Collaborative Stage

Collaborative Stage for TNM 7 - Revised 01/17/2010 [ Schema ]

PeritoneumFemaleGen

CS Extension

Note 1: In some cases, a primary peritoneal adenocarcinoma may not involve the ovaries or only involve the ovaries with minimal surface implants. The clinical presentation, surgical therapy, chemotherapy, and prognosis of these peritoneal tumors mirror those of papillary serous carcinoma of the ovary. Patients who undergo prophylactic oophorectomy for a familial history of ovarian cancer appear to retain a 1 to 2% chance of developing peritoneal adenocarcinoma, which is histopathologically and clinically similar to primary ovarian cancer.
Note 2: This schema is for female primary peritoneal adenocarcinoma only.
Note 3: If a tumor is also found in the ovary, please use the ovary schema.
Note 4: For AJCC TNM staging, all peritoneal lesions are considered deep lesions.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
100	OBSOLETE DATA RETAINED V0200 Tumor confined to site of origin	ERROR	*	L	L
300	OBSOLETE DATA RETAINED V0200 Localized, NOS	ERROR	*	L	L
400	OBSOLETE DATA RETAINED V0200 Adjacent connective tissue see definition of adjacent connective tissue in General Instructions.	ERROR	*	RE	RE
600	OBSOLETE DATA RETAINED V0200 Adjacent organs/structures including bone/cartilage Retroperitoneum: Adrenal(s) (suprarenal gland(s)) Aorta Ascending colon Descending colon Kidney(s) Pancreas Vena cava Vertebra Peritoneum: Colon (except ascending and descending colon) Esophagus Gallbladder Liver Small intestine Spleen Stomach	ERROR	*	RE	RE
700	Microscopic peritonealimplants beyond pelvis, including peritoneal surface/capsule of Colon (except ascending and descending colon) Esophagus Gallbladder Liver Small intestine Spleen Stomach	T3a	*	L	L
705	FIGO Stage IIIA	T3a	TX	L	L
710	Macroscopic peritoneal implants beyond pelvis, less than or equal to 2 cm in diameter, including peritoneal surface of Esophagus Abdominal mesentery Diaphragm Gallbladder Infracolic omentum Kidneys Large intestine except rectum and sigmoid colon Liver (peritoneal surface) Omentum Pancreas Pericolic gutter Small intestine Spleen Stomach Ureters Peritoneum, NOS	T3b	*	D	D
715	FIGO Stage IIIB	T3b	TX	D	D
720	Peritoneal implants beyond pelvis, greater than 2 cm in diameter, including peritoneal surface of Esophagus Abdominal mesentery Diaphragm Gallbladder Infracolic omentum Kidneys Large intestine except rectum and sigmoid colon Liver (peritoneal surface) Omentum Pancreas Pericolic gutter Small intestine Spleen Stomach Ureters Peritoneum, NOS	T3c	*	D	D
730	FIGO Stage IIIC	T3c	TX	D	D
750	Peritoneal implants, NOS	T3NOS	*	L	L
780	FIGO Stage III [NOS]	T3NOS	TX	L	L
785	Adjacent connective tissue (see definition of adjacent connective tissue in General Instructions)	T3NOS	*	D	D
790	Adjacent organs/structures including bone/cartilage Peritoneum: Colon (except ascending and descending colon) Esophagus Gallbladder Liver Small intestine Spleen Stomach	T3c	*	D	D
795	Further contiguous extension, including: extension to ascending or descending colon	T3c	*	D	D
800	Further contiguous extension	T3NOS	*	D	D
950	No evidence of primary tumor	T0	T0	U	U
999	Unknown extension Primary tumor cannot be assessed Not documented in patient record	TX	TX	U	U

* For codes 100, 300, 400, 600, 700, 710, 720, 750 and 785-800 ONLY. The T category is assigned based on value of CS Tumor Size, as shown in the Extension Size Table for this site.