PMC5255994_01
Positron emission tomography scintigraphy revealed large lytic expansile lesion in left occipital bone including the clivus and occipital condyles with erosion of the mastoid and temporal bone
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F1
Somatostatin positron emission tomography (PET) scintigraphy was done which revealed a large lytic expansile lesion in left occipital bone including the clivus and occipital condyles with erosion of the mastoid and temporal bone [Figure 1].
Magnetic resonance imaging brain with contrast confirmed a large left occipitotemporal bone tumor with lytic lesion
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F2
Another MRI brain with contrast confirmed a left occipitotemporal bone space occupying lesion (SOL) [Figure 2].
(a) Tumor histopathology shows grungy matrix with osteoclast-like giant cells and mononuclear cell infiltration suggestive of phosphaturic mesenchymal tumor (b) tumor histopathology shows osteoclast-like multinucleated giant cells and mononuclear cells infiltration suggestive of phosphaturic mesenchymal tumor
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Histopathology of tumor was consistent with the diagnosis of a phosphaturic mesenchymal tumor [Figure 3].