Paranasal sinus mass

Paranasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity. The maxillary sinuses are located under the eyes; the frontal sinuses are above the eyes; the ethmoidal sinuses are between the eyes and the sphenoidal sinuses are behind the eyes. [Source: Wikipedia ]

May Be Caused by

Common: Adenocarcinoma; Adenoid cystic carcinoma; Burkitt lymphoma; Chordoma; Cylindroma; Cystic fibrosis; Encapsulated blood; Encapsulated exudate; Encapsulated pus; Fracture with hematoma; Impacted tooth; Juvenile angiofibroma; Lymphoepithelioma; Mucocele; Mucous retention cyst; Nasopharyngeal neoplasm; Oral neoplasm; Orbital neoplasm; Osteoma; Pituitary neoplasm; Polyp; Pseudopolyp; Serous cyst; Sinusitis; Squamous cell carcinoma
Uncommon: Aneurysmal bone cyst; Antrochoanal polyp; Barotrauma; Chondrosarcoma; Dentigerous cyst; Dermoid; Encephalocele; Epithelial papilloma; Extramedullary plasmacytoma; Foreign body; Fungal disease; Giant cell granuloma; Giant cell tumor; Glanders; Globulomaxillary cyst; Hemangioma; Hemangiopericytoma; Langerhans cell histiocytosis; Leprosy; Lethal midline granuloma; Lipoma; Meningioma; Metastasis; Myeloma; Neurocele; Neurofibroma; Odontoma; Ossifying fibroma; Osteoblastoma; Osteochondroma; Osteoid osteoma; Osteosarcoma; Polypoid rhinosinusitis; Rhinoscleroma; Sarcoidosis; Schwannoma; Sinolith; Surgical ciliated cyst; Syphilis; Tuberculosis; Wegener granulomatosis