HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Full Text (PDF) Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by King, A. D. Articles by van Hasselt, A. C. Search for Related Content PubMed PubMed Citation Articles by King, A. D. Articles by van Hasselt, A. C.

Necrosis in Metastatic Neck Nodes: Diagnostic Accuracy of CT, MR Imaging, and US¹

¹ From the Departments of Diagnostic Radiology and Organ Imaging (A.D.K., A.T.A., E.H.Y.Y.), Anatomical and Cellular Pathology (G.M.K.T.), and Surgery (A.C.V., A.C.v.H.), Faculty of Medicine, Chinese University of Hong Kong, Prince of Wales Hospital, Ngan Shing St, Shatin, New Territories, Hong Kong SAR, China; and Oral Maxillofacial Surgery Center, St Teresa’s Hospital, Kowloon, Hong Kong SAR, China (E.W.H.T.). Received January 29, 2003; revision requested April 21; final revision received July 17; accepted August 13. Address correspondence to A.D.K. (e-mail: b834756@mailserv.cuhk.hk).

View larger version (161K): [in a new window]   Figure 1a. Malignant node with central necrosis (arrows) depicted at pathologic examination and with all modalities. (a) Pathologic specimen. (b) Transverse contrast-enhanced CT scan. (c) Transverse T2-weighted MR image obtained with fat saturation (2,800/120). (d) Transverse T1-weighted contrast-enhanced MR image (425/12). (e) Transverse US image.

View larger version (141K): [in a new window]   Figure 1b. Malignant node with central necrosis (arrows) depicted at pathologic examination and with all modalities. (a) Pathologic specimen. (b) Transverse contrast-enhanced CT scan. (c) Transverse T2-weighted MR image obtained with fat saturation (2,800/120). (d) Transverse T1-weighted contrast-enhanced MR image (425/12). (e) Transverse US image.

View larger version (135K): [in a new window]   Figure 1c. Malignant node with central necrosis (arrows) depicted at pathologic examination and with all modalities. (a) Pathologic specimen. (b) Transverse contrast-enhanced CT scan. (c) Transverse T2-weighted MR image obtained with fat saturation (2,800/120). (d) Transverse T1-weighted contrast-enhanced MR image (425/12). (e) Transverse US image.

View larger version (163K): [in a new window]   Figure 1d. Malignant node with central necrosis (arrows) depicted at pathologic examination and with all modalities. (a) Pathologic specimen. (b) Transverse contrast-enhanced CT scan. (c) Transverse T2-weighted MR image obtained with fat saturation (2,800/120). (d) Transverse T1-weighted contrast-enhanced MR image (425/12). (e) Transverse US image.

View larger version (159K): [in a new window]   Figure 1e. Malignant node with central necrosis (arrows) depicted at pathologic examination and with all modalities. (a) Pathologic specimen. (b) Transverse contrast-enhanced CT scan. (c) Transverse T2-weighted MR image obtained with fat saturation (2,800/120). (d) Transverse T1-weighted contrast-enhanced MR image (425/12). (e) Transverse US image.

View larger version (131K): [in a new window]   Figure 2a. Malignant node with necrosis (arrows) depicted at pathologic examination and with all modalities. (a) Pathologic specimen. Part of the central portion of the necrotic material was lost during processing, leaving a rim of necrotic material indicated by the arrows. (b) Transverse contrast-enhanced CT scan. (c) Transverse T1-weighted contrast-enhanced MR image (425/12). (d) Transverse US image. The necrotic area was isoechoic with US and was depicted because of movement of the necrotic material after compression with the probe within the region marked by the circle.

View larger version (74K): [in a new window]   Figure 2b. Malignant node with necrosis (arrows) depicted at pathologic examination and with all modalities. (a) Pathologic specimen. Part of the central portion of the necrotic material was lost during processing, leaving a rim of necrotic material indicated by the arrows. (b) Transverse contrast-enhanced CT scan. (c) Transverse T1-weighted contrast-enhanced MR image (425/12). (d) Transverse US image. The necrotic area was isoechoic with US and was depicted because of movement of the necrotic material after compression with the probe within the region marked by the circle.

