The patient is a 70 year-old female with history of persistent syndrome of inappropriate ADH secretions.
5.4 mCi of Indium 111 Octreotide was injected with imaging at 4 and 24 hours. Whole body scan was performed on the first day with whole body scanning as well as lateral of the skull on the second day. SPECT of the skull and lower abdomen/pelvis were also performed at 14 hours.
There is physiologic distribution throughout the body in the liver, spleen, kidneys, and bladder. There is however intense focus of increased uptake seen on the right lateral view in the region of the pituitary. This is confirmed on SPECT imaging which shows an intense focus of increased activity in the region of the pituitary. The SPECT of the lower abdomen/pelvis is within normal limits.
THERE IS AN INTENSE FOCUS OF ACTIVITY INVOLVING THE REGION OF THE PITUITARY WHICH MOST LIKELY REPRESENTS A NEURAL ENDOCRINE AND OR SOMATOSTATIN RECEPTOR BARING TUMOR.
The patient's CT scan was interpreted as normal.