Fukuoka-positive IPMNs are those that have high-risk stigmata for malignancy. These include IPMNs:
IPMNs with Fukuoka “worrisome features” are those with:
Fukuoka-negative IPMNs are those without high-risk stigmata and without the “worrisome features” described above.
It is clear from these guideline criteria that the classification of IPMNs is now no longer carried out on the basis of their size and/or main duct or branch duct involvement but must be done in a highly differentiated way. Criteria such as contrast-absorbing mural nodules < 5 mm or ≥ 5 mm in size can really only be reliably assessed with high-resolution contrast-enhanced harmonic endoscopic ultrasound (CH-EUS), or less precisely with magnetic resonance imaging (MRI) (Figs. 1–5).
Read the Article: https://www.endoscopy-campus.com/en/klassifikationen/fukuoka-guidelines/