Tumour induced osteomalacia due to a sinonasal hemangiopericytoma: A case report

Figure 1 Bilateral radiographs of femurs. Arrows indicate Looser’s zones.

Figure 2 Octreotide scan demonstrating uptake in the sinus area.

Figure 3 Photomicrograph demonstrating spindle cell neoplasm with prominent thin-walled branching vasculature. The tumour is comprised of short fascicles of cells with pale eosinophilic cytoplasm and bland ovoid nuclei. There is conspicuous extravasation of erythrocytes (haematoxylin and eosin, × 200).