Evidence‐based approaches

Rationale

Indications

Intrathecal administration has proved to be of benefit in prophylactic treatment in cases of leukaemias and some lymphomas, where the CNS may provide a sanctuary site for tumour cells not reached during systemic chemotherapy (Wilkes [268]). It can also be used for metastasis to the brain or leptomeninges from solid tumours, lymphoma and leukaemia (Aiello‐Laws and Rutlidge [2]).