Inflammatory Myofibroblastic Tumors in Paranasal Sinus and Nasopharynx: A Clinical Retrospective Study of 13 Cases

Table 1

Clinical characteristics.

Clinical characteristics
Gender
Male	n = 6 (46%)
Female	n = 7 (54%)
Age
Range	21-64 years
Mean	40.7 years
Symptoms
Facial swelling and pain	n = 9 (69%)
Trismus	n = 6 (46%)
Headache	n = 5 (38%)
Toothache	n = 5 (38%)
Decreased vision	n = 4 (31%)
Diplopia	n = 3 (23%)
Protopsis	n = 3 (23%)
Fever	n = 3 (23%)
Weight loss	n = 6 (46%)
Anemia	n = 5 (38%)
Common sites
Maxillary sinus	n = 10 (77%)
Orbit	n = 9 (69%)
Ethmoid sinus	n = 8 (62%)
Nasal cavity	n = 5 (38%)
Infratemporal fossa	n = 5 (38%)
Pterygopalatine fossa	n = 4 (31%)
Parapharyngeal space	n = 4 (31%)
Sphenoid sinus	n = 4 (31%)
Nasopharynx	n = 4 (31%)