A 39 year old female with 24-month history of recurrent mucoid rhinorhea associated with progressive bilateral nasal blockage, headache, anosmia and bilateral impaired vision is reported. There was a past history of sinus surgery. The neuro-ophthalmic examination revealed left non-axial proptosis and visual acuity of nil light perception in both eyes at 3 meters. CT scan of the paranasal sinuse...

Schwannomas of the paranasal sinus are uncommon. Less than 4% of schwannomas involve the nasal cavity and paranasal sinuses, even less in the pediatric age group. A case of schwannoma arising in maxillary sinus in a 2.5-year-old Chinese boy is reported. The basis for discussion of this case is the exceptional rarity of sinonasal schwannoma in pediatric patients.

PURPOSE To delineate the relationship between the optic nerves and the posterior paranasal sinuses using CT data. METHODS Direct coronal sinus CT scans of 150 consecutive patients with chronic inflammatory sinus disease were reviewed by two radiologists. Axial oblique reconstructions along the course of the optic nerve were obtained for the first 100 patients. The direct relationship between ...

The frequency of fungal etiology of sinusitis contains between 9 and 49 % according to different authors. Fungal rhinosinusitis has been divided into noninvasive and invasive forms. Noninvasive infections include fungus ball (mycetoma) and allergic fungal rhinosinusitis. Invasive infections include acute (or fulminates) fungal rhinosinusitis and invasive chronic rhinosinusitis. The case of chro...

Invasive plasmacytoma appearing as a mass in the paranasal sinuses developed in two patients after cardiac transplantation. Radiographic findings included a sinus mass with bony invasion and expansion. The findings were radiographically indistinguishable from common malignant neoplasms and aggressive infectious processes. Malignant plasmacytoma should be considered in the differential diagnosis...

Although craniofacial bone is the second common site of fibrous dysplasia involvement, it is rarely found in the paranasal sinus. Among fibrous dysplasia of the head and neck, the maxilla and mandible are the most frequent sites to be involved. Fibrous dysplasia becomes dormant in adolescence and early adult life and is more common in female. It is one of the fibrous osseous lesions and should ...

Central retinal artery occlusion (CRAO) is a retinal ischemic disorder associated with sudden loss of vision and has a poor prognosis. We report a case of CRAO that occurred during frontal sinus surgery involving craniotomy in a patient with a frontal sinus cyst. The prognosis for treatment after the acute phase is generally unfavorable; however, aggressive treatment is recommended for patients...

In normal upper airways, nitric oxide is generated by the paranasal sinus epithelium and then diffuses into the nasal cavities. This study examined whether or not nasal NO concentration is affected by paranasal sinus inflammatory diseases. The influence of obstruction (nasal polyposis) and/or inflammation (allergy or chronic sinusitis) of the paranasal sinuses on nasal NO concentration was eval...

Fungus balls are a chronic and non-invasive fungal infection. Despite being relatively common in the paranasal sinuses, they rare nasal cavity. The etiology of fungus cavity is unknown. generally develop slowly asymptomatically. When symptomatic, can cause symptoms similar to those sinusitis or intranasal masses, such as obstruction, postnasal discharge, head face pain, smell perception disorde...