[Verse 1] Arterial phase blooming on the screen, celiac axis branching like a winter tree, hepatic left, splenic arching wide, we map the variants before we go inside. Water fills the stomach, gas distends the folds, five bright layers on the ultrasound scroll — mucosa, muscularis, the echo gaps between, EUS is reading every wall we've never seen. [Chorus] T through N through M, correlate the cut, lesser sac behind, mesenteric planes in front, arterial phase for vessels, portal phase for wall, PET goes dark on signet ring — it won't show all. Read the scan like a surgeon reads the field, every layer tells you what the knife might yield, CT, EUS, and PET, triangulate the stage — then you write the operation on a different page. [Verse 2] The Z-line marks the junction, squamous meeting red, diaphragmatic pinch sits just a centimeter ahead. Retroflex the scope to see the cardia wrap, Hill grade one through four — is the flap intact? Prague classification codes the Barrett's tongue, C for circumferential, M for how far it's run. The incisura angles at the lesser curve, the pylorus guards the exit — every landmark serves. [Chorus] T through N through M, correlate the cut, lesser sac behind, mesenteric planes in front, arterial phase for vessels, portal phase for wall, PET goes dark on signet ring — it won't show all. Read the scan like a surgeon reads the field, every layer tells you what the knife might yield, CT, EUS, and PET, triangulate the stage — then you write the operation on a different page. [Bridge] Fluoroscopy spills the volvulus twist, organoaxial rotation — nothing missed, upper GI series traces every leak, the Roux limb pathway for the post-bariatric seek. Laparoscopic ports reframe the hiatus view, thirty-degree lens tilts the angle anew, staging laparoscopy, the peritoneal wash — cytology positive means the margins are lost. T1 and T2 blur on contrast CT scan, small peritoneal seeds escape the imaging plan — that's why the scope descends before the blade, to catch what density alone could never grade. [Verse 3] GIST sits beneath the mucosa, smooth and round, EUS layers four and five is where it's found, hypoechoic mass within the muscularis — endoscopic biopsy won't reach what's hiding there. Subepithelial lesions need the layered eye, lipoma, carcinoid, varices — don't misidentify. Compression from outside reads like a submucosal mound, EUS resolves the question without making a sound. [Chorus] T through N through M, correlate the cut, lesser sac behind, mesenteric planes in front, arterial phase for vessels, portal phase for wall, PET goes dark on signet ring — it won't show all. Read the scan like a surgeon reads the field, every layer tells you what the knife might yield, CT, EUS, and PET, triangulate the stage — then you write the operation on a different page.
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