DMFR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Wakoh, M
Right arrow Articles by Wada, N
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Wakoh, M
Right arrow Articles by Wada, N
Dentomaxillofacial Radiology (2005) 34, 44-50
© 2005 British Institute of Radiology
doi: 10.1259/dmfr/57066369

CASE REPORT

Two cases of schwannoma with marked cystic changes

M Wakoh*,1, H Yonezu2, T Otonari1, T Sano1, K Matsuzaka3, T Inoue3 and N Wada4

1 Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Chiba, Japan; 2 The Second Department of Oral and Maxillofacial Surgery, Tokyo Dental College, Chiba, Japan; 3 Department of Clinical Pathophysiology, Tokyo Dental College, Chiba, Japan; 4 Chiba Brain Surgical Hospital, Chiba, Japan

*Correspondence to: Dr Mamoru Wakoh, Associate Professor, Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Chiba, 261-8502, Japan; Email: wakoh{at}tdc.ac.jp

Received 28 June 2004; revised 8 November 2004; accepted 14 November 2004

We report two cases of schwannoma displaying marked cystic changes; one in the temporalis muscle and one in the submandibular space. The first patient, a 44-year-old male, presented after complaining of a swelling rapidly increasing in size in the left temporal region. Computed tomography (CT) indicated a low-density area surrounded by soft tissue. Magnetic resonance imaging (MRI) revealed signal hypointensity on T1 weighted imaging and strong signal hyperintensity on T2 weighted imaging. The extirpated tumour specimen measured 58 mmx58 mmx30 mm. Histopathological examination identified schwannoma, comprising spindle cell proliferation in a palisading pattern with obvious cystic changes. The second case involved a 46-year-old female who presented with swelling of the right submandibular region. Panoramic radiography and lateral oblique mandible projection, which were used together with conventional sialography of the submandibular gland, revealed the so-called "ball in hand" appearance of the submandibular gland, and contrast-enhanced CT identified a lesion of 30 mm diameter with a well-defined annular margin and homogeneous low-density near the tumour centre. Benign pleomorphic adenoma was suspected, but histopathological examination identified schwannoma, predominantly comprising Antoni B type tissue.

Keywords: schwannoma; intramuscular; temporalis muscle; submandibular space; cystic change




This article has been cited by other articles:


Home page
 Dentomaxillofac RadiolHome page
M Baranovic, D Macan, E. Begovic, I Luksic, D Brajdic, and S Manojlovic
Schwannoma with secondary erosion of mandible: case report with a review of the literature
Dentomaxillofac. Radiol., November 1, 2006; 35(6): 456 - 460.
[Abstract] [Full Text] [PDF]

Home page
 Arch Otolaryngol Head Neck SurgHome page
Radiology Quiz Case 2: Diagnosis
Arch Otolaryngol Head Neck Surg, January 1, 2006; 132(1): 105 - 106.
[Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
BJR DMFR IMAGING ALL BIR JOURNALS
Copyright © 2005 by the British Institute of Radiology.