Hemangiopericytoma of the parapharyngeal space: a diagnostic challenge.
Parapharyngeal space tumors are known for having a difficult approach, misleading diagnosis and for representing a treatment challenge. Hemangiopericytomas account for less than 1% of all vascular neoplasms and 3% of all soft tissue sarcomas. Only 14 cases have been reported in the worldwide literature in this location. We present a case of a 44-year-old male who was referred for evaluation. A CT scan and MRI showed a large parapharyngeal mass of a possible salivary gland origin. The patient underwent a lateral cervicotomy associated with a transparotid-transmandibular approach, obtaining a vimentin-positive immunostaining tumor defining the diagnosis. The accurate management and prognosis of this type of neoplasm are provided by the definite diagnosis obtained by a correct histopathologic assessment. A high clinical suspicion is essential.
Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain.
Ithzel Maria
IM
Villarreal
Jose
J
Garcia Berrocal
Beatriz
B
Brea
Eva
E
Tejerina
Jose
J
Castello
Rafael
R
Ramirez-Camacho
D000328:Adult; D006393:Hemangiopericytoma / Q000175:diagnosis* / Q000378:metabolism / Q000473:pathology / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008297:Male; D010610:Pharyngeal Neoplasms / Q000175:diagnosis / Q000378:metabolism / Q000473:pathology / Q000601:surgery; D011379:Prognosis; D014057:Tomography, X-Ray Computed