Unknown Case - March, 2015

Following are 5 slide images with unknown diagnosis. Use your ThinPrep® diagnostic skills to identify this disorder. After you've studied the slides, scroll to the bottom and click on the Book of Answers to display the diagnosis.

Patient information: 9 year old male

Specimen type: FNA of right pre-tragal soft tissue mass, ThinPrep® Non GYN

Patient information: 2.7 x 1.2 cm right pre-tragal soft tissue mass without aggressive characteristics on CT scan.