Maltoma of the thyroid associated to Graves'disease is not such a frequently described association. We report a case of Maltoma of the thyroid gland in a patient with Grave's disease. The diagnosis was established by histological examination after total thyroidectomy. Slow enlargement of the thyroid gland despite a clinically successful antithyroid drug therapy could be considered as an advocating clinical manifestation. Associated anti-neoplastic chemotherapy and cervical irradiation resulted in good outcome with six years follow-up. A review is presented on treatment and prognosis of these tumors.
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Primary thyroid B-cell lymphoma: molecular insights into its clonal evolution and relapse.
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Department of Pathology, University of Cambridge, Cambridge, UK.
Primary thyroid lymphomas comprise largely extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (EMZL) and diffuse large B-cell lymphoma (DLBCL), followed by follicular lymphoma (FL). They commonly develop from a background of Hashimoto's thyroiditis (HT), where dysregulated immune responses trigger autoreactive infiltrates and drive clonal B-cell evolution. To understand how these lymphomas and their relapse evolve, we investigated 10 cases by mutation profiling, including five with metachronous lymphomas [primary lymphoma (EMZL = 4, DLBCL = 1) with local relapse (EMZL = 3, DLBCL = 2)], one composite EMZL and Epstein-Barr virus (EBV)-positive DLBCL, and four lymphomas (EMZL = 3, FL = 1) with prior or subsequent biopsy showing HT.
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Background: This study characterizes lymphomas presenting as palpable head and neck masses and evaluates the role of fine needle aspiration (FNA) and flow cytometry (FC) in diagnosis.
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Department of Pathology, Duke University Medical Center, Durham, NC, USA. Electronic address:
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