Clinical T

This input is used for staging

Notes

**Note 1:** When both the Federation Internationale de Gynecologie et d'Obstetrique (FIGO) stage and extension information on the primary tumor are available, use the extension information to assign the T in preference to a statement of FIGO stage - see Registrar notes. * If the only information is FIGO III [NOS] or IIIC, assign the appropriate stage and leave clinical T, N, and M blank. If the only information is FIGO stage IV, leave T and N blank and see M **Note 2:** Primary peritoneal carcinomas 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.

NAACCR Item

NAACCR #940
Clinical T Clinical T Display Description Registrar Notes
cX cTX Primary tumor cannot be assessed Clinical classification criteria met, evaluation done:
Physician unable to assess T
Extension cannot be determined OR
Physician assigns cTX, no other information available to determine T
c0 cT0 No evidence of primary tumor
c3 cT3 Tumor involves one or both ovaries
WITH microscopically confirmed peritoneal metastasis outside the pelvis and/or regional lymph node metastasis
Note: T3 has subcategories of T3a, T3b and T3c. Assign T3 only when there is no information available to assign one of the subcategories

Peritoneal implants, NOS

Stated as T3 [NOS]
c3A cT3a Microscopic peritoneal metastasis beyond pelvis Microscopic peritoneal implants beyond pelvis including:
Liver capsule
Mesentery
Omentum
Pericolic gutter

Microscopic peritoneal implants beyond pelvis including peritoneal surface/capsule of:
Ascending colon
Descending colon
Diaphragm
Esophagus
Gallbladder
Transverse colon and flexures
Small intestine
Spleen
Stomach
WITHOUT invasion of underlying structures

FIGO Stage IIIA

Stated as T3a
c3B cT3b Macroscopic peritoneal, metastasis beyond pelvis, 2 cm or less in greatest dimension Macroscopic peritoneal implants beyond pelvis less than or equal to 2 cm in diameter:
Ascending colon
Descending colon
Diaphragm
Esophagus
Gallbladder
Liver capsule
Mesentery
Omentum
Pericolic gutter
Transverse colon and flexures
Small intestine
Spleen
Stomach
WITH or WITHOUT invasion of underlying structures

FIGO Stage IIIB

Stated as T3b
c3C cT3c Peritoneal metastasis beyond pelvis, more than 2 cm in greatest dimension and/or regional lymph node metastasis Macroscopic peritoneal implants beyond pelvis greater than 2cm in diameter:
Ascending colon
Descending colon
Diaphragm
Esophagus
Gallbladder
Transverse colon and flexures
Liver
Small intestine
Spleen
Stomach
WITH or WITHOUT invasion of underlying structures

Extension to:
Bone
Cartilage

Further contiguous extension

Stated as T3c
88 88 Not applicable Primary site/histology not TNM defined
Death certificate only (DCO) case
<BLANK> BLANK See Registrar Notes Only information is FIGO Stage III [NOS], IIIC, or IV

Clinical classification not met
Clinical classification criteria met, evaluation done:
No information about diagnostic workup
Results not documented in record
Clinical evaluation of primary tumor not done or unknown if done
Tumor first detected on surgical resection (no clinical workup)
Evidence of metastatic disease [(cM1) or (pM1)], no other workup