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Ultrasound guided laser ablation of a parathyroid adenoma

¹Department of Endocrinology, Odense University Hospital, DK-5000 Odense C and ²Department of Diagnostic Radiology, Roskilde Hospital, University of Copenhagen, DK-4000 Roskilde, Denmark

View larger version (120K): [in a new window]   Figure 1. Diomed 15 laser power source with a 4 mm quartz laser fibre attached.

View larger version (87K): [in a new window]   Figure 2. (a) Pre-treatment longitudinal ultrasound of the neck showing a hypoechoic parathyroid tumour on the left side with the needle tract visible inside the tumour. (b) An echogenic area is seen centrally during interstitial laser photocoagulation.

View larger version (13K): [in a new window]   Figure 3. Serum concentrations of ionized calcium () and parathyroid hormone (PTH) (•) before ultrasound guided laser ablation of recurrent parathyroid tumour and at 1 month, 2 months, 3 months and 5 months into treatment. Interstitial laser photocoagulation (ILP) was given at 0 months, 1 month and 2 months. —, upper normal limit of serum ionized calcium; ......, upper normal limit of serum PTH.