Role of Adenotonsillectomy and Tonsillectomy in Children with Down Syndrome Who Develop Obstructive Sleep Apnea by Obesity as a Risk Factor

Figure 2

Representation of trisomy 21 through fluorescent in situ hybridization technique. (a) Normal cell showing the signal pattern 2 red, 2 green, and 2 blue and (b) abnormal cell showing the signal pattern 3 red, 2 green, and 2 blue indicating trisomy 21 (Down syndrome).

(a) Normal cell

(b) Trisomy 21 cell