Table 3.

Median COMDist value (mm) comparison for three training approaches, of each subtype classifier on its corresponding mutation class data.

	BRAF Status	TransferX	Scratch	RadImageNet
Internal Validation (n=59)	Wild-Type	38.02	41.54 (p=0.09)	39.48 (p=0.46)
	BRAF Fusion	25.8	27.14 (p=0.49)	26.13 (p=0.86)
	BRAF V600E	33.02	36.86 (p=0.09)	34.40 (p=0.52)
External Validation (n=112)	Wild-Type	27.8	28.11 (p=0.90)	34.2 (p=0.009)
	BRAF Fusion	28.0	29.7 (p=0.47)	28.7 (p=0.76)
	BRAF V600E	23.03	25.24 (p=0.40)	25.21 (p=0.40)