PathWays Case Studies: January 2018
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January 2018 — Anatomic Pathology
A 46-year-old woman presented for surgical management of endometriosis and underwent a total hysterectomy and bilateral salpingo-oophorectomy. In addition to typical-appearing leiomyomata, a well-circumscribed, soft, yellow tumor was identified.
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Amy A. Swanson, M.D.
Resident, Anatomic Pathology/Neuropathology
Mayo Clinic
J. Kenneth Schoolmeester, M.D.
Consultant, Division of Anatomic Pathology
Mayo Clinic
Assistant Professor of Laboratory Medicine and Pathology
Mayo Clinic College of Medicine
January 2018 — Liver Pathology
This case study reviews a 24-year-old man with a large solitary liver mass.
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Nooshin Karamzadeh Dashti, M.D. Fellow, Surgical Pathology Mayo Clinic |
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Rondell Graham, M.B.B.S. Senior Associate Consultant, Anatomic Pathology Mayo Clinic Assistant Professor of Laboratory Medicine and Pathology Mayo Clinic College of Medicine |
January 2018 — Hematopathology 1
A 70-year-old female presented with peripheral blood lymphocytosis and hepatosplenomegaly. Below are the peripheral blood and bone marrow aspirate findings:
Karyotype cytogenetics revealed inv(14)(q11q32), with the rearrangement involving the TCL1 oncogene (confirmed by FISH).
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Basma Basha, M.D. Fellow, Hematopathology Mayo Clinic |
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Rebecca L. King, M.D. Consultant, Division of Hematopathology Mayo Clinic Assistant Professor of Laboratory Medicine and Pathology Mayo Clinic College of Medicine |
January 2018 — Hematopathology 2
A 49-year-old HIV-positive gentleman presents to his local medical center with cervical lymphadenopathy without a known associated pleural effusion. A needle core biopsy is performed. Within the perinodal soft tissue (top of Figure 1A), there is an atypical infiltrate of large pleomorphic cells (Figure 1). These cells do not express cytokeratin (Cam 5.2 or OSCAR), SOX10, CD3, CD20, CD30, CD45, or CD79a. These cells do express CD43, CD138, and MUM1 (Figure 2). Both in situ hybridization studies for Epstein-Barr virus (EBV) and an immunohistochemical stain for human herpes virus 8 (HHV-8) are positive (Figure 3).
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Justin Juskewitch, M.D., Ph.D. Resident, Anatomic/Clinical Pathology Mayo Clinic |
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Karen Rech, M.D. Consultant, Division of Hematopathology Mayo Clinic Assistant Professor of Laboratory Medicine and Pathology Mayo Clinic College of Medicine |
