Octreotide scintigraphy uses 111In-labeled octreotide which is a somatostatin analog; it is also known as an OctreoscanTM, a brand name for 111In-labeled pentetreotide; pentetreotide is a DTPA-conjugated form of octreotide, originally manufactured by Mallinckrodt Nuclear Medicine LLC, which now forms part of Curium). It is particularly useful for assessment of neuroendocrine tumors.
- carcinoid tumor
- small cell lung cancer
- pituitary adenoma
- medullary thyroid carcinoma
- pancreatic islet cell tumor
Certain non-neuroendocrine tumors can also show uptake in an octreoscan. Examples include:
Also, certain autoimmune or granulomatous diseases may occasionally show octreotide uptake.