Cerebral metastasis - solitary

Case contributed by A.Prof Frank Gaillard

Presentation

Right sided weakness.

Patient Data

Age: 70 years
Gender: Female
CT

A 2cm rounded mass is present in the post-central gyrus, which is iso-dense to cortex pre-contrast and demonstrates homogeneous contrast enhancement. It is located at the grey-white matter interface and is surrounded by extensive vasogenic oedema, which exerts significant mass effect. 

CT

Following the administration of contrast the mass demonstrates relatively vivid enhancement. It remains an isolated abnormality.

Annotated image

The enhancing mass ( * ) is surrounded by vasogenic oedema (blue dotted line) which is confined to the white matter. 

Case Discussion

Although typically we think of multiplicity as being the hallmark of cerebral metastases, a large number are seemingly solitary at the time of diagnosis.  Thus metastatic disease needs to be entertained in the differential of a solitary cerebral mass. 

In this case the patient had a known history of metastatic colorectal carcinoma. 

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Case information

rID: 19212
Case created: 17th Aug 2012
Last edited: 9th Aug 2016
Inclusion in quiz mode: Included

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