[Pelvic muscular metastasis of well differentiated thyroid carcinoma]

Authors report on a case of one intramuscular metastasis from a non-medullary differentiated thyroid carcinoma. Muscular metastasis are rare in this pathology. Moreover, body-scanning scintigraphic interpretation is difficult for the pelvic area. False-positive are numerous and a very precise topographical diagnosis is required to choose the best surgical approach. Authors propose a specific management of different imaging methods for such a metastatic site. They associate a CT scan and a multiplanar iodine and technetium scintigraphy.