Pediatric Mets

This input is used for staging

Notes

**Note 1:** Code 00 for benign (behavior /0) and borderline (behavior /1) tumors. **Note 2:** Leptomeningeal metastases, also known as carcinomatous meningitis and meningeal carcinomatosis, refers to the spread of malignant cells through the CSF space. These cells can originate from primary CNS tumors (e.g., in the form of drop metastases), as well as from distant tumors that have metastasized via hematogenous spread (code 70).

Default

NAACCR Item

NAACCR #1138

Code	Description
00	No distant metastasis
10	Distant lymph node(s)
70	Metastasis within CNS and CSF pathways * Carcinomatous meningitis * Drop metastasis * Leptomeningeal metastases * Meningeal carcinomatosis Metastasis outside the CNS Extra-neural metastasis Carcinomatosis Distant metastasis WITH or WITHOUT distant lymph node(s) Distant metastasis, NOS
99	Unknown; distant metastasis not stated Not documented in medical record Death Certificate Only

(1) Aitken JF, Youlden D, O’Neill L, Gupta S, Frazier AL, eds. Childhood cancer staging for population registries according to the Toronto Childhood Cancer Stage Guidelines – Version 2. Cancer Council Queensland and Cancer Australia: Brisbane, Australia; 2021.