Medcyclopaedia Home E-learningLibraryLexical IndexLexical TopicsGlossaryFace-a-CaseSpinal CordCerebral TumorsCystic TumorsEmbryonal TumorsLocal Extension From Regional TumorsLymphomas And Hematopoetic NeoplasmsMeningeal And Mesenchymal TumorsMetastatic TumorsNeural And Mixed Neural Glial TumorsPineal Region TumorsPseudotumoral LesionsTumors Of Neuroepithelial TissueMR Neuro AngiographyTextbook of RadiologyTextbook of Radiology (e-paper)Medical Imaging Made EasyDownloadsMedcyclOasisAbout MedcyclopaediaContact Us
MedcycloPoll
Did you get the help you required from Medcyclopaedia™ during today's visit?
Yes
 
 (84.6%)
No
 
 (10.9%)
Undecided
 
 (4.5%)
You must be logged on to vote.
Please log in or register.
 
 
 

Metastasis of colon carcinoma

CLINICAL HISTORY:
This 70-year old woman underwent surgery 3 years ago for an adenocarcinoma of the sigmoid colon. Now she notes intermittent paresthesias of the right arm.

NEUROLOGICAL EXAMINATION is normal.

MRI:
a) TRANSAXIAL T2-WEIGHTED (2500/90/1) SPIN-ECHO SEQUENCE (IMAGES 1 AND 2): A mass lesion is seen (arrow) in the left side of the mesencephalon with pronounced hypointensity. Lesion is surrounded by edema.

b) TRANSAXIAL T1-WEIGHTED (600/20/1) SPIN-ECHO SEQUENCE (IMAGE 3): The lesion is slightly hypointense to brain.

c) TRANSAXIAL (IMAGES 4 AND 5) AND SAGITTAL (IMAGE 6) GADOLINIUM-ENHANCED SPIN-ECHO SEQUENCES: Ring-like enhancement of the lesion is noted.

RADIOLOGICAL DIAGNOSIS: Metastasis of colon carcinoma to the mesencephalon. The short T2 is typically described in metastasis of mucinous adenocarcinoma of the gastrointestinal tract.

No surgical confirmation is available.

Search also:
Parenchymal metastases

 

The ESNR CD-Rom Series

To view high resolution images,
please register first.

Click  here to register.

Already registered? Enter your e-mail in the window below.
Re-register

Fig. 1

Metastasis of colon carcinoma, Fig. 1
Metastasis of colon carcinoma, Fig. 2
Metastasis of colon carcinoma, Fig. 3
Metastasis of colon carcinoma, Fig. 4
Metastasis of colon carcinoma, Fig. 5
Metastasis of colon carcinoma, Fig. 6