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. 2020 Dec 23;10:606574. doi: 10.3389/fonc.2020.606574

Table 2.

Comparison between CONVIVO®, frozen section, and permanent section at the tumor margin.

TUMOR MARGINS
DIAGNOSIS MORPHOLOGICAL CATEGORIZATION
Pt. n° CONVIVOANALYSIS SAMPLE B1(FROZEN SECTION) Concordance CONVIVOANALYSIS SAMPLE B2(PERMANENT SECTION) Concordance CONVIVOANALYSIS SAMPLE B1(FROZEN SECTION) Concordance CONVIVOANALYSIS SAMPLE B2(PERMANENT SECTION) Concordance
1 Tumor High-grade glioma +/− Tumor with blood GBM
(IV grade WHO 2016)
+/− Marginal infiltrated tissue Tumor tissue Infiltrated tissue Tumor tissue
Necrosis
Vascular proliferation
2 Infiltrated nervous tissue
Blood
Tumor (anaplastic glioma)
Side with infiltrated nervous tissue
Blood
+ Infiltrated nervous tissue
Blood
HGG Marginal infiltrated tissue Tumor tissue
Infiltrated tissue

+
Marginal infiltrated tissue Tumor tissue with blood
3 Infiltrated nervous tissue
High cellularity
Nervous tissue infiltrated by tumor + Infiltrated nervous tissue Giant cells GBM
(IV Grade WHO 2016)
Infiltrated tissue Tumor tissue (mostly)
Infiltrated tissue

+
Infiltrated tissue Tumor tissue
Necrosis
Vascular proliferation
4 Tumor (not high cellularity)
Presumable necrosis
Giant cells GBM +/− Tumor (not high cellularity)
Presumable necrosis
Giant cells GBM
(IV Grade WHO 2016)
+/− Infiltrated tissue
Likely necrosis
Tumor tissue
Necrosis
Vascular proliferation

+
Infiltrated tissue
Likely necrosis
Tumor tissue
Necrosis
Vascular proliferation

+
5 Tumor
necrosis
GBM +/− Tumor
necrosis
GBM
(IV grade WHO 2016)
+/− Tumor tissue
Necrosis
Tumor tissue
Vascular proliferation
+
Tumor tissue
Necrosis
Tumor tissue
Necrosis
+
+
6 Infiltrated nervous tissue at borders GBM
Micronecrosis
Infiltrated nervous tissue at borders Nervous tissue infiltrated by GBM
(IV grade WHO 2016)
+ Infiltrated tissue Tumor tissue
Necrosis
Vascular proliferation
Infiltrated tissue Infiltrated tissue +
7 Infiltrated nervous tissue at borders
Blood
HGG
Tumor tissue
Infiltrated tissue
+/− Infiltrated nervous tissue at borders
Blood
HGG +/− Infiltrated tissue Tumor tissue
Infiltrated tissue

+
Infiltrated tissue Tumor tissue
Infiltrated tissue

+
8 Tumor tissue on a side
Infiltrated nervous tissue and borders on the other side
Tumor tissue on a side
Infiltrated nervous tissue and borders on the other side
+ Infiltrated nervous tissue GBM
(IV grade WHO 2016)
Tumor tissue
Infiltrated tissue
Tumor tissue
Infiltrated tissue
+
+
Infiltrated tissue Tumor tissue
Necrosis
Vascular proliferation
9 Highly infiltrated nervous tissue GBM—Tumor tissue
Necrosis
Highly infiltrated nervous tissue Mostly necrotic tissue with marginal GBM Infiltrated tissue Tumor tissue
Infiltrated tissue
Infiltrated tissue Tumor tissue
Necrosis
10 Tumor tissue
Infiltrated nervous tissue
GBM—Tumor tissue and necrosis +/− Tumor tissue
Infiltrated nervous tissue
GBM
(IV grade WHO 2016)
+/− Tumor tissue
Infiltrated tissue
Tumor tissue
Necrosis
Vascular proliferation
+

Tumor tissue
Infiltrated tissue
Tumor tissue
Necrosis
Vascular proliferation
+

11 Tumor tissue
Infiltrated nervous tissue
GBM—Tumor and necrosis
Side with infiltrated nervous tissue
+/− Tumor tissue
Infiltrated nervous tissue
GBM
(IV grade WHO 2016)
+/− Tumor tissue
Infiltrated tissue
Tumor tissue
Necrosis
Infiltrated nervous tissue
+
Tumor tissue
Infiltrated tissue
Tumor tissue
Necrosis
Infiltrated nervous tissue
+

+
12 Tumor tissue
Infiltrated nervous tissue
GBM
Tumor tissue and infiltrated tissue
+/− Tumor
Infiltrated nervous tissue
GBM
(IV grade WHO 2016)
+/− Tumor tissue
Infiltrated tissue
Tumor tissue
Infiltrated tissue
+
+
Tumor tissue
Infiltrated nervous tissue
Tumor tissue
Infiltrated tissue
+
+
13 Infiltrated nervous tissue
Mostly blood
GBM: slightly infiltrated nervous tissue
Tumor tissue: vascular proliferation and blood
Infiltrated nervous tissue
Mostly blood
GBM
(IV grade WHO 2016), but mostly blood
Infiltrated nervous tissue
Blood
Infiltrated nervous tissue
Tumor tissue
Vascular proliferation
Blood
+

Infiltrated nervous tissue
Blood
Tumor tissue
Necrosis
Vascular proliferation

+
14 Tumor tissue GBM
Tumor tissue
Necrosis
+/− Tumor tissue GBM
(IV grade WHO 2016)
+/− Tumor tissue Tumor tissue
Necrosis
+
Tumor tissue Tumor tissue
Necrosis
Vascular proliferation
+

15 Infiltrated nervous tissue
Tumor tissue
Infiltrated nervous tissue
Tumor tissue
+ Infiltrated nervous tissue
Tumor tissue
GBM
(IV grade WHO 2016)
+/− Infiltrated nervous tissue
Tumor tissue
HGG—Tumor (80%)
Infiltrated nervous tissue (20%)
+
+
Infiltrated nervous tissue
Tumor tissue
Tumor tissue
Necrosis
Vascular proliferation
+