Collaborative Stage Data Set - Revised 08/07/2013 FINAL


CS Site-Specific Factor 2
Pleural/Elastic Layer Invasion (PL) by H and E or Elastic Stain

000PL 0
No evidence of visceral pleural invasion (PL)
Tumor does not completely traverse the elastic layer
010PL 1
Invasion beyond the visceral elastic pleura, but limited to the pulmonary pleura
Tumor extends through the elastic layer
020PL 2
Invasion to the surface of the pulmonary pleura
Tumor extends to the surface of the visceral pleura
030PL 3
Tumor extends to the parietal pleura
040Invasion of pleura, NOS
See code 988

Not applicable for this site
988Not applicable:  Information not collected for this case
(May include cases converted from code 888 used in CSv1 for "Not applicable" or when the item was not collected.  If this item is required to derive T, N, M, or any stage, use of code 988 may result in an error.)
998No histologic examination of pleura to assess pleural layer invasion
999Unknown if PL present
PL/elastic layer cannot be assessed
Not documented in patient record

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