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Solitary late metastasis of primary renal cell carcinoid tumor to the extraocular muscles imaged with indium-111 octreotide

 Department of Radiology, Mater Misericordiae University Hospital, Dublin, Ireland

Correspondence Address:
Philip Jude Dempsey,
1 Mater Misericordiae University Hospital, Eccles Street, Dublin 7
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/wjnm.WJNM_28_20

A 75-year-old male presented with right eye pain and proptosis. His history was significant for renal cell carcinoma treated with left nephrectomy 2 years previously. Computed tomography (CT) imaging demonstrated a 1.6-cm enhancing lesion in the right retrobulbar space. Surgical biopsy revealed a low-grade metastatic carcinoid tumor. At retrospective review, the primary renal lesion from 2 years prior was rediagnosed as consistent with a renal carcinoid tumor. Indium-111 octreotide single photon emission CT/CT imaging demonstrated a solitary metastasis within the right extraocular muscles. The patient subsequently developed additional metastases within the remaining right kidney and lung.

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