Rat Tail Tapering

Rat Tail Tapering

Gallbladder A descriptive term for the abrupt tapering of the bile duct in primary bile duct carcinoma
Heart A descriptive term for a smooth progressive narrowing to a point of maximal stenosis of the left anterior descending coronary artery, seen by angiography
Lung A descriptive term for the abrupt loss of normal bronchial arborization in bronchography due to intraluminal neoplasms—e.g., bronchogenic carcinoma
Oesophagus A descriptive term for the irregularly marginated tapering of the oesophagus seen in achalasia
Pancreas A descriptive term for the abrupt narrowing of the pancreatic duct in ERCP, a finding in pancreas cancer
Urinary tract A term of art for a rugose narrowing of the ureter seen on an IVP, which is typical of transitional cell carcinoma

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rat tail tapering

Imaging Heart A descriptor for a smooth progressive narrowing to a point of maximal stenosis of the left anterior descending coronary artery, seen by angiography. Cf Bridging Lung A descriptor for the abrupt loss of normal bronchial arborization in bronchography due to intraluminal neoplasms–eg, bronchogenic carcinoma Pancreas A descriptor for the abrupt narrowing of the pancreatic duct in ERCP, a finding in pancreas CA. See Endoscopic retrograde cholangiopancreatography.