The most common cancers to include the leptomeninges are breast cancer , lung cancer , and melanomas .
Leptomeninges can metastasize to the subarachnoid space in the brain which offers a hospitable environment for the growth of metastatic tumor cells .
The most common cancers to include the leptomeninges are breast cancer , lung cancer , and melanomas because they can metastasize to the subarachnoid space in the brain which offers a hospitable environment for the growth of metastatic tumor cells .