Policies and reporting guidelines for small biopsy specimens of mediastinal masses.

Policies and Reporting Guidelines for Small Biopsy Specimens of Mediastinal Masses Alberto Marchevsky, Alex Marx, Philipp Strobel, Saul Suster, Federico Venuta, Mirella Marino, Samuel Yousem, Maureen Zakowski Department of Pathology and Laboratory Medicine, Cedars Sinai Medical Center, Los Angeles, California; Department of Pathology, University Medical Center Mannheim, Mannheim, Germany; Department of Pathology and Laboratory Medicine, Medical College of Wisconsin, Mil-waukee, Wisconsin; Department of Thoracic Surgery, University of Rome La Sapienza, Rome, Italy; Department of Pathology, Regina Elena National Cancer Institute, Rome, Italy; Department of Pathology, UPMCPresbyterian University Hospital, Pittsburgh, Pennsylvania; Department of Pathology, Memorial Sloan Kettering Cancer Center, New York