Premium
Relationship between primary colorectal tumour and location of colorectal liver metastases
Author(s) -
Pathak Samir,
Palkhi Ebrahim,
Dave Rajiv,
White Alan,
Pandanaboyana Sanjay,
Prasad K. Raj,
Lodge J. Peter A.,
Toogood Giles J.
Publication year - 2016
Publication title -
anz journal of surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.426
H-Index - 70
eISSN - 1445-2197
pISSN - 1445-1433
DOI - 10.1111/ans.12767
Subject(s) - medicine , portal vein , colorectal cancer , radiology , lobe , left lobe , metastasis , oncology , pathology , cancer
Background There is conflicting evidence regarding whether streamlining of blood flow within the portal vein influences the anatomical distribution of colorectal liver metastases ( CRLM ). This study assesses the relationship between primary tumour location and metastases location. Methods Patients were identified using a prospectively maintained database, and those with known site of primary colorectal tumour and hemiliver involvement were included. Site of metastases and segments affected were confirmed via review of the radiology reports. The location of primary colonic tumour was confirmed via review of clinical correspondence letters. Results A total of 2364 metastases were identified in 891 patients. Of these, 379 metastases were in the right lobe and 156 in the left lobe, with 356 having bilobar disease. There was no significant relationship between the distribution of CRLM and the site of primary disease (left colon versus right colon) ( P = 0.819). However, when the segmental location of the metastases was considered, there is a statistically significant difference between the number of right‐sided CRLM compared with left‐sided CRLM ( P < 0.001). Conclusions Right‐sided CRLM is more likely regardless of the primary location. Portal streaming may have an effect, although the natural anatomical ‘angulation’, particularly of the left portal vein branch is more likely to play a role.