Vol 24, No 1 (2021)
Clinical vignette
Published online: 2021-01-29
Accumulation of 99m-Tc Phytate in the pyelocalyceal system in a patient with chylous ascites — a pitfall resolved by SPECT/CT
Abstract
We reported 99m-Tc phytate accumulation in the pyelocalyceal system of the kidney in the lymphoscintigraphic images of a 3.5
months-old male infant with chylous ascites, which was mistaken with the site of lymph leakage. SPECT/CT localized activity
in the para-aortic region to the renal pelvis and on delayed images, this was disappeared. Our case illustrates the added value
of SPECT/CT for the differentiation of possible false-positive findings in lymphoscintigraphy.
Keywords: lymphoscintigraphy99m-Tc phytatechylous ascitesleakagepyelocalyceal systemSPECT/CT
References
- Alivifard R, Yousefi Z, Kadkhodayan S, et al. Pelvic kidney visualization on the lymphoscintigraphy images of a patient with uterine cervix cancer: importance of the delayed imaging. Clin Nucl Med. 2014; 39(3): 286–287.
- Kao CH. Incidental detection of bilateral kidney calyces in Tc-99m phytate liver and spleen scan. Clin Nucl Med. 1999; 24(9): 720–721.
- Sadeghi R, Tabasi KT, Bazaz SMM, et al. Sentinel node mapping in the prostate cancer. Meta-analysis. Nuklearmedizin. 2011; 50(3): 107–115.
- Gregg DC, Wells RG, Sty JR. Lymphoscintigraphy. Chylous ascites and lymphocele demonstration. Clin Nucl Med. 1988; 13(4): 300.
- Kaplan WD, Davis MA, Uren RF, et al. et al.. A model for the radionuclide measurement of ascitic fluid volumes. . J Nucl Med. 1978; 19(10): 1138–1141.
- Seo Y, Shuke N, Yamamoto W, et al. Ruptured lymphocele as a cause of chylous ascites: demonstration by lymphoscintigraphy. Clin Nucl Med. 1999; 24(1): 60–61.
- Kim DW, Kim MH, Kim CG. Lymphoscintigraphy revealed chyloperitoneum after gastrectomy for gastric cancer. Clin Nucl Med. 2015; 40(1): 41–44.
- Weiss M, Schwarz F, Wallmichrath J, et al. Chylothorax and chylous ascites. Clinical utility of planar scintigraphy and tomographic imaging with SPECT/CT. Nuklearmedizin. 2015; 54(5): 231–240.
- Alavi A, Staum MM, Shesol BF, et al. Technetium-99m stannous phytate as an imaging agent for lymph nodes. J Nucl Med. 1978; 19(4): 422–426.
