Atlas of PETMR Imaging in Oncology by Osman Ratib Markus Schwaiger & Thomas Beyer

Author:Osman Ratib, Markus Schwaiger & Thomas Beyer
Language: eng
Format: epub
Publisher: Springer Berlin Heidelberg, Berlin, Heidelberg

Findings

The left peripheral zone at 4 o’clock in the base of the prostate showed a high tracer uptake (SUV max  =  4) as well as reduced T2 signal and apparent diffusion coefficient ADC and an increase wash-in on the perfusion MRI after Gd injection. In the right peripheral zone at 7 o’clock, there was also an area of T2, diffusion and perfusion abnormalities on MRI but only a weak tracer uptake on the PET images (SUV max  =  2.3). Note also a moderate hypermetabolism in the central zone associated with an hyperperfusion and a mild restriction of the apparent coefficient of diffusion but no T2 abnormality in the right central zone.

Histology confirmed an adenocarcinoma in both the left and right peripheral zone.

Teaching Points

A low tracer uptake of a lesion does not exclude a prostatic cancer. The normal central gland can show moderate tracer uptake by comparison to the peripheral zone.

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