Nomenclature System for Parathyroid Gland Location

 

• Figure 1 A and B: Nomenclature system for parathyroid location.

  • A type A gland is a “normal” superior gland in proximity to the posterior surface of the thyroid parenchyma:

    • It may be compressed within the capsule of the thyroid.

  • A type B gland is a superior parathyroid gland that has fallen posteriorly into the tracheoesophageal groove:

    • There is minimal or no contact between the gland and the posterior surface of the thyroid tissue.

  • A type C gland is a superior gland that has fallen posteriorly into the tracheoesophageal groove and lies at the level of or below the inferior pole of the thyroid.

  • The type D gland lies in the mid region of the posterior surface of the thyroid parenchyma, near the junction of the RLN and the inferior thyroid artery:

    • The type D gland may be either a superior or inferior gland, depending on its exact relationship to the nerve, which generally cannot be determined on imaging.

  • The type E gland is an inferior gland in close proximity to the inferior pole of the thyroid parenchyma anterior to the trachea.

  • The type F gland is an inferior gland that has descended into the thyrothymic ligament or superior thymus:

    • It may appear to be “ectopic” or within the mediastinum.

  • A type G gland is a rare intrathyroidal parathyroid gland.

 

• Reference:

  • Rodgers SE, Hunter GJ, Hamberg LM, et al. Improved preoperative planning for directed parathyroidectomy with 4-dimensional computed tomography. Surgery 2006;140(6):932–940.)

 

Rodrigo Arrangoiz MS, MD, FACS cirujano de tumores de cabeza y cuello / cirugia endocrina miembro de Sociedad Quirúrgica S.C. experto en el manejo delhiperparatiroidismo primario.

 

Entrenamiento:

• Cirugia general y gastrointestinal:

• Michigan State University:

• 2004 al 2010

• Cirugia oncológica / tumores de cabeza y cuello / cirugia endocrina:

• Fox Chase Cancer Center (Filadelfia):

• 2010 al 2012

• Maestria en ciencias (Clinical research for healthprofessionals):

• Drexel University (Filadelfia):

• 2010 al 2012

• Cirugia de tumores de cabeza y cuello / cirugiaendocrina

• IFHNOS / Memorial Sloan Kettering Cancer Center:

• 2014 al 2016

http://www.sociedadquirurgica.com

http://www.hiperparatiroidismo.info

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