Diagnosis

Ultrasonography: 80% accurate; part of the

initial assessment. Demonstrates polypoidal

mass without acoustic shadow with localized

thickening. Loss of GB/liver interface found in

advance cancer.

Limitation in diagnosis of involved nodes and

staging of the disease

􀂄 Endoscopic ultrasound improves diagnosis of

GB cancer and predicts depth of tumor.

Helpful for differential diagnosis of polypoid

lesions.