View larger version (113K): [in a new window]   Figure 2c. Malignant node with necrosis (arrows) depicted at pathologic examination and with all modalities. (a) Pathologic specimen. Part of the central portion of the necrotic material was lost during processing, leaving a rim of necrotic material indicated by the arrows. (b) Transverse contrast-enhanced CT scan. (c) Transverse T1-weighted contrast-enhanced MR image (425/12). (d) Transverse US image. The necrotic area was isoechoic with US and was depicted because of movement of the necrotic material after compression with the probe within the region marked by the circle.

View larger version (150K): [in a new window]   Figure 2d. Malignant node with necrosis (arrows) depicted at pathologic examination and with all modalities. (a) Pathologic specimen. Part of the central portion of the necrotic material was lost during processing, leaving a rim of necrotic material indicated by the arrows. (b) Transverse contrast-enhanced CT scan. (c) Transverse T1-weighted contrast-enhanced MR image (425/12). (d) Transverse US image. The necrotic area was isoechoic with US and was depicted because of movement of the necrotic material after compression with the probe within the region marked by the circle.

View larger version (111K): [in a new window]   Figure 3a. Malignant node (curved arrow) with necrosis (straight arrow) depicted with MR imaging and CT but not with US. (a) Transverse contrast-enhanced CT scan. (b) Transverse T1-weighted contrast-enhanced MR image (425/12). (c) Transverse US image.

View larger version (123K): [in a new window]   Figure 3b. Malignant node (curved arrow) with necrosis (straight arrow) depicted with MR imaging and CT but not with US. (a) Transverse contrast-enhanced CT scan. (b) Transverse T1-weighted contrast-enhanced MR image (425/12). (c) Transverse US image.

View larger version (204K): [in a new window]   Figure 3c. Malignant node (curved arrow) with necrosis (straight arrow) depicted with MR imaging and CT but not with US. (a) Transverse contrast-enhanced CT scan. (b) Transverse T1-weighted contrast-enhanced MR image (425/12). (c) Transverse US image.

View larger version (142K): [in a new window]   Figure 4a. Malignant node with a central area of tumor and keratinization (arrows) that was interpreted as necrosis with all modalities. (a) Transverse contrast-enhanced CT scan. (b) Transverse T1-weighted contrast-enhanced MR image (425/12). (c) Transverse US image.

View larger version (169K): [in a new window]   Figure 4b. Malignant node with a central area of tumor and keratinization (arrows) that was interpreted as necrosis with all modalities. (a) Transverse contrast-enhanced CT scan. (b) Transverse T1-weighted contrast-enhanced MR image (425/12). (c) Transverse US image.

View larger version (190K): [in a new window]   Figure 4c. Malignant node with a central area of tumor and keratinization (arrows) that was interpreted as necrosis with all modalities. (a) Transverse contrast-enhanced CT scan. (b) Transverse T1-weighted contrast-enhanced MR image (425/12). (c) Transverse US image.

View larger version (126K): [in a new window]   Figure 5a. Malignant node with several small foci of necrosis depicted with MR imaging and CT. (a) Transverse contrast-enhanced CT scan shows the malignant node with necrosis (straight arrows), submandibular gland (curved arrow), and carotid vessels (double arrowheads). (b) Transverse T1-weighted contrast-enhanced MR image (425/12) shows the malignant node with necrosis (straight arrows), submandibular gland (curved arrow), and carotid vessels (double arrowheads).

View larger version (153K): [in a new window]   Figure 5b. Malignant node with several small foci of necrosis depicted with MR imaging and CT. (a) Transverse contrast-enhanced CT scan shows the malignant node with necrosis (straight arrows), submandibular gland (curved arrow), and carotid vessels (double arrowheads). (b) Transverse T1-weighted contrast-enhanced MR image (425/12) shows the malignant node with necrosis (straight arrows), submandibular gland (curved arrow), and carotid vessels (double arrowheads).