1/8. Bilateral dynamic proptosis due to frontoethmoidal sinus mucocele.A 34-year-old man presented with bilateral inferior and lateral globe displacement and spontaneous, dynamic proptosis in both eyes, pulsatile in nature. Computed tomography and magnetic resonance imaging scans confirmed bilateral frontoethmoidal mucoceles with erosion of the orbital roof, and intracranial extension. Following a transcutaneous mini-trephine of the left orbital mucocele, the dynamic proptosis disappeared, and both proptosis and restriction of eye movements in the left eye improved. This is the first reported case of frontoethmoidal sinus mucocele causing bilateral spontaneous dynamic proptosis.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
2/8. adult intussusception with an appendiceal mucocele diagnosed by CT and ultrasonography.mucocele of the appendix is rare and mainly found incidentally at surgery or autopsy. Clinically, this tumor is known to cause pseudomyxoma peritonei or intussusception in adults. We present a case of adult intussusception with a leading mass of appendiceal mucocele. Computed tomography was useful in resolving the nature of the leading mass.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
3/8. enophthalmos: a clinical review.Twenty-six cases of enophthalmos were reviewed. The causes in order of frequency were: orbital asymmetry (8); trauma (5); orbital metastasis (4); microphthalmos (2); orbital varix (2); maxillary mucocele (2); localized scleroderma (1); absence of sphenoid wing (neurofibromatosis) (1); post irradiation atrophy (1). Only six of the patients (23%) were referred with the diagnosis of enophthalmos, suggesting the sign maybe subtle and is frequently missed or misdiagnosed. The nature of the causes underscore the need for careful and thorough diagnosis. In particular, the therapeutic implications of diagnosing metastatic disease, maxillary mucocele, and orbital varices is noted. A review of etiology and mechanisms of enophthalmos point to the diversity, importance and conditions causing this sign.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
4/8. mucocele of the sphenoid sinus.A mucocele of the sphenoid sinus caused persistent headache and destroyed the pituitary fossa before it was diagnosed and treated surgically via the transnasal route. The possible absence of clinical leads to the nature of this condition, and the importance of establishing a tissue diagnosis with destructive lesions in this area, are emphasized by this case.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
5/8. Computerized tomographic findings in mucoceles of the frontal and ethmoid sinuses.Computerised tomography (CT) is a valuable aid in the investigation of diseases of the paranasal sinuses. Seven patients with surgically proven mucoceles of the frontal or ethmoid sinuses are presented. In each case, proptosis was the main presenting symptom. Although the diagnosis was suspected on plain skull radiographs, CT confirmed the benign nature of the lesion and gave an accurate display of its extent.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
6/8. Computer-assisted tomography: sinus lesions with orbital involvement.Computer-assisted tomography (CAT) is superior to other roentgenographic modalities in evaluation of paranasal sinus lesions whenever extension into the orbit is suspected. CAT not only demonstrates the orbital involvement, its location, and extent, but also the nature of the sinus lesion. Conclusions based on 43 cases of paranasal sinus lesions with orbital involvement are presented. The entities include sinusitis and orbital cellulitis, mucocele, polyposis, ossifying fibroma, fibrous dysplasia, cylindroma, osteoblastoma, lymphoma, carcinoma, and rhabdomyosarcoma.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
7/8. Non-traumatic cerebrospinal fluid rhinorrhea.Non-traumatic cerebrospinal fluid rhinorrhea is uncommon. review of the literature revealed that 45% of cases are high pressure leaks and 55% of cases are normal pressure leaks. Meningoencephaloceles are very rare occurrences in the latter category and we present the third reported case occurring in the frontal sinus. Radiographically this lesion appeared as a mucocele because of its expansile nature, however non-traumatic mucoceles have not been associated with cerebrospinal fluid rhinorrhea. The only non-osseous expansile lesion of the paranasal sinuses found to be associated with this complication is the meningioencephalocele.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
8/8. A mucopyocele of the clivus: case report.OBJECTIVE AND IMPORTANCE: There are increasing reports of nasal sinus mucopyoceles eroding the base of the cranium and causing the rapid onset of neurological complications. Uncommon presentations can mimic tumors, but the infectious nature mandates an urgent surgical decompression. It is important to document these uncommon presentations. CLINICIAL PRESENTATION: A mucopyocele of the clivus is reported in a patient with a frequent history of sinusitis. diplopia caused by an acute sixth nerve palsy prompted the radiological diagnosis with computed tomography and magnetic resonance imaging. INTERVENTION: Transsphenoidal drainage of the lesion lead to marked improvement in the patient. CONCLUSION: This is the third reported case of a clival mucocele. Mucoceles of nasal sinuses can erode intracranially, causing neurological sequalae, and clival involvement is extremely rare. Early drainage leads to marked improvement.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |