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. Author manuscript; available in PMC: 2012 Oct 9.
Published in final edited form as: Surgery. 2009 Dec;146(6):1144–1155. doi: 10.1016/j.surg.2009.09.015

Fig 2.

Fig 2

Functional and anatomical localization studies for patient with persistent phpt due to adenoma in right tracheoesophageal (TE) groove. (A) Parathyroid arterial stimulation venous sampling. Samples obtained from catheter placed in the superior vena cava. A pronounced (5-fold) step-up in parathyroid hormone (PTH) is demonstrated after sodium citrate (hypocalcemic stimulation) injection of right thyrocervical arterial bed. (B) and (C) Hypervascular mass (arrows) consistent with right TE-groove parathyroid adenoma demonstrated on computed tomography (B) and digitally subtracted arteriogram (C).