PET TUMOR IMAGE 12-08-04
HISTORY: GI stromal tumor, Gleevec chemotherapy.
RADIOPHARMACEUTICAL: 10.2 mCi F-18-FDG
PROCEDURE: One hour after the intravenous administration of F-18-FDG, whole body images were obtained.
FINDINGS: Comparison study dated 14 Apr. 2004 .
There are at least four small-to-large sized areas of intense activity within the abdomen and pelvis in the expected location of bowel: one in the mid ascending colon, one in the anterior midline pelvis at the level of the sacrum, one at the same level but in the right posterolateral aspect of the pelvis, and one large area just above and to the right of the dome of the bladder in the region of the sigmoid colon.
There is focal faint, abnormal activity within the posterolateral aspect of the right lobe of the liver (segment 7), or the right posterior sulcus; with a small, faint area of focal activity in the posteromedial aspect of the left lung near the very inferior portion of the left pulmonary hilum.
There is normal activity within the brain, salivary glands, oropharynx, the distal esophagus, the kidneys, ureters, and the bladder.
In comparison with the previous examination, the faint areas in the liver and left lung are new; and the bowel pattern has changed somewhat, with a large new area in the colon to the right and just above the bladder, increasing activity in the midline and the right posterolateral pelvis, and persistent stable activity in the ascending colon.
SMALL, FAINT AREAS OF ACTIVITY SUSPICIOUS FOR (BUT NOT DEFINITIVE OF) DEVELOPING METASTASES IN THE LIVER AND THE POSTEROMEDIAL ASPECT OF THE LEFT LUNG NEAR THE INFERIOR PORTION OF THE PULMONARY HILUM.
SEVERAL AREAS OF ABNORMAL ACTIVITY WITHIN THE BOWEL, WHICH MAY REPRESENT METASTASES, OR OTHER LESION SUCH AS ADENOMAS, POLYPS, ETC. A COLONOSCOPY WOULD BE VERY HELPFUL IN FURTHER EVALUATION.