Somatostatin Receptor Expression in the Thyroid Demonstrated with ¹¹¹In-Octreotide Scintigraphy

Summary

Neuroendocrine tumors with somatostatin receptor expression may be localized by ¹¹¹ln-octreotide scintigraphy. This study examines those thyroid conditions where ¹¹¹ ln-octreotide uptake could be observed also in the thyroid gland. 26 consecutive patients who underwent ¹¹¹ ln-octreotide scintigraphy for tumor localization were additionally examined for thyroid disease by sonography and ^99mTc-pertechnetate scintigraphy. 12 of these patients had no significant thyroid uptake and had an euthyroid normal-sized thyroid gland. 14 patiens with ¹¹¹ln thyroid uptakes had endemic goiters, two of them with thyroid autonomy and one with Graves’ disease. Thus, ¹¹¹ ln-octreotide thyroid uptake was predominantly seen in patients with endemic goiter with or without thyroid autonomy.

Zusammenfassung

Neuroendokrine Tumoren können szintigraphisch mit dem Somatostatinanalogon ¹¹¹ In-Octreotid lokalisiert werden. Diese Studie untersucht verschiedene Schilddrüsenerkrankungen, bei denen ebenfalls ein ¹¹¹ In-Octreotid-Uptake beobachtet werden konnte. 26 Patienten bei denen ein ¹¹¹ln-Octreotid-Szintigramm aufgenommen worden war, wurden zusätzlich einer eingehenden Schilddrüsendiagnostik mit Sonographie und quantitativ ausgewertetem Schilddrüsenszintigramm unterzogen. 12 dieser Patienten zeigten einen vernachlässigbaren ¹¹¹1n-Schild-drüsenuptake und hatten euthyreote und normal große Schilddrüsen. 14 Patienten mit einem erkennbaren ¹¹¹ln-Uptake hatten eine endemische Struma, davon 2 Patienten eine zusätzliche Schilddrüsenautonomie und eine Patientin eine floride Immunhyperthyreose.

Keywords

^1llln-octreotide - thyroid uptake - iodine deficiency

Schlüsselwörter

¹¹¹ln-Octreotid - Schilddrüsenuptake - Jodmangelstruma

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