This study retrospectively analyses paranasal sinus complications following displacement of oral implants in the maxillary sinus treated according to clinical situation by functional endoscopic sinus surgery (FESS), an intraoral approach, or a combination of both procedures. Over 5 years, 27 patients (13 male; 14 female), aged 27-73 years (mean 53.9 years), underwent treatment for postoperative...

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...

Objective: To identify frequency and characters of anatomic variations in paranasal sinuses in computed tomography scan of para-nasal sinuses. Methods: The retrospective study was conducted at the SSG Hospital, Baroda, and comprised computed tomography scans of 75 patients who had presented between December 2016 and January 2017. The scans were reviewed for the presence of deviated nasal septum...

A mucocele of paranasal sinuses is a collection of mucus within an epithelial lined sinus whose outflow tract is permanently obstructed. The most common site for a mucocele is the frontal sinus; it is less common in the other sinuses. Frontal mucoceles present in different ways depending upon their size and duration, with symptoms often gradual and insidious. Symptoms are mainly ophthalmic and ...

The osteomas are osseous lesions with slow and asymptomatic growth that mostof the times isafinding inradiologicalexamsrequested forother reason. It’s the most common benign neoplasm of the paranasal sinuses. The osteomas are located mainly in the frontal sinus (37–80%), followed by the ethmoidal sinuses (20%),maxillarysinusesandrarely in thesphenoidsinus. Although osteoid osteoma is rare in pa...

Aneurysmal bone cysts (ABCs) are expansile cystic lesions that can affect any bone of the body. Whilst these lesions are histologically benign, the lesions are locally aggressive and can affect the integrity of the affected bone as well as surrounding structures. ABCs arising in the head and neck region, particularly the paranasal sinuses are rare and they are limited to case reports in the lit...

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 ...

An otorhinolaryngologist must know the anatomy of nasal cavity and paranasal sinuses prior to endoscopic surgery, because many structures cann’t be evaluated by him during visual examination. In this regard, all patients undergo computed tomography as a preoperative preparation, which allows not only identify pathological process, but also assess anatomical features that may predispose surgical...

Hemangiopericytoma is a vascular tumor that is rarely seen in the nose and paranasal sinuses. Biological behavior of these tumors is not completely known, and their natural history is not predictable. This case report presents a patient with a sinonasal hemangiopericytoma. Diagnosis and management of these uncommon tumors is discussed.