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Cancer - Principles & Practice of Oncology
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F7_3.CAP
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1999-06-07
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FIGURE 32.7-3. For tumors that lie between two pedicles, lymphatic
flow may drain in either or both directions. From a study of cleared
specimens, it was possible to determine the preferential route by the
location of lymphatic metastases. The numbers above signify the
percentage of metastasizing carcinomas in the above locations that
have demonstrated positive nodes along a given vascular route. For
example, node-positive tumors lying between the ileocolic and right
colic arcades metastasize along the ileocolic pedicle in 100% of cases
and along the right colon in 12% of cases. (Hertzer FP, Slanetz CA.
Patterns and significance of lymphatic spread from cancer of the colon
and rectum. In: Weiss L, Gilbert HA, Ballon SC, eds. Lymphatic system
metastasis. Boston: GK Hall, 1980:283)