A possible new syndrome with growth-hormone secreting pituitary adenoma, colonic polyposis, lipomatosis, lentigines and renal carcinoma in association with familial testicular germ cell malignancy: A case report |
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Authors: | Phuong L Mai Larissa Korde Joan Kramer June Peters Christine M Mueller Susan Pfeiffer Constantine A Stratakis Peter A Pinto Gennady Bratslavsky Maria Merino Peter Choyke W Marston Linehan Mark H Greene |
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Institution: | 1. Department of Pathology, University of Miami, Miami, Florida, USA 2. Department of Ophthalmology, University of Miami, Miami, Florida, USA 3. Department of Surgery, University of Miami, Miami, Florida, USA
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Abstract: | Introduction Cytofluorographic and molecular techniques are effective adjuncts in diagnosing intraocular lymphoma. Primary intraocular lymphoma is an uncommon entity predominantly of B cell origin and rarely with a T cell phenotype. The aim of the present paper is to report a case of a CD8-positive, TCR-α/β-negative intraocular T cell lymphoma and review the literature. Case presentation T cell neoplasia was detected based on flow cytometric demonstration of an abnormal T cell population and polymerase chain reactions for immunoglobulin and T-cell receptor rearrangements demonstrating evidence of monoclonality. Flow cytometry revealed a T cell population aberrantly expressing T-cell lineage markers. This T cell population expressed CD2, bright CD3, CD8, bright CD7, CD38, CD69, and variable CD25. T-cell receptor γ gene rearrangement studies demonstrated evidence of T-cell gene rearrangement confirming that the T cells were monoclonal. Conclusion We herein report the rare case of a TCR α/β-negative CD8+ intraocular T-cell lymphoma suggestive of gamma/delta origin diagnosed by flow cytometry and polymerase chain reaction. |
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