Fig. 1A–C.

(A) A clinical photograph shows the extent of the swelling and malformation. Contrasting with the normal right extremities, the length and circumference of the left upper and lower extremities obviously are increased. (B) A clinical photograph shows the left forearm and wrist are swollen compared with the right forearm and wrist. (C) A clinical photograph shows the left fingers are excessively overgrown, resembling dilated balloons; the wrist was 80° flexed and stiff.