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. 2021 Dec 7;11:23548. doi: 10.1038/s41598-021-02903-x

Table 2.

Clinical data of the 52 patients with available brain metastasis.

All (n = 57) Luminal B-like (n = 14) TNBC (n = 26) HER2+ (n = 17)
Age at diagnosis of BM (years)
Mean (SD) 53 (10.9) 55 (10) 54 (10.7) 49 (11)
Median (min; max) 53 (29; 75) 55 (40; 70) 56 (29; 72) 44 (36; 75)
Brain metastasis prior to other metastases
BM only 19 (33%) 5 (36%) 5 (19%) 9 (53%)
BM after extra cranial mets 22 (39%) 4 (28%) 13 (50%) 5 (29%)
BM before extra cranial mets 16 (28%) 5 (36%) 8 (31%) 3 (18%)
Location of BM
Cerebrum only 33 (58%) 8 (57%) 16 (62%) 10 (59%)
Cerebellum only 15 (26%) 5 (36%) 8 (31%) 2 (12%)
Multiple locations 9 (16%) 1 (7%) 2 (7%) 5 (29%)
Meningeal carcinosis 5 (9%) 1 (4%) 4 (24%)
Treatment for local control
None (material from autopsy) 2 (4%) 1 (4%) 1 (6%)
Surgical resection 16 (28%) 2 (14%) 10 (38%) 4 (24%)
Surgical resection followed 39 (68%) 12 (86% 15 (58%) 12 (70%)
By radiotherapy
Number of BM
1 48 (84%) 13 (93%) 23 (88%) 13 (76%)
2 or more 9 (16%) 1 (7%) 3 (12%) 4 (24%)