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Computed tomography and magnetic resonance imaging findings of peripheral primitive neuroectodermal tumors of the head and neck.
- Source :
-
European journal of radiology [Eur J Radiol] 2011 Nov; Vol. 80 (2), pp. 607-11. Date of Electronic Publication: 2011 Feb 26. - Publication Year :
- 2011
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Abstract
- Purpose: We aimed to analyze the computed tomography (CT) and magnetic resonance imaging (MRI) findings of peripheral primitive neuroectodermal tumor (pPNET) of the head and neck.<br />Methods: Eight patients with pPNET of the head and neck confirmed by histopathological examination were analyzed retrospectively.<br />Results: The average patient age was 8 years. The tumor location in the 8 patients was as follows: maxillofacial region (right, 2; left, 1), left maxillary sinus (1), right masticator space (1), left carotid space (1), right infratemporal fossa (1), and left parotid gland (1). All 5 patients who underwent CT demonstrated ill-defined soft masses and no calcification. Three patients with tumors in the maxillofacial region showed homogeneous small masses and a mild enhancement. The patient with left maxillary sinus tumor showed a heterogeneous mass with patchy, necrotic foci and mild heterogeneous enhancement. The patient with right masticator space tumor showed a heterogeneous mass, and marked heterogeneous enhancement. The T1-weighted images of the patients with right infratemporal fossa, left carotid space, and left parotid gland tumors were isointense. The T2-weighted images were heterogeneous and mildly hyperintense in 2 patients and hyperintense in 1 patient. Heterogeneous intermediate enhancement was demonstrated in 2 patients and mild ring enhancement in 1 patient.<br />Conclusion: The imaging features of pPNET of the head and neck are non-specific. An ill-defined, aggressive mass and variable enhancement on CT and MR images may suggest the diagnosis of pPNET. Peripheral PNET should be included in the differential diagnosis of children and adolescents' regional tumors.<br /> (Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.)
- Subjects :
- Adolescent
Child
Child, Preschool
Contrast Media
Diagnosis, Differential
Female
Gadolinium DTPA
Head and Neck Neoplasms pathology
Humans
Male
Neuroectodermal Tumors, Primitive, Peripheral pathology
Retrospective Studies
Head and Neck Neoplasms diagnosis
Head and Neck Neoplasms diagnostic imaging
Magnetic Resonance Imaging methods
Neuroectodermal Tumors, Primitive, Peripheral diagnosis
Neuroectodermal Tumors, Primitive, Peripheral diagnostic imaging
Tomography, X-Ray Computed methods
Subjects
Details
- Language :
- English
- ISSN :
- 1872-7727
- Volume :
- 80
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- European journal of radiology
- Publication Type :
- Academic Journal
- Accession number :
- 21356582
- Full Text :
- https://doi.org/10.1016/j.ejrad.2011.02.008