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. 2014 Jan 1;24(1):52–59. doi: 10.1089/thy.2013.0338

FIG. 5.

FIG. 5.

Histologic evaluation of thyroarytenoid (TA) muscle atrophy at the level of the vocal process. (A) The cross-sectional areas of TA muscles in the silicone tube group. (B) The cross-sectional areas of TA muscles in the PCL/F127 NGC group. The cross-sectional areas of TA muscles were measured using Image J by tracing their outlines on microscopic images. *, atrophied TA muscle due to denervation of RLN in the silicone tube group; arrow, compensated TA muscle due to reinnervation of the RLN in the PCL/F127 NGC group. (C) The mean area ratio of the denervated TA muscles to the control side was significantly greater in the PCL/F127 NGC group (86.51±3.59%) than in the silicone tube group (77.34±1.03%; n=20; *p<0.05).