"Staging Up Pulmonary Lymphatics Shows Precise Spread Patterns, Predicting How Intrapulmonary Lesions Spread Systematically"
"S: supraclavicular"
"U: upper paratracheal"
"P: prevascular/retrotracheal"
"S: subaortic"
"P: para-aortic"
"S: subcarinal"
"P: paraoesophageal"
"P: pulmonary ligament"
"H: hilar"
"S: segmental"
"S: subsegmental"
Expected headings
"Mnemonic"