Differential diagnosis of epithelioid and clear cell tumors in the liver |
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Institution: | 1. Department of Medical Oncology, British Columbia Cancer Agency, Vancouver, British Columbia, Canada;2. Department of Pathology and Laboratory Medicine and Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada;1. Department of Obstetrics and Gynecology, Buddhist Tzu Chi General Hospital, Tzu Chi University, Hualien, Taiwan;2. Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan;3. Department of Pathology, Buddhist Tzu Chi General Hospital, Tzu Chi University, Hualien, Taiwan;1. Service de médecine nucléaire et de cancérologie endocrinienne, Gustave Roussy, université Paris-Saclay, 114, rue Édouard-Vaillant, 94805 Villejuif cedex, France;2. Service de radiologie, Gustave Roussy, université Paris-Saclay, 94805 Villejuif, France;3. Service de pharmacologie, Gustave Roussy, université Paris-Saclay, 94805 Villejuif, France;4. Inserm UMRS-1185, université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France |
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Abstract: | A tumor composed of large eosinophilic cells in the liver raises concern for hepatocellular carcinoma, which is typically composed of such cells. However, there are other tumors, both primary and metastatic, that may be composed predominantly of large epithelioid cells. Distinction of these tumors from hepatocellular carcinoma and from each other is of obvious importance for patient management. Similarly, a clear cell tumor anywhere in the body triggers suspicion for renal cell carcinoma. However, other tumors, including hepatocellular carcinoma can rarely be composed entirely of cell cells and the distinction of these from one another, and of primary from metastatic disease is vital. As with the latter, accurate diagnosis is essential for patient management. Using illustrative examples, this article discusses differential diagnosis of liver tumors comprised predominantly of epithelioid cells or clear cells. |
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Keywords: | Epitheliod tumors Clear cell tumors Angiomyolipoma Epithelioid hemangioendothelioma Clear cell hepatocellular carcinoma |
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