1/153. Frontal sinus pneumocele. A case report.A pneumocele refers to an aerated sinus with either focal or generalized thinning of the bony sinus wall. Although the pathogenesis of a pneumocele is not yet known, it is presumed that increased intrasinusal pressure, due to a one-way valve between the nasal cavity and the affected sinus, is responsible for this condition. A 37-year-old man with frontal bossing, who underwent surgery for cosmetic reasons, is presented.- - - - - - - - - - ranking = 1keywords = frontal (Clic here for more details about this article) |
2/153. Inferior concha bullosa--a radiological and clinical rarity.Two cases of inferior concha bullosa (ICB) are reported. The condition was bilateral in one patient and unilateral in the other. Unilateral ICB was associated with marked septal deviation. The diagnosis was made in patients being investigated for chronic rhinosinusitis. ICB is diagnosed by computed tomography (CT) of the sinuses in the coronal plane. It may also be seen in axial views.- - - - - - - - - - ranking = 2.6706165545243keywords = sinusitis (Clic here for more details about this article) |
3/153. A rare case of pneumosinus dilatans of the frontal sinus and review of the literature.Pneumosinus dilatans is a rare condition of unknown etiology in which there is enlargement of the paranasal sinuses by air, with extension beyond the normal boundaries of bone. The authors present a case of pneumosinus dilatans of the frontal sinus and review the literature.- - - - - - - - - - ranking = 5keywords = frontal (Clic here for more details about this article) |
4/153. Pneumosinus dilatans: a report of three new cases and their surgical management.Pneumosinus dilatans is a rare pathology that primarily involves the frontal sinus. We report three new cases, with special attention given to the pathophysiology and histologic data. Surgical management is reported.- - - - - - - - - - ranking = 1keywords = frontal (Clic here for more details about this article) |
5/153. Isolated sphenoid sinus abscess: clinical and radiological failure in preoperative diagnosis. Case report and review of the literature.BACKGROUND: Isolated sphenoid sinusitis and abscess formation is a rare entity, which can lead to misdiagnosed or improperly treated patients and an unfavorable outcome. Invasion of the skull base and cavernous sinus usually causes cranial nerve palsies, suggesting a neoplasm at the initial presentation. CASE DESCRIPTION: A case of isolated abscess in the sphenoid sinus is reported. The complete destruction of the clivus and its unexceptional radiological data, in addition to the absence of clinical and laboratory evidence of infection, led us to misdiagnose a possible clival chordoma during preoperative evaluation. The patient underwent an endonasal-transsphenoidal procedure for diagnosis and surgical removal. Surgical drainage and prolonged antimicrobial treatment resulted in complete clinical recovery. CONCLUSION: Its close proximity to vital structures and slender bony structures may allow the infection to disseminate, with serious neurological complications. On the other hand, the variable clinical presentations and radiological data usually cause delayed or missed diagnosis in these cases. This emphasizes the importance of documentation of this unusual entity and its radiological manifestations.- - - - - - - - - - ranking = 2.6706165545243keywords = sinusitis (Clic here for more details about this article) |
6/153. Invasive fungal sinusitis in the acquired immunodeficiency syndrome.Invasive fungal sinusitis can present as either an indolent or fulminant process that primarily affects immunocompromised individuals. In this article, the clinical characteristics of four cases of invasive fungal sinusitis in patients with AIDS are analyzed and 22 additional previously reported cases in the literature are reviewed. In addition to hiv infection, other variables common to these cases include facial pain or headache out of proportion to clinical or radiographic findings, cd4 lymphocyte count less than 50 cells/mm(3), absolute neutrophil count less than 1,000 cells/mm(3), subtle radiographic evidence suggesting invasion and an indolent clinical course of the invasive infection. The most common pathogen detected was aspergillus fumigatus. Maintaining a high index of suspicion, critically assessing these clinical findings, and prudently reviewing CT scans may facilitate early diagnosis and prompt intervention in these patients.- - - - - - - - - - ranking = 16.023699327146keywords = sinusitis (Clic here for more details about this article) |
7/153. The endoscopic management of chronic frontal sinusitis associated with frontal sinus posterior table erosion.Expansile inflammatory diseases of the frontal sinuses may produce erosion of the posterior table of the frontal sinus. In these instances, the bone between sinus mucosa and intracranial dura is absent. Over the past decade, endoscopic frontal sinusotomy has emerged as the preferred technique for the treatment of refractory chronic frontal sinusitis. Endoscopic approaches also have a role in the most advanced instances of frontal sinusitis. A retrospective chart review of patients who were treated for frontal sinusitis with erosion of the frontal sinus posterior table was performed. Eight patients were identified. All patients underwent endoscopic frontal sinusotomy; some patients required multiple endoscopic procedures. Complete frontal recess dissection with identification of the frontal ostium was achieved for all involved frontal sinuses. In all cases, this postoperative result was monitored by CT scans (where indicated) and serial nasal endoscopy, which demonstrated good frontal sinus aeration and normal mucociliary clearance. Antibiotics were administered for culture-documented bacterial exacerbations, and systemic steroids were given for management of allergic fungal sinusitis and sinonasal polyposis associated with asthma. No patient underwent frontal sinus obliteration or cranialization. No suppurative intracranial complications were noted during the postoperative period. Endoscopic frontal sinusotomy can be used safely for the definitive management of frontal sinusitis associated with posterior table erosion. In fact, endoscopic techniques may represent the preferred approach for the treatment of this problem. Such an approach avoids the morbidity of more destructive alternatives (such as obliteration), and serves to create a frontal sinus with normal mucociliary clearance.- - - - - - - - - - ranking = 65.649140529579keywords = sinusitis, frontal sinusitis, frontal (Clic here for more details about this article) |
8/153. Maxillary antral mucocele and its relevance for maxillary sinus augmentation grafting: a case report.Paranasal sinus mucoceles are benign, locally expansile cyst-like masses that are filled with mucus and lined with epithelium. Most occur in the frontal sinus. maxillary sinus mucoceles are presumably uncommon in the united states and European countries, although they have been frequently reported in japan, particularly following Caldwell-Luc surgery. Clinical symptoms may not appear for at least 10 years postoperatively. Chronic sinus inflammation and allergic disease are also common causes of paranasal mucoceles. This paper provides an overview of maxillary sinus mucoceles and presents a case study involving a 62-year-old Latin male whose asymptomatic maxillary sinus mucocele was not revealed until he presented for maxillary sinus grafting and implant placement.- - - - - - - - - - ranking = 1keywords = frontal (Clic here for more details about this article) |
9/153. Monostotic fibrous dysplasia of the sphenoid sinus: a serendipitous finding on a bone scan.A 22-year-old woman had a Tc-99m MDP whole-body scan for low back pain. A focal area of increased activity was seen in the skull base in the region of the sella turcica. A computed tomographic examination showed ground-glass opacification of the sphenoid sinus and bony sclerosis along its walls, characteristic of fibrous dysplasia. Monostotic fibrous dysplasia, the more common form compared with the polyostotic variety, occurs in 70% to 80% of all patients with fibrous dysplasia. Monostotic lesions usually involve the ribs, femur, tibia, cranium, maxilla, and mandible. The frontal and sphenoid bones are the cranial bones most commonly involved.- - - - - - - - - - ranking = 1keywords = frontal (Clic here for more details about this article) |
10/153. Gas in the cranium: an unusual case of delayed pneumocephalus following craniotomy.We present the case history of a 23-year-old man who underwent frontal craniotomy followed by radiotherapy for a Grade III anaplastic glioma. magnetic resonance imaging (MRI) at the 3-month follow-up showed significant tumour response. He became unwell some weeks after the MRI with an upper respiratory tract infection, severe headache and mild right-sided weakness. A computed tomographic (CT) scan showed a very large volume of intracranial gas, thought to have entered via a defect in the frontal air sinus after craniotomy and brought to light by blowing his nose. Intracranial air is frequently present after craniotomy, but it is normally absorbed within 34 weeks. The presence of pneumocephalus on a delayed postoperative CT scan should raise the possibility of a cerebrospinal fluid (CSF) fistula, or infection with a gas-forming organism. Many CSF fistulae require surgical closure in order to prevent potentially life-threatening central nervous system infection and tension pneumocephalitis. Immediate neurosurgical review is advisable.- - - - - - - - - - ranking = 2keywords = frontal (Clic here for more details about this article) |
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