Original Articles
TUMORS INVADING PARAPHARYNGEAL SPACE: REFINED IMAGING DIAGNOSIS
Abstract
Objective: To investigate imaging findings of tumors invading parapharyngeal space.
Methods: Magnetic resonance imaging (MRI) computerized tomography (CT), magnetic resonance angingraphy (MRA) and digital subtruation angiography (DSA) findings of 19 patients with tumors infiltrating parapharyngeal space by surgery and pathology were analysed, including four branchial cleft cysts, three jugular giomus tumors, four carotid body tumors, three neurilemomas and five carcinomas of nasopharynx involving parapharyngeal space. Fifteen patients underwent MRI scanning nine patients had CT scanning, three patients MRA and five patients DSA.
Results: MRI provided clinically useful informatious about the size, shape, extent and site of the parapharyngeal space tumors, and also their effects on adjacent structures. The main MRI features of paragnngiioma presented as many low signal tortuous and creeping vessels in the tumor. The main CT features of jugular giomus tumor revealed as jugular foramen enlargement with hone destruction. Tumor vessels were clearly displayed by MRA and DSA.
Conclusion: MRI was superior to CT in the diagnosis of tumors invading parapharyngcal space. The location and nature of the lesions could be diagnosed accurately by MRI combined with CT or DSA.
Methods: Magnetic resonance imaging (MRI) computerized tomography (CT), magnetic resonance angingraphy (MRA) and digital subtruation angiography (DSA) findings of 19 patients with tumors infiltrating parapharyngeal space by surgery and pathology were analysed, including four branchial cleft cysts, three jugular giomus tumors, four carotid body tumors, three neurilemomas and five carcinomas of nasopharynx involving parapharyngeal space. Fifteen patients underwent MRI scanning nine patients had CT scanning, three patients MRA and five patients DSA.
Results: MRI provided clinically useful informatious about the size, shape, extent and site of the parapharyngeal space tumors, and also their effects on adjacent structures. The main MRI features of paragnngiioma presented as many low signal tortuous and creeping vessels in the tumor. The main CT features of jugular giomus tumor revealed as jugular foramen enlargement with hone destruction. Tumor vessels were clearly displayed by MRA and DSA.
Conclusion: MRI was superior to CT in the diagnosis of tumors invading parapharyngcal space. The location and nature of the lesions could be diagnosed accurately by MRI combined with CT or DSA.
