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. Author manuscript; available in PMC: 2020 Jan 1.
Published in final edited form as: Brain Pathol. 2018 Oct 17;29(1):126–140. doi: 10.1111/bpa.12646

Table 1:

Clinicopathologic and Molecular Features of Pilocytic Astrocytoma with Anaplasia (PA-A)

CASE Age Sex Location NF1
clinical
status
History of
Radiation
Temporal PA
precursor
Extent of
Resection
Necrosis ALT ATRXIHC IDH1(R132H) p53 IHC BRAF
Duplication
BRAF (V600E) H3-K27M p16 IHC CDKN2A (FISH or NGS) Other Treatment for
precursor
Status
1 17 M Cerebellum Sporadic No Yes STR Yes POSITIVE Lost Negative* Strongly positive Negative Negative* Negative* observation Dead
2 68 M fourth ventricle Sporadic No No STR Yes POSITIVE Lost Negative negative Negative Negative Negative loss No mutation NF1 p.E595Nfs*14, c.1783_1784delGA; ATRX p.T1239fsN*10, c.3715dupA Dead
3 13 F Cerebellum Sporadic No No GTR Yes POSITIVE Lost Negative* negative Alive
4 12 F cerebellum NF1 No No Yes NEGATIVE Preserved Negative* focal Negative* Negative* Partial loss Dead
5 22 M Pineal NF1 No No STR No POSITIVE Lost Negative* Negative* Dead
6 74 F cerebellum Sporadic Yes Yes POSITIVE partial Negative* Strongly positive Unknown Dead
7 40 F Lateral ventricle Sporadic Yes Yes STR Yes POSITIVE partial Negative* focal Negative Negative Negative* loss Irradiation Alive
8 31 M Spinal cord Sporadic Yes Yes Yes POSITIVE Lost Negative* Strongly positive Positive Negative* Negative* loss Irradiation Alive
9 53 F Cerebellum Sporadic Yes Yes Yes POSITIVE Lost Negative* Strongly positive Positive Negative positive No mutation H3F3A p.K27M, ATRX p. R1739X, TP53 I255S irradiation +temozolomide Alive
10 66 M Cerebellum Sporadic Yes Yes No POSITIVE Preserved Negative* focal Negative* Negative* irradiation +chemo Alive
11 12 M 3rd ventricle Sporadic No No STR Yes NEGATIVE Preserved Negative* focal Negative Negative* Negative* loss Alive
12 3 M L hemisphere Sporadic No No GTR Yes NEGATIVE Preserved Negative* Negative Negative* Negative* Partial loss Alive
13 4 M Posterior fossa Sporadic No No STR Yes POSITIVE Lost Negative* Strongly positive Negative Negative* positive Partial loss No mutation H3F3A p.K27M, KRAS p.Q61H, TP53 p.C275F, ATRX p.E1767, ATRX p.R2085 Dead
14 22 F Cerebellum Sporadic yes Yes Yes POSITIVE lost Negative* focal Positive Negative* Negative* loss irradiation +chemo Alive
15 24 M Cerebellum NF1 No Yes GTR No POSITIVE lost Negative* focal Negative Negative Negative* No mutation NF1 mutation, STAG2 p.R1207T mutation, ATRX p.Q219fs deletion, LOH observation Alive
16 36 M Cerebellum Sporadic No Yes GTR Yes POSITIVE lost Negative* focal Positive Negative* observation Alive
17 5 M Cerebellum Sporadic No GTR No NEGATIVE Preserved Negative* Positive Negative* Partial loss no deletion Alive
18 36 F cerebellum Sporadic No No No POSITIVE lost Negative* Negative Negative* Positive Partial loss no deletion Alive
19 46 F R temporal lobe NF1 No No GTR No NEGATIVE Preserved Negative* Negative Negative* Negative* preserved Dead
20 75 M L temporal lobe Sporadic No No GTR No NEGATIVE Preserved Negative* Negative Negative Negative* partial loss no deletion Dead
21 29 M cerebellum NF1 No No STR No POSITIVE Lost Negative* Negative Negative* Negative* homozygous deletion observation Dead
22 10 M 3rd ventricle Sporadic No No STR No POSITIVE Lost Negative* Negative Negative* Positive No deletion Dead
23 70 M cerebellum Sporadic No No Yes NEGATIVE Preserved Negative* Negative Negative* Negative* homozygous deletion Dead
24 28 M cerebellum Sporadic Yes Yes Yes POSITIVE Negative* Negative* Negative* Irradiation Dead
25 11 M R frontal lobe Sporadic No No GTR Yes NEGATIVE Preserved Negative* Negative Negative Negative* No deletion Alive
26 11 F R occipital lobe NF1 No No GTR No NEGATIVE Preserved Alive
27 14 M cerebellum Sporadic No No Yes NEGATIVE Preserved Negative* Negative* Dead
28 20 M cerebellum Sporadic No No Yes POSITIVE lost Negative* Positive Negative* Negative* No deletion Dead
29 27 M cerebellum Sporadic Yes Yes GTR Yes POSITIVE Lost Negative* Positive Negative* Negative* Homozygous deletion Irradiation Dead
30 39 F cerebellum Sporadic Yes Yes Yes POSITIVE Lost Negative* Positive Negative* Negative* No deletion Irradiation Dead
31 46 M L parietal lobe NF1 No Yes STR Yes POSITIVE Lost Negative* Negative* Negative* observation Dead
32 73 F tectum Sporadic No Yes STR Yes POSITIVE Preserved Negative Negative Negative Negative* No deletion observation Dead
33 51 M spinal cord Sporadic No No STR No POSITIVE partial Negative* Negative Negative* Positive No deletion or mutation H3F3A p.K27M, ATRX pS856del, NF1 p.L2398M, AKT1 p.R206S, BRAF p.L64I, TSC1 p.G389 fs Dead
34 18 M L parietal lobe NF1 No Yes NEGATIVE Preserved focal Negative* loss Alive
35 25 F Tectum Sporadic Yes Yes No POSITIVE Preserved Negative* focal Negative Negative Negative No mutation NF1 p.R816*, NF1 p.A2099D, H3F3A p.A115G Irradiation Alive
36 20 F R cerebellum Sporadic No No STR Yes POSITIVE Preserved Negative* Strongly positive Negative BRAF p.D594G Negative loss No mutation NF1 p.Y1545* NF1 p.K1440* Alive

NF1=neurofibromatosis type 1, STR=subtotal resection, GTR=Gross total resection, PA=pilocytic astrocytoma, ALT=alternative lenghtening of telomeres, IHC=immunohistochemistry

*

Evaluated by immunohistochemistry