Case / Uniphasic or Biphasic? / EGFR Positive (Y/N)? / EGFR
Squamous Distribution / EGFR
Squamous Intensity / EGFR
Spindle Cell Distribution / EGFR
Spindle Cell Intensity
1 / Biphasic / Yes / 2 / 2 / 2 / 2
2 / Biphasic / Yes / 3 / 3 / 0 / 0
3 / Biphasic / Yes / 2 / 1 / 0 / 0
4 / Biphasic / Yes / 1 / 1 / 0 / 0
5 / Biphasic / Yes / 1 / 2 / 0 / 0
6 / Biphasic / Yes / 3 / 1 / 1 / 1
7 / Biphasic / No / 0 / 0 / 0 / 0
8 / Biphasic / Yes / 2 / 1 / 0 / 0
9 / Biphasic / Yes / 3 / 2 / 1 / 1
10 / Biphasic / Yes / 3 / 3 / 0 / 0
11 / Biphasic / Yes / 3 / 3 / 0 / 0
12 / Biphasic / Yes / 3 / 3 / 1 / 1
13 / Biphasic / Yes / 4 / 3 / 2 / 2
14 / Biphasic / Yes / 4 / 3 / 3 / 3
15 / Biphasic / Yes / 4 / 3 / 0 / 0
16 / Biphasic / Yes / 3 / 2 / 1 / 2
17 / Biphasic / Yes / 2 / 1 / 2 / 2
18 / Biphasic / Yes / 3 / 3 / 0 / 0
19 / Biphasic / Yes / 4 / 3 / 1 / 2
20 / Monophasic / No / N/A / N/A / 0 / 0
21 / Monophasic / No / N/A / N/A / 0 / 0
22 / Monophasic / No / N/A / N/A / 0 / 0
23 / Monophasic / Yes / N/A / N/A / 4 / 3
24 / Monophasic / No / N/A / N/A / 0 / 0
25 / Monophasic / No / N/A / N/A / 0 / 0
26 / Monophasic / No / N/A / N/A / 0 / 0
27 / Monophasic / No / N/A / N/A / 0 / 0
28 / Monophasic / Yes / N/A / N/A / 1 / 2
29 / Monophasic / No / N/A / N/A / 0 / 0
30 / Monophasic / Yes / N/A / N/A / 2 / 2

Supplementary Table 1 – EGFR immunohistochemistry results for each individual case of spindle cell carcinoma.

(EGFR = epidermal growth factor receptor)