Egested Feces Revealed Massive Protein Loss in 99mTc-HSA-D Scintigraphy

Yoji Matsusaka, Tadaki Nakahara, Yu Iwabuchi, Yoshiki Owaki, Hidetoshi Narimatsu, Masahiro Jinzaki

Research output: Contribution to journalArticlepeer-review


A 66-year-old man with severe diarrhea and severe hypoproteinemia was referred for 99mTc-DTPA-human serum albumin (HSA-D) scintigraphy. The scintigraphy at 24 hours postinjection showed strong accumulation of 99mTc-HSA-D in not only the colon but also all his diapers containing his egested feces. The ratio of the diapers counts to the total counts was 17.0%, and a considerable amount of protein loss was confirmed. 99mTc-HSA-D scintigraphy has an important role in diagnosing protein-losing enteropathy, but the abdomen is the only routinely scanned area. Additional scanning of egested radiotracer and the whole body can be useful for evaluating the disease severity.

Original languageEnglish
Pages (from-to)e329-e330
JournalClinical nuclear medicine
Issue number7
Publication statusPublished - 2020 Jul 1


  • Tc-human serum albumin-D scintigraphy
  • diaper
  • egested feces
  • protein-losing enteropathy

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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