Peripheral Primitive Neuroectodermal Tumours (pPNET) are rare aggressive tumours of neural crest cell origin. These tumours are more common in children and young adults. This is a unique report of one such presentation in a 23-year-old lady occurring in the left side posterior maxilla and Paranasal sinuses along with imaging characteristics, histopathologic features, immunohistochemical aspects...

Non-Hodgkin’s Lymphoma (NHL) occurring in the paranasal sinus is very uncommon. Diagnosis of NHL arising from paranasal sinus and more specifically the maxillary sinus often will be challenging because of the symptoms mimicking clinical features of sinusitis. Here we report a case of maxillary antral NHL in a female patient of age 42 years with chief complaint of unilateral nasal obstruction. I...

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.

tumefactive fibroinflammatory lesions (tfls) are rare idiopathic benign fibrosclerosing lesions that clinically simulate a malignancy. tfls are seen more frequently in males between 10 and 74 years of age. the usual site of involvement is the head and neck region, but rarely the extremities may be involved. coexisting fibrosclerotic processes have been reported including retroperitoneal fibrosi...

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...

introduction: solitary fibrous tumours (sfts) of the nose and paranasal sinuses are extremely rare.these were originally described as neoplasms of the pleura originating from spindle cells. it is further sub-classified as a benign type of mesothelial tumour. its occurrence in many extra pleural sites have been reported earlier, mainly in the liver, parapharyngeal space, sublingual glands, tongu...

Meningiomas are well-recognized tumors of the central nervous system. Extracranial meningiomas, secondarily extended into the paranasal sinuses, are rare tumors, comprising approximately 2% of all meningiomas. Extracranial meningiomas of the paranasal sinuses may present a diagnostic and the rapeutic challenge. We present a retrospective review comprising three cases and discuss the clinical pr...