Liver mass staging: Difference between revisions
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The table below summarizes the staging system for malignant liver mass, based on 3 factors: tumor size, lymph node invasion, and metastasis. | The table below summarizes the staging system for malignant liver mass, based on 3 factors: tumor size, lymph node invasion, and metastasis. | ||
{| | {| | ||
! colspan=" | !Staging factor | ||
! colspan="2" |Stage | |||
!Description | |||
|- | |- | ||
| rowspan="7" |Size | |||
| colspan="2" |TX | | colspan="2" |TX | ||
|Primary tumor cannot be assessed | |Primary tumor cannot be assessed | ||
Line 33: | Line 36: | ||
|The tumor has grown into nearby organs (other than the gallbladder) '''or''' | |The tumor has grown into nearby organs (other than the gallbladder) '''or''' | ||
The tumour has grown into the layer of tissue that covers the organs in the abdomen (visceral peritoneum) | The tumour has grown into the layer of tissue that covers the organs in the abdomen (visceral peritoneum) | ||
|- | |- | ||
| rowspan="3" |Nodes | |||
| colspan="2" |NX | | colspan="2" |NX | ||
|Regional lymph nodes cannot be assessed | |Regional lymph nodes cannot be assessed | ||
Line 44: | Line 46: | ||
| colspan="2" |N1 | | colspan="2" |N1 | ||
|Regional lymph node metastasis | |Regional lymph node metastasis | ||
|- | |- | ||
| rowspan="2" |Metastasis | |||
| colspan="2" |M0 | | colspan="2" |M0 | ||
|No distant metastasis | |No distant metastasis |
Revision as of 20:39, 29 November 2018
Liver Mass Microchapters |
Diagnosis |
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Treatment |
Case Studies |
Liver mass staging On the Web |
American Roentgen Ray Society Images of Liver mass staging |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Maria Fernanda Villarreal, M.D. [2]
Overview
According to the American Joint Committee on Cancer (AJCC) staging system, there are 4 stages of malignant liver mass, based on 3 factors: tumor size, lymph node invasion, and metastasis. Each stage is assigned a letter and a number that designate T for tumor size, N for node invasion, and M for metastasis. There is no staging for benign lesions.[1]
Staging
The table below summarizes the staging system for malignant liver mass, based on 3 factors: tumor size, lymph node invasion, and metastasis.
Staging factor | Stage | Description | |
---|---|---|---|
Size | TX | Primary tumor cannot be assessed | |
T0 | No evidence of primary tumour | ||
T1 | A single tumor with no invasion into the blood vessels of the liver | ||
T2 | A single tumor with invasion into the blood vessels or multiple tumors, none more than 5 cm in size | ||
T3 | T3a | Multiple tumors, with any tumor larger than 5 cm | |
T3b | The tumour has grown into either the portal or hepatic vein | ||
T4 | The tumor has grown into nearby organs (other than the gallbladder) or
The tumour has grown into the layer of tissue that covers the organs in the abdomen (visceral peritoneum) | ||
Nodes | NX | Regional lymph nodes cannot be assessed | |
N0 | No regional lymph node metastasis | ||
N1 | Regional lymph node metastasis | ||
Metastasis | M0 | No distant metastasis | |
M1 | Distant metastasis |