0001440 Metatarsal synostosis	0010366 Triangular shaped phalanges of the 3rd toe	0100474 Symphalangism affecting the proximal phalanx of the 4th toe
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0100485 Symphalangism of the proximal phalanx of the 4th toe with the 4th metatarsal

synonym

Fused innermost bone of the 4th toe with 4th long bone of foot