Hemangiopericytoma/solitaryfibrous tumor of mandible: A rare entity.

The fourth edition of the World Health Organization (WHO) classification of tumors of soft tissue and bone “blue book” that was published in February 2013 has abandoned the term “HPC.” It is used only to describe a morphological pattern that is shared by different entities. Currently, solitary fibrous tumor (SFT), HPC, lipomatous HPC and giant cell angiofibroma are all grouped under the “extra‑pleural SFT” category.