BILATERAL DOUBLE LOOPED ANSA CERVICALIS WITH ABSENCE OF INFERIOR ROOT- A CASE REPORT

Ansa cervicalis frequently shows variations in its formation and distribution pattern. Knowledge on the possible deviations in the looping pattern is clinically important, to avoid iatrogenic injuries in surgical procedures. We report a case of bilateral double looped Ansa cervicalis with the absence of inferior root. On both sides, the classical presentation of the inferior root of Ansa cervicalis is lacking. On the right side, C2 and C3 roots join the descendens hypoglossi immediately one below the other whereas on the left side they join the descendens hypoglossi at two different levels. Ansa cervicalis is being popularly used for nerve reconstructive surgery in treating paralyzed larynx, tongue hemi atrophy. Anatomical variations of Ansa cervicalis may be fatal during these surgical procedures.

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