Table 5.

Diagnoses of brainstem biopsies in adult and pediatric patients.

	Adult n (%)	Pediatric n (%)	Total n (%)
Midline glioma	3 (11.1)	5 (38.5)	8 (20.0)
Glioblastoma, IDH wildtype	3 (11.1)	2 (15.4)	5 (12.5)
Astrocytoma, IDH mutated	6 (22.2)	1 (7.7)	7 (17.5)
Astrocytoma with piloid features	1 (3.7)	0 (0.0)	1 (2.5)
Oligodendroglioma, IDH mutated, 1p/19q codeleted	1 (3.7)	0 (0.0)	1 (2.5)
Pilocytic astrocytoma	3 (11.1)	2 (15.4)	5 (12.5)
Glial tumor, NEC	3 (11.1)	0 (0.0)	3 (7.5)
Glioneuronal tumor	1 (3.7)	0 (0.0)	1 (2.5)
Papillary tumor of the pineal region	0 (0.0)	1 (7.7)	1 (2.5)
Metastasis	2 (7.4)	0 (0.0)	2 (5.0)
Other diagnoses than tumor	4 (14.8)	2 (15.4)	6 (15.0)
Total	27 (100)	13 (100)	40 (100)