Unknown Case - September, 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: 69 year old Male with past history of malignant melanoma

Specimen type: FNA of soft tissue mass of the right shoulder, ThinPrep® Non GYN

Patient information: Patient had multiple subcutaneous firm nodules on the left shoulder, right upper arm, left lower back, chest wall and right thigh. No unexplained weight loss or gain. Reports night sweats but no fever or chills.