Flipping Book - TVD

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N-STAGING

CT

uses size criteria for

depiction of nodal

disease, with an overall

accuracy of only

45-60%.

EUS

uses several

criteria, i.e. size, shape,

echogenicity, and

borders, with an overall

accuracy of 75-85% for

local nodes.

PET

has relatively poor

sensitivity (50%) but

high specificity (85%),

and is useful in

detecting diseased

nodes

distant

to the

tumour