Which of the following is NOT a common route of metastasis for solid tumors?

Which of the following is NOT a common route of metastasis for solid tumors?

Step 1: Understand what metastasis means. Metastasis is when cancer cells spread from the original (primary) tumor to other parts of the body.
Step 2: Learn about common routes of metastasis. Solid tumors usually spread through three main ways: hematogenous (through the blood), lymphatic (through the lymphatic system), and transcoelomic (across body cavities).
Step 3: Identify the option that is NOT a common route. Direct contact spread means the tumor cells spread by touching nearby tissues, which is not a typical way for solid tumors to metastasize.
Step 4: Conclude that direct contact spread is the correct answer to the question, as it is not a common route of metastasis for solid tumors.

No concepts available.