Innervation of the Nipple Areolar Complex (NAC):

  • The innervation of the nipple areolar complex (NAC):
    • Is from the anterior and lateral branches of the 3rd, 4th, and 5th intercostal nerves:
      • Of which the lateral cutaneous branch of the 4th intercostal is dominant
  • This nerve has the greatest risk of injury during a resection of the central lower pole of the breast:
    • A superior pedicle, with resection of the lower pole:
      • Has the highest incidence of NAC sensory compromise
    • All patients should be advised that there is a risk of permanent loss of sensation
  • References
    • Riccio CA, Zeiderman MR, Chowdhry S, Brooks RM, Kelishadi SS, Tutela JP, et al. Plastic surgery of the breast: keeping the nipple sensitive. Eplasty. 2015;15:e28.
    • Chiummariello S, Angelisanti M, Arleo S, Alfano C. Evaluation of the sensitivity after reduction mammoplasty. Our experience and review of the literature. Ann Ital Chir.2013;84(4):385-388.
    • Schlenz I1, Rigel S, Schemper M, Kuzbari R. Alteration of nipple and areola sensitivity by reduction mammaplasty: a prospective comparison of five techniques. Plast Reconstr Surg. 2005;115(3):743-751.

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