Ryan Brent Peterson MD, Presenter: Nothing to Disclose

Douglas Edward Lukins MD, Abstract Co-Author: Nothing to Disclose

Gamaliel Lorenzo MD, Abstract Co-Author: Nothing to Disclose

Nilesh Desai MD, Abstract Co-Author: Nothing to Disclose

The pterygopalatine fossa (PPF) is a complex anatomic structure forming a crossroad between the intracranial compartment and external environment via neural and vascular pathways. Lesions arising or spreading through the PPF have severe clinical consequences as this pathway provides direct access to the cavernous sinus, orbit, skull base, nasal cavity and infratemporal fossa. The purpose of this educational exhibit is to illustrate the wide variety of pathologies in the pediatric population that affect the PPF, either primarily or by direct extension. Understanding these lesions is critical in the diagnosis, treatment planning and follow up within this susceptible population.

Cross sectional and 3D illustrations of the PPF will be used to demonstrate the anatomic basis of disease. Pterygopalatine fossa masses will be classified and reviewed as follows: benign tumors, malignant tumors, inflammatory lesions, and developmental lesions. Illustrative cases will be provided and summary of their diagnostic features will be discussed.

The PPF is a complex network which forms the crossroads for important neural and vascular structure and provides a pathway for disease spread to critically important anatomic regions. The various benign, malignant, inflammatory and developmental lesions of the PPF in children will be reviewed.

Peterson, R, Lukins, D, Lorenzo, G, Desai, N, The Great Escape: The Many Routes Pediatric Tumors Take through the Pterygopalatine Fossa.  Radiological Society of North America 2012 Scientific Assembly and Annual Meeting, November 25 - November 30, 2012 ,Chicago IL. http://archive.rsna.org/2012/12025147.html