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152  Atlas of Small Animal CT and MRI


              Figure 1.11.13  Parathyroid Carcinoma (Canine)                                              MR





















             (a) US, SP                       (b) T1, SP                       (c) T2, SP
             12y M Golden Retriever with hypercalcemia. There is a hypoechoic nodule seen in the cranial pole of the left thyroid lobe on ultrasound
             (a: calipers). On MR imaging, the mass is isointense on T1 images and hyperintense on T2 images (c: white arrow) within the thyroid
             gland (c: black arrows). The histologic diagnosis was documented on postmortem examination.





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