quantitative-ct-in-differentiating-pathological-subtypes-and-predicting-growth-of-subsolid-nodules
#16
Xianqun Xu, Kaisong Wu, Yanyan Zhao, Liejun Mei
The aim of this study was to investigate feasibility of quantitative computed tomography (CT) measurements in predicting invasiveness and growth of nodular ground glass opacities (nGGOs).A set of 203 patients (group A) with nGGOs that were confirmed stage-I adenocarcinomas and 79 patients (group B) with nGGOs that were completely followed up were included. Lesions diameters, volume (VOL), maximum (MAX), mean (MEN), and standard deviation (STD) of CT attenuation were measured. P53 labeling index (LI) was evaluated through immunohistochemistry in group-A patients...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28422310/adult-onset-cystic-fibrosis-liver-disease-diagnosis-and-characterization-of-an-underappreciated-entity
#17
Christopher Koh, Sasan Sakiani, Pallavi Surana, Xiongce Zhao, Jason Eccleston, David E Kleiner, David Herion, T Jake Liang, Jay H Hoofnagle, Milica Chernick, Theo Heller
BACKGROUND & AIMS: Cystic fibrosis liver disease (CFLD), a leading cause of death in cystic fibrosis (CF), is mostly described in pediatric populations. Adult-onset CFLD lacks sufficient characterization and diagnostic tools. METHODS: A cohort of CF patients without CFLD during childhood were followed for up to 38 years with serologic testing, imaging, and noninvasive fibrosis markers. Historical CFLD diagnostic criteria were compared with a newly proposed CFLD criteria...
April 19, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28420836/high-detection-rates-of-urine-mycobacterium-tuberculosis-in-patients-with-suspected-miliary-tuberculosis
#18
Toshinobu Yokoyama, Takashi Kinoshita, Masaki Okamoto, Kazuko Matsunaga, Tomoko Kamimura, Masaharu Kinoshita, Toru Rikimaru, Kazuhito Taguchi, Tomoaki Hoshino, Tomotaka Kawayama
Objective The utility of detecting Mycobacterium tuberculosis in urine samples from patients with pulmonary tuberculous with diffuse small nodular shadows (suspected miliary tuberculosis (MTB)) is still unclear in Japan. A retrospective cross-sectional study was conducted to investigate the detection rates of M. tuberculosis in urine of patients with suspected MTB. Methods Among 687 hospitalized patients with tuberculosis, 45 with culture-confirmed suspected MTB and the data of culture and polymerase chain reaction (PCR) for M...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28420007/accessory-spleen-in-the-greater-omentum-embryology-and-revisited-prevalence-rates
#19
Nikita Gill, Areeba Nasir, Jennifer Douglin, Bettina Pretterklieber, Hanno Steinke, Michael Pretterklieber, Sebastian Cotofana
PURPOSE: To investigate in a large sample the prevalence rates of accessory spleens located in the greater omentum and to explain the embryological background and the vascular supply of this rare congenital disorder. METHODS: Evaluation of the presence of accessory spleens located in the greater omentum was performed in 5 different international anatomical centers investigating a total of 1,045 body donors. Arterial and venous blood supply and the precise location of the respective vasculature within the splenic ligaments are described based on dissection of this rare condition in a male specimen...
April 19, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28418952/fdg-pet-ct-findings-of-nodular-sclerosis-subtype-classic-hodgkin-lymphoma-presented-as-mediastinal-nodal-lesions-at-onset-but-as-predominant-osseous-disease-at-relapse
#20
Kun Zheng, Hongming Zhuang
Nodular sclerosis-subtype classic Hodgkin lymphoma in general manifests as bulky mediastinal lymphadenopathy but very rarely involves bones. We report FDG PET/CT findings of a 19-year-old man with pathology-proven, nodular sclerosis-type classic Hodgkin lymphoma. His initial FDG PET/CT scan at the diagnosis showed only hypermetabolic lymphadenopathy in the mediastinum. However, the FDG PET/CT acquired when the disease recurred 20 months later showed predominant osseous disease without additional nodal lesions outside the mediastinum...
April 17, 2017: Clinical Nuclear Medicine
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