Preoperative 18F-FDG PET/CT as a surgical triage tool for synchronous neoplasm detection in acute left-sided obstructive colorectal cancer: a two-institution retrospective cohort study - Takeaways - MDSpire

Utilizing Preoperative 18F-FDG PET/CT for Surgical Decision-Making in Identifying Synchronous Neoplasms in Acute Left-Sided Obstructive Colorectal Cancer: A Retrospective Study Across Two Institutions

  • By

  • Kyung Uk Jung

  • Sung Ryol Lee

  • Joosung Park

  • Hyung Ook Kim

  • Hungdai Kim

  • Hee-Sung Song

  • Ji Young Lee

  • Yong Bog Kim

  • Jaemin Jo

  • Ji Eun Park

  • Hyun Joo Song

  • Heung Up Kim

  • Weon Young Chang

  • Ho-kyung Chun

  • Donghyoun Lee

  • July 20, 2026

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  • 1

    The study evaluated the diagnostic performance of preoperative 18F-FDG PET/CT in detecting synchronous neoplasms in acute left-sided obstructive colorectal cancer.

  • 2

    149 patients with acute left-sided obstructive colorectal adenocarcinoma were included, with a median age of 69 years and 71.1% male.

  • 3

    Invasive synchronous colorectal cancer was confirmed in 9 patients (6.0%), while clinically significant neoplasms were found in 17 patients (11.4%).

  • 4

    For invasive synchronous colorectal cancer, PET/CT demonstrated a sensitivity of 77.8% and a specificity of 95.0%.

  • 5

    The study concluded that PET/CT is not a substitute for clearing colonoscopy and requires prospective validation of its findings.

Original Source(s)

Preoperative 18F-FDG PET/CT as a surgical triage tool for synchronous neoplasm detection in acute left-sided obstructive colorectal cancer: a two-institution retrospective cohort study

  • by Kyung Uk Jung, Sung Ryol Lee, Joosung Park, Hyung Ook Kim, Hungdai Kim, Hee-Sung Song, Ji Young Lee, Yong Bog Kim, Jaemin Jo, Ji Eun Park, Hyun Joo Song, Heung Up Kim, Weon Young Chang, Ho-kyung Chun, Donghyoun Lee

  • July 20, 2026

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