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July 2020 — Bone and Soft Tissue & Pulmonary

55 year old male with a right lower lobe lung mass. The mass is composed of a mixture of round cells with uniform nuclei, fine chromatin and monomorphic spindle cells. The cells are positive for CD56, CD117, TLE1 and BCOR. The cells are negative for DOG1, cytokeratins, synaptophysin, chromogranin, S100, smooth muscle actin, HMB45, Melan-A, p40 and desmin.

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Photo of Cecchini, Matthew J., M.D., Ph.D., F.R.C.P.C. Matthew Cecchini, M.D., Ph.D., F.R.C.P.C.
Fellow, Pulminary Pathology
Mayo Clinic
@Path_Matt
Photo of Joanne (Eunhee) E. Yi, M.D. Joanne (Eunhee) Yi, M.D.
Consultant, Anatomic Pathology
Mayo Clinic
Professor of Laboratory Medicine and Pathology
Mayo Clinic College of Medicine and Science
Photo of Jorge Torres-Mora, M.D. Jorge Torres-Mora, M.D.
Consultant, Anatomic Pathology
Mayo Clinic
Assistant Professor of Laboratory Medicine and Pathology
Mayo Clinic College of Medicine and Science
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MCL Education

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