Biopsie pour tumeurs des os

Because it consists in only a partial sampling of a lesion which is frequently polymorphic, biopsy of a bone tumor includes a risk for erroneous or inaccurate diagnosis. To minimize this risk it is necessary to perform large samplings (through the most limited approach, however), to provide the pathologist with all necessary clinical and radiological documents, to confront the biopsy results with the radio-clinical context; to realize biopsies as often as possible in specialized units, especially if there is any suspicion of malignancy. Surgical and percutaneous biopsies are complementary techniques, with each its own indications and limitations. The course of percutaneous biopsy must be precisely and indelibly located, always chosen according to the planed surgical treatment, what induces good intuition and knowledge of the tumoral pathology. In malignant tumors, the biopsy course should be excised as a single piece with the piece of resection; therefore, both biopsy and surgical treatment should preferentially be performed by the same medical team.