Juvenile psammomatoid ossifying fibroma: a review. 
In WHO classification of odontogenic tumors (2005), juvenile ossifying fibroma (JOF) is divided into juvenile psammomatoid ossifying fibroma (JPOF) and juvenile trabecular ossifying fibroma (JTOF).  JPOF has been distinguished because of its location, clinical behavior, and age of occurrence.  It is generally seen in younger age group and the most common site is paranasal sinuses, orbits, and fronto-ethmoidal complex.  Radiologically, the internal structure can be radiolucent, mixed, or radiopaque, depending on the degree of calcification and extent of the cystic changes.  Histologically, it is characterized by a densely cellular fibrous stroma interspersed with numerous psammoma bodies.  The treatment is "en bloc" surgical excision while in case of intracranial extension, tumor removal may need a combination of neurosurgical and transfacial approach.  Malignant transformation and metastasis has not been reported but recurrence is common.  The purpose of this narrative review article is to discuss the various aspects of JPOF reported in the English medical literature.