نتایج جستجو برای: hypopharynx
تعداد نتایج: 1889 فیلتر نتایج به سال:
Spindle cell carcinomas are biphasic tumors of monoclonal origin with mesenchymal component proved to be the dedifferentiated forms of conventional squamous cell carcinomas. This unusual variant of squamous cell carcinoma usually presents in the larynx, but are also infrequently reported in the gingiva, tongue, lips, hypopharynx and nasal cavity. We report a spindle cell carcinoma of buccal muc...
The association of education, tobacco smoking, alcohol consumption, and interleukin-2 (IL-2 +114 and -384) and -6 (IL-6 -174) DNA polymorphisms with head and neck squamous cell carcinoma (HNSCC) was investigated in a cohort study of 445 subjects. IL-2 and IL-6 genotypes were determined by real-time PCR. Cox regression was used to estimate hazard ratios (HR) and 95% confidence intervals (95%CI) ...
Introduction: Liposarcomas are considered the most common type of soft tissue sarcoma in adults. They represent approximately 20% of all mesenchymal malignancies and most frequently involve the retroperitoneum, trunk and extremities. Hypopharyngeal localisation of a liposarcoma is extremely rare. To determine the prevalence of liposarcomas of the hypopharynx, we conducted a systematic review of...
yngectomy for laryngeal cancer 3 years earlier was diagnosed with superficial esophageal squamous cell carcinoma (ESCC). In addition, a slightly elevated le− sion (1.6 cm) was detected synchronously in the posterior wall of the hypopharynx (l" Fig. 1 a). Using a narrow−band ima− ging (NBI) system with magnifying en− doscopy (GIF TYPE H260Z; Olympus), this lesion displayed a clearly demarcated b...
OBJECTIVE To compare outcome of patients with advanced laryngeal hypopharyngeal squamous cell carcinoma treated surgically or with chemotherapy and/or radiotherapy. STUDY DESIGN Observational study. PLACE AND DURATION OF STUDY The Aga Khan University Hospital, Karachi, from January 2000 to December 2005. METHODOLOGY Medical records of already treated stage-III and IV squamous cell carcino...
BACKGROUND This study aimed to determine whether reducing the expiratory pressure during nasal positive airway pressure for reasons of comfort causes a substantial decrease in the upper airway calibre. METHODS Eight patients with obstructive sleep apnoea were studied. Continuous computed tomography (each run lasting 12 seconds) was used to measure minimum and maximum pharyngeal cross sectiona...
Traditional cephalometrics (1-3), though having the limitation of any two-dimensional (2D) method, has several advantages, including low cost, easy access and reduced invasiveness. Although computerized tomography (CT) has many advantages as a measuring tool for three-dimensional (3D) airway size (4-8), it is time consuming and expensive for· routine clinical use. However, 3D color reconstructi...
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