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Figure 2: Magnetic resonance imaging (MRI) brain 2. Sagittal section of the brain of a patient with history of Carcinoma of the breast. Following a subsequent MRI showed osteolytic lesion (50 mm) of the clivus with an extraosseous portion (25 mm) in the anterior epidural space. Initially, it was suspected to be a metastasis. The immunohistochemical study of the lesion showed it was positive for epithelial membrane antigen, cytokeratin and S-100 protein. The diagnosis of chordoma was established

Figure 2: Magnetic resonance imaging (MRI) brain 2. Sagittal section of the brain of a patient with history of Carcinoma of the breast. Following a subsequent MRI showed osteolytic lesion (50 mm) of the clivus with an extraosseous portion (25 mm) in the anterior epidural space. Initially, it was suspected to be a metastasis. The immunohistochemical study of the lesion showed it was positive for epithelial membrane antigen, cytokeratin and S-100 protein. The diagnosis of chordoma was established