Pit pattern for deep invasion?

A) IIIL

B) IV

C) Non‑structured Vi

D) Vn

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The answer is

D) Vn

Kudo’s Vn pit pattern (non-structural, with sparse or absent pits) corresponds to deep submucosal invasion (≥1000 μm). Non‑structured Vi (Type Vi-A/B) indicates high-grade dysplasia or superficial invasion.

This question and many more will be explored during our Global Event on June 5th!