1. Study Suggests Link Between Cell Phones and Brain Tumors - US News and World Report
Higher-quality data see danger from long-term use, new review finds

2. Immune Cells Shrink Tumors in Mice - US News and World Report
They target a protein found in some cancers, study finds

3. Leydig cell tumor  (Trust Mark: Doctor-Reviewed)
A Leydig cell tumor is a tumor of the testicle. It develops from Leydig cells - the cells in the testicles that release the male hormone, testosterone. • Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and James R. Mason, MD, Oncologist, Director, Blood and Marrow Transplantation Program and Stem Cell Processing Lab, Scripps Clinic, Torrey Pines, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

4. Sertoli-Leydig cell tumor  (Trust Mark: Doctor-Reviewed)
Sertoli-Leydig cell tumor is a rare cancer of the ovaries. The cancer cells produce and release a male sex hormone.• Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and James R. Mason, MD, Oncologist, Director, Blood and Marrow Transplantation Program and Stem Cell Processing Lab, Scripps Clinic, Torrey Pines, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.