<prompt> A patient with GCT which of the following is false:-Epiphyseo-metaphyseal locationEccentricDefined marginsChemotherapy is the mainstay of treatment  <response>: GCT occurs in epiphyseao-metaphyseal area. It is eccentric in location and goes till the joint. It is a locally aggressive tumor with defined margins. The treatment of choice is extended curettage with autograft. 