Nasopharynx

Xem 1-12 trên 12 kết quả Nasopharynx
  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Radiation Oncology cung cấp cho các bạn kiến thức về ngành y đề tài: SemiDecreased 3D observer variation with matched CT-MRI, for target delineation in Nasopharynx cancer...

    pdf8p toshiba9 14-10-2011 12 1   Download

  • Harrison's Internal Medicine Chapter 84. Head and Neck Cancer Head and Neck Cancer: Introduction Epithelial carcinomas of the head and neck arise from the mucosal surfaces in the head and neck area and typically are squamous cell in origin. This category includes tumors of the paranasal sinuses, the oral cavity, and the nasopharynx, oropharynx, hypopharynx, and larynx. Tumors of the salivary glands differ from the more common carcinomas of the head and neck in etiology, histopathology, clinical presentation, and therapy. Thyroid malignancies are described in Chap. 335.

    pdf5p konheokonmummim 03-12-2010 49 7   Download

  • Pathology of the Head and Neck is an easy sounding title for a complex subject matter. This title stands for an accumulation of diverse diseases occurring in different organs whose relationship to each other consists in the fact that they are located between the base of the skull and the thoracic aperture.

    pdf334p maket1311 16-10-2012 46 7   Download

  • Clinical Presentation and Differential Diagnosis Most head and neck cancers occur after age 50, although these cancers can appear in younger patients, including those without known risk factors. The manifestations vary according to the stage and primary site of the tumor. Patients with nonspecific signs and symptoms in the head and neck area should be evaluated with a thorough otolaryngologic exam, particularly if symptoms persist longer than 2–4 weeks. Cancer of the nasopharynx typically does not cause early symptoms.

    pdf5p konheokonmummim 03-12-2010 36 5   Download

  • Table 84-1 TNM Classification for Head and Neck Cancer (Except Nasopharyngeal) Primary Tumor Site T Grade Oropharynx Hypopharynx T1 0–2 cm 0–2 cm T2 2.

    pdf5p konheokonmummim 03-12-2010 54 5   Download

  • Table 84-2 Definition of TNM–Nasopharynx Primary Tumor (T) Stage Grouping TX Cannot assessed be 0 Stage Tis N0 M0 T0 No evidence I Stage T1 N0 M0 Tis Carcinoma in situ IIA Stage T2a N0 M0 T1 Tumor confined IIB Stage T1 N1 M0 to the nasopharynx T2 Tumor extends to soft tissues T2 N1 M0 T2a extends to Tumor the T2a N1 M0 oropharynx and/or nasal cavity parapharyngeal extension w/o T2b Any tumor with extension parapharyngeal T2b N1 M0 T3 Tumor involves T2b N1 M0 bony structures and/or paranasal sinuses T4 Tumor intracranial with e...

    pdf5p konheokonmummim 03-12-2010 30 4   Download

  • Other Nondiphtherial Corynebacteria C. xerosis is a human commensal found in the conjunctiva, nasopharynx, and skin. This nontoxigenic organism is occasionally identified as a source of invasive infection in immunocompromised or postoperative patients and prosthetic joint recipients. C. striatum is found in the anterior nares and on the skin, face, and upper torso of normal individuals. Also nontoxigenic, this organism has been associated with invasive opportunistic infections in severely ill or immunocompromised patients. C.

    pdf8p colgate_colgate 21-12-2010 37 4   Download

  • Epithelial carcinomas of the head and neck arise from the mucosal surfaces in the head and neck area and typically are squamous cell in origin. This category includes tumors of the paranasal sinuses, the oral cavity, and the nasopharynx, oropharynx, hypopharynx, and larynx. Tumors of the salivary glands differ from the more common carcinomas of the head and neck in etiology, histopathology, clinical presentation, and therapy.

    pdf9p socolanong 25-04-2012 25 3   Download

  • Harrison's Internal Medicine Chapter 136. Meningococcal Infections Definition Neisseria meningitidis is the etiologic agent of two life-threatening diseases: meningococcal meningitis and fulminant meningococcemia. More rarely, meningococci cause pneumonia, septic arthritis, pericarditis, urethritis, and conjunctivitis. Most cases are potentially preventable by vaccination. Etiologic Agent Meningococci are gram-negative aerobic diplococci. Unlike the other neisseriae, they have a polysaccharide capsule.

    pdf5p colgate_colgate 21-12-2010 37 2   Download

  • Nonimmunologic Mechanisms Nonimmunologic mechanisms that protect against pneumonia include filtration of air as it passes through the nasopharynx, the glottal reflex, laryngeal closure, the cough reflex, clearance of organisms from the lower airways by ciliated cells, and ingestion by pulmonary macrophages and PMNs of small bacterial inocula that manage to reach alveolar spaces. Respiratory virus infection, chronic pulmonary disease, or heart failure compromises these mechanisms, predisposing to the development of pneumococcal pneumonia.

    pdf5p colgate_colgate 21-12-2010 35 2   Download

  • Neisseria meningitidis is the etiologic agent of two life-threatening diseases: meningococcal meningitis and fulminant meningococcemia. More rarely, meningococci cause pneumonia, septic arthritis, pericarditis, urethritis, and conjunctivitis. Most cases are potentially preventable by vaccination. Etiologic Agent Meningococci are gram-negative aerobic diplococci. Unlike the other neisseriae, they have a polysaccharide capsule. They are transmitted among humans—their only known habitat—via respiratory secretions.

    pdf19p ozon_ozon 26-04-2012 21 2   Download

  • In 1887, Anton Weichselbaum, a Viennese doctor, was the first to report the isolation of meningococci from patients with meningitis (1). Shortly after, came the first description of lumbar puncture in living patients (2), leading to the isolation of meningococci from acute cases of meningitis. Three years later, Kiefer grew meningococci from the nasopharynx of cases of meningococcal disease, and from their contacts (3), a finding of immense significance in advancing understanding of the epidemiology and pathogenesis of the disease.

    pdf662p taurus23 27-09-2012 26 2   Download

CHỦ ĐỀ BẠN MUỐN TÌM

Đồng bộ tài khoản