A Survey of Pathological Diagnosis Based on WHO Criteria and Endoscopic Findings of Colorectal Serrated Lesions

A Survey of Pathological Diagnosis Based on WHO Criteria and Endoscopic Findings of Colorectal Serrated Lesions - Pathology and Endoscopy of Colorectal Serrated Lesions

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000058269

Enrollment

400

Registered

2025-06-25

Start date

2025-06-25

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

colorectal serrated lesions

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients diagnosed with colorectal serrated lesions based on the 2010 WHO diagnostic criteria between May 2013 and August 2018, and based on the 2019 WHO diagnostic criteria between January 2020 and December 2024.

Exclusion criteria

Exclusion criteria: Patients diagnosed with serrated lesions between September 2018 and December 2019

Design outcomes

Primary

Measure	Time frame
Detection rate of SSAP or SSL per colonoscopy	—

Secondary

Measure	Time frame
1. Maximum diameter of SSAP or SSL 2. Morphology of SSAP or SSL (protruded type or flat type) 3. Location of SSAP or SSL detection (right colon, left colon, or rectum) 4. Presence of dysplasia in SSAP or SSL 5. Frequency, maximum diameter, morphology, detection site, and presence of dysplasia in serrated lesions other than SSAP or SSL	—

Countries

Japan

Contacts

Public ContactKazutomo Togashi

Fukushima Medical University Department of Gastroenterology, Aizu Medical Center

togashik@fmu.ac.jp0242-75-2100

Outcome results