Inguinal Endometriosis Visualized on I-131 Whole Body Scan

Derya Çayır, Mine Araz, Mahmut Apaydın, Erman Çakal
Molecular imaging and radionuclide therapy · 2018 · vol. 27(1) , pp. 52–54 · doi:10.4274/mirt.77044 · PMID:29393056 · W2792296695
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⚙ AI-generated summary by claude@2026-06, 2026-06-08 ⓘ

This case report details the first instance of I-131 uptake identified in an inguinal endometriosis focus on a whole body scan, emphasizing the importance of considering this diagnosis for ectopic radioiodine uptake.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-09 · read from full text ⓘ

The paper presents a rare case in which whole-body scanning with iodine-131 (I-131) showed uptake in the inguinal region of a patient with a painful right inguinal mass that worsened during menstruation. The inguinal focus was subsequently confirmed by sonography and histopathology as endometriosis. The authors note that while radioiodine uptake in endometriosis has been reported in other sites and inguinal uptake has also been described, they state this is the first case report specifically documenting I-131 uptake in an inguinal endometriosis focus. Relevance to endometriosis: This paper is centrally about endometriosis—specifically inguinal endometriosis visualized as I-131 uptake on whole-body scanning.

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Abstract

We present a rare case with inguinal iodine-131 (I-131) uptake on whole body scan. The patient was suffering from a painful right inguinal mass during menstrual period, which was later sonographically and histopathologically confirmed to be an inguinal focus of endometriosis. Endometriosis is a previously reported site of radioiodine uptake and detection of radioiodine uptake in the inguinal region has also been described. Nevertheless, to the best of our knowledge, this is the first case report of I-131 uptake in an inguinal endometriosis focus. History and physical examination of the patient are both very important in identifying the etiology of the ectopic uptake sites on I-131 whole body scan, and inguinal endometriosis should be kept in mind while reporting inguinal radioiodine uptake on I-131 whole body scan.
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ABSTRACT We present a rare case with inguinal iodine-131 (I-131) uptake on whole body scan. The patient was suffering from a painful right inguinal mass during menstrual period, which was later sonographically and histopathologically confirmed to be an inguinal focus of endometriosis. Endometriosis is a previously reported site of radioiodine uptake and detection of radioiodine uptake in the inguinal region has also been described. Nevertheless, to the best of our knowledge, this is the first case report of I-131 uptake in an inguinal endometriosis focus. History and physical examination of the patient are both very important in identifying the etiology of the ectopic uptake sites on I-131 whole body scan, and inguinal endometriosis should be kept in mind while reporting inguinal radioiodine uptake on I-131 whole body scan.

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endometriosis

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Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. [ expand to 2 hops ] — adds papers reached through this work's immediate citers/citees. Heavier; up to 60 extra dots.

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