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Indian J Nucl Med. 2020 Jan-Mar;35(1):84-86. doi: 10.4103/ijnm.IJNM_157_19. Epub 2019 Dec 31.

99m-Technetium-Labeled Red Blood Cells' Single-Photon Emission Computed Tomography/Computed Tomography in Situs Ambiguous with Polysplenia.

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Department of Nuclear Medicine, Marmara University Istanbul Pendik Training and Research Hospital, Istanbul, Turkey.


Situs ambiguous or heterotaxy syndrome is defined as the abnormal arrangement of organs and vessels within the body. Herein, we present an 8-year-old girl with growing right-sided suprarenal masses mimicking adrenal tumors. Technetium-99-m-radiolabeled red blood cells' planar images were inconclusive for the diagnosis of splenic tissue in the right side. Single-photon emission computed tomography/computed tomography imaging clearly identified right-sided functioning spleens and confirmed the diagnosis of situs ambiguous with polysplenia.


Heterotaxy syndrome; polysplenia; selective spleen scintigraphy; single-photon emission computed tomography/computed tomography; situs ambiguous; technetium-99m-labeled red blood cells

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