Specimen:
Liver
Gallbladder
Other (specify):
Not specified

Procedure:
   Wedge resection
   Partial hepatectomy
   Major hepatectomy (3 segments or more)
   Minor hepatectomy (less than 3 segments)
   Total hepatectomy
   Other (specify):
   Not specified

Tumor Size:
Greatest dimension: cm
Additional dimensions: cm
Cannot be determined (see Comment)

Tumor Focality:
Solitary (specify location):
Multiple (specify locations):

Histologic Type:
Cholangiocarcinoma
Combined hepatocellular and cholangiocarcinoma
Bile duct cystadenocarcinoma
Other (specify):

Histologic Grade:
Not applicable
GX: Cannot be assessed
GI: Well differentiated
GII: Moderately differentiated
GIII: Poorly differentiated
GIV: Undifferentiated
Other (specify):

Tumor Growth Pattern:
Mass-forming
Periductal infiltrating
Mixed mass-forming and periductal infiltrating
Cannot be determined

Microscopic Tumor Extension:
   Cannot be assessed
   No evidence of primary tumor
   Tumor confined to the intrahepatic bile ducts histologically (carcinoma in situ)
   Tumor confined to hepatic parenchyma
   Tumor involves visceral peritoneal surface
   Tumor directly invades gallbladder
   Tumor directly invades adjacent organs other than the gallbladder (specify):

Margins:

Hepatic Parenchymal Margin:
Cannot be assessed
Uninvolved by invasive carcinoma, distance of invasive carcinoma from closest margin: mm at
Involved by invasive carcinoma

Bile Duct Margin:
Cannot be assessed
Uninvolved by invasive carcinoma:
       Dysplasia/carcinoma in situ not identified
       Dysplasia/carcinoma in situ present
Involved by invasive carcinoma

Other Margin Margin:
    Cannot be assessed
    Uninvolved by invasive carcinoma
    Involved by invasive carcinoma

Lymph-Vascular Invasion

Venous (Major Vessel) Invasion (V) (invasion of right or left portal vein, 1 or more hepatic veins):
Not identified
Present
Indeterminate

Small Vessel Invasion (L):
Not identified
Present
Indeterminate

Perineural Invasion:
    Not identified
    Present
    Indeterminate

Pathologic Staging (pTNM)

m (multiple primary tumors)
r (recurrent)
y (posttreatment)

Primary Tumor (pT):
pTX: Cannot be assessed
pT0: No evidence of primary tumor
pTis: Carcinoma in situ (intraductal tumor)
pT1: Solitary tumor without vascular invasion
pT2a: Solitary tumor with vascular invasion
pT2b: Multiple tumors, with or without vascular invasion
pT3: Tumor perforating the visceral peritoneum or involving the local extrahepatic structures by direct invasion
pT4: Tumor with periductal invasion

Regional Lymph Nodes (pN):
pNX: Cannot be assessed
pN0: No regional lymph node metastasis ( 0 / )
pN1: Regional lymph node metastasis ( / )
No nodes submitted or found

Distant Metastasis (pM):
    Not applicable
    pM1: Distant metastasis ( )

Additional Pathologic Findings:
       Cirrhosis/severe fibrosis (Ishak fibrosis score 5-6)
       Primary sclerosing cholangitis
       Biliary stones
       Chronic hepatitis (specify type):
       Other (specify):
       None identified

Ancillary Studies:

Clinical History:
       Cirrhosis
       Primary sclerosing cholangitis
       Inflammatory bowel disease
       Hepatitis C infection
       Other (specify):
       Not known

Comments: