Thymoma (World Health Organization type B3) with neuroendocrine differentiation in multiple endocrine neoplasia type 1

<span class="paragraphSection"><div class="boxTitle">Abstract</div>Thymic epithelial tumors occur in 1–5% of patients with multiple endocrine neoplasia type 1 (MEN 