Location

Lesser curvature & posterior wall; antrum

Anywhere

Crater Shape

Round, ovoid

Irregular

Radiating Folds

Smooth, symmetric; extend to crater lip

Nodular, fused; do not extend to crater lip

Penetration

Projects outside lumen margin

Remains inside lumen margin

Ulcer Mound

Smooth

Irregular; rolled edge

Peristalsis

Normal

Abnormal

Other

Ulcer collar; Hampton's line

Rigid adjacent wall; Carman Meniscus sign

Healing

Improved within 2-3 weeks of treatment; resolution in 6 weeks

Fails to improve or resolve with medical therapy