Collaborative Stage Data Set - Revised 05/26/2013 FINAL

Pleura

CS Site-Specific Factor 2
Histologic Subtype

Note: Histologic subtype has prognostic significance in pleural mesothelioma. The pure epithelioid tumors are associated with a better prognosis then the biphasic or sarcomatoid tumors. Desmoplastic tumors appear to have the worst prognosis.

Code	Description
000	No histologic subtype stated
010	Epithelioid (9052)
020	Biphasic (9053) (At least 10% of both epithelioid and sarcomatoid components)
030	Sarcomatoid (9051)
040	Desmoplastic (9051)
050	Other histologic subtype
888	OBSOLETE DATA CONVERTED V0200 See code 988 Not applicable for this site
988	Not 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.)
998	No pathologic examination of primary site
999	Unknown or no information Not documented in patient record