Indian Journal of Nuclear Medicine
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CASE REPORT
Year : 2019  |  Volume : 34  |  Issue : 1  |  Page : 57-59

Gall bladder activity on technetium99m-ethylenedicysteine renogram masquerading as ectopic kidney


Department of Nuclear Medicine and PET CT, Sri Venkateswara Institute of Medical Sciences, Tirupati, Andhra Pradesh, India

Correspondence Address:
Dr. Ranadheer Manthri
Department of Nuclear Medicine, Sri Venkateswara Institute of Medical Sciences, Tirupati - 517 501, Andhra Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijnm.IJNM_100_18

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99mTc-EC (Technetium-99m-ethylenedicysteine) is a renal tubular imaging agent introduced as an alternative to 99mTc-MAG3 (Technetium-99m-mercaptoacetyltriglycine) (1). This radiopharmaceutical can be easily labeled at room temperature and has high radiochemical purity and long stability for at least 8 h. Within 1 h 70% of 99mTc-EC is excreted in the urine (2). 99mTc-EC provides the same Scintigraphic information as 99mTc-MAG3. The Hepato biliary excretion of 99mTc-EC is very low and usually does not affect image interpretation on routine imaging, the possibility of visualization of the gall bladder should be kept in mind while reporting the 99mTc-EC renogram (1). We present a case of 99mTc-EC renogram, a suspected case of hypoplastic/ectopic right kidney, to look for ectopic kidney. In this case, there was unexpected visualization of gallbladder in delayed images. We herewith present this case, so that physician should be careful while reporting 99mTc-EC renogram, as there may be chances for gall bladder to be masquerading as Ectopic kidney.


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