نتایج جستجو برای: ethmoid
تعداد نتایج: 1197 فیلتر نتایج به سال:
SINCE the early records of aspergillus infections of the upper respiratory tract in man (Zarniko 1891; Schubert 1885), there have been sporadic reports in the literature from various parts of the world. These give the impression that while the incidence of the infection naturally varies in different countries, it is on the whole_uncommon_ (Andersen and Stenderup 1956; Montreuil 1955), but has b...
The retrospective study was conducted in Nishtar Medical Hospital & Bakhtawar Amin from January 2021 to 2022 evaluate CT findings of bone erosion and the implication surgical treatment patients with AFRS. on a total 140 patients. All underwent sinus examination before start treatment. Experienced neuroradiologist examined characteristics erosion. Data were recorded, including disease locati...
the paranasal sinuses are known to be a rare location for metastasis. renal cell carcinoma (rcc) is the most frequent primary tumor to metastasize to the sinonasal region, followed by lung and breast cancer. in particular, clear cell type rcc, which represents approximately 85% of rccs, is characterized by early metastasis, and it sometimes spreads to unusual sites (1, 2). metastatic tumors in ...
ABSTRACT With considering of high prevalence of sinusitis and variable imaging modalities in diagnosis of it, we decided to evaluate sensitivity and specifity of plain x-ray in diagnosis of acute sinusitis. In this researeh , CTscan and plain x-ray findings of 83 patients with suspected acute sinusitis (by otorhinolayrngologist) - with considering of ethical and economic notices - were compar...
In this case report we describe an aggressive primary ethmoid squamous cell carcinoma in an unusually young patient.
We herein report a young patient with cerebral venous thrombosis (CVT) with clinical and neuroradiological findings of the left maxillary and anterior ethmoid sinusitis. Serial brain MRIs showed cerebral venous infarct and thrombosis in the superior sagittal sinus (SSS). MR angiography demonstrated nonvisualization of SSS and bilateral transverse sinus. According to our knowledge, CVT associate...
nuses for chronic sinusitis is mainly performed to open the narrow bony points and to restore ventilation and internal drainage. Obstruction of the anterior ethmoid cells and the frontal recess by scar tissue or by a granulation polyp is a common cause of recurrent sinusitis after an ethmoid sinus operation (1). Mucocele formation, due to scarring in the frontal recess, may be also a cause of r...
BACKGROUND The phosphaturic mesenchymal tumor of the craniofacial sinuses (mixed connective tissue variant) is an extremely rare, distinctive paraneoplastic syndrome that is frequently associated with oncogenic osteomalacia. METHODS In this report is presented a case of 22 years old man indicated four years of progressive generalized pain and weakness, eventually becoming wheel-chair bound. H...
Radiation therapy has been recognized as a useful modality of treatment in head and neck malignant tumors. However, radiation over 10 Gy may predispose to secondary tumors. Radiation-induced osteosarcoma of the ethmoid sinus is unusual. These tumors may present long after radiation with epistaxis. Computed tomography, magnetic resonance imaging, and biopsy are the modalities of diagnosis. We re...
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