Results 91 to 100 of about 30,167 (301)

Metastatic renal cell carcinoma presenting as a paranasal sinus mass: the importance of differential diagnosis [PDF]

open access: yes, 2017
Metastases in the paranasal sinuses are rare; renal cell carcinoma is the most common cancer that metastasizes to this region. We present the case of a patient with a 4-month history of a rapidly growing mass of the nasal pyramid following a nasal trauma,
ALTISSIMI, Giancarlo   +3 more
core   +4 more sources

Biofilm Exoproteins From Staphylococcus Species Impede Re‐Epithelialization of Nasal Epithelial Cells During Wound Healing and Cease Ciliary Beat Frequency

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Introduction Chronic rhinosinusitis (CRS) is an inflammatory disease with many different contributing factors, including bacterial infection. CRS patients are typically managed with medical therapies; however, these treatments frequently fail, leaving surgery as the only viable option.
Sintayehu Ambachew   +8 more
wiley   +1 more source

Surgical Experience and Validation of the “Bow Tie” Trilayer Graft Technique for Closure of Anterior Skull Base Defects

open access: yesLaryngoscope Investigative Otolaryngology
Objectives Multiple reconstruction techniques exist to repair defects arising from expanded endonasal approach (EEA) surgeries targeting anterior skull base tumors.
Jacquelyn K. Callander   +7 more
doaj   +1 more source

Clinicopathological features and treatment outcomes of the rare, salivary duct carcinoma of parotid gland

open access: yesJournal of Otolaryngology - Head and Neck Surgery, 2016
Background Salivary ductal carcinoma (SDC) of parotid gland is a rare and aggressive entity; accounting for 1–3 % of all malignant salivary gland tumors, 0.2 % of epithelial salivary gland neoplasms, 0.5 % of salivary gland carcinomas, and 1.1 % of ...
Khalid Hussain Al-Qahtani   +5 more
doaj   +1 more source

Prevention and Management of Bleeding During Endoscopic Approaches to Skull Base Pathologies [PDF]

open access: yes, 2015
The rate of serious permanent morbidity and mortality with endonasal approaches has declined secondary to increased knowledge of the pertinent anatomy, advanced neuroimaging and navigation techniques, better surgical instruments, and improved exposure ...
Amenta, MD, Peter S   +5 more
core   +2 more sources

Reconstrução tridimensional da face nos tumores avançados com invasão da fossa craniana anterior

open access: yesRevista do Colégio Brasileiro de Cirurgiões
OBJETIVO: Analisar as indicações cirúrgicas e o seguimento pós operatório, ressaltando as complicações e efetividade da abordagem multidisciplinar, para os tumores avançados da base do crânio.
Mario Sergio Lomba Galvão   +5 more
doaj   +1 more source

Molecular mechanism of ischemic postconditioning in promoting diabetic ischemic brain injury repair via the microRNA‐34a–BDNF–SIX3 signaling axis

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Diabetes combined with ischemic stroke (DMIS) exacerbates brain infarct size and neuronal damage compared to nondiabetic ischemic stroke (IS). This study reveals that microRNA‐34a (miR‐34a) plays a key role in DMIS pathogenesis: miR‐34a directly targets and suppresses brain‐derived neurotrophic factor (BDNF) and Sine oculis homeobox 3 (SIX3), promoting
Ling Zhao   +5 more
wiley   +1 more source

Endoscopic endonasal transclival resection of a “pontine chordoma”: Technical case report

open access: yesInterdisciplinary Neurosurgery, 2019
Clival chordomas represent very challenging neoplasms, due to their tendency to infiltrate bone, frequent recurrence, involvement of important neurovascular structures, and deep location. Lesions involving the brainstem remain difficult to access through
Weiqi Zhang, MD   +3 more
doaj   +1 more source

Biallelic Disruption of the PTCH1 Gene in Multiple Basal Cell Carcinomas in Japanese Patients with Nevoid Basal Cell Carcinoma Syndrome [PDF]

open access: yes, 2014
The aim of the present study is to address whether the molecular pathogenesis is identical among multiple basal cell carcinomas (BCCs) present in the same nevoid basal cell carcinoma syndrome (NBCCS) patient.
Kishimoto, Koji   +2 more
core   +1 more source

Research progress on biomarkers of traumatic brain injury

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Traumatic brain injury: From primary insult to secondary neuroinflammation and degeneration. Abstract Traumatic brain injury (TBI) is a common disorder of the nervous system and has become a leading cause of death and disability worldwide, imposing a substantial burden on patients and their social circles. Its main symptoms include dyskinesia, language
Xuting Shen   +8 more
wiley   +1 more source

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