Imaging of parotid gland primitive neuroectodermal tumor.
A seven-years-old boy presented with recurrent episodes of right parotid gland swelling that was presumptively being treated as sialoadenitis. Interrogation with ultrasonography, computerized tomography and magnetic resonance imaging revealed a heterogeneous mass occupying the right parapharyngeal space, imperceptibly merging with adjoining parotid gland, scalloping the vertical ramus of the mandible and involving the base skull with widening of the foramen ovale. The findings at surgery and histopathology provided a final diagnosis of parotid gland primitive neuroectodermal tumor. This report emphasizes on the imaging findings of this rare tumor occurring in such an unusual location.
Department of Diagnostic Imaging, KK Women's and Children's Hospital, Singapore. niketachotai@yahoo.com
Niketa C
NC
Chotai
Phua
P
Tang
Anil N
AN
Gopinathan
D002648:Child; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D017599:Neuroectodermal Tumors / Q000000981:diagnostic imaging* / Q000473:pathology; D010306:Parotid Gland / Q000000981:diagnostic imaging* / Q000473:pathology; D010307:Parotid Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography