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An octreoscan is a scinitigraphic study that uses a 111In labelled octreotide which is a somatostatin analog. It is particularly useful for assessment of neuroendocrine tumours.

Examples include:

Certain non neuroendocrine tumours can also show uptake in an octreoscan

Examples include

In addition certain autoimmune or granulomatous disease may also occasionally show uptake with octreotide

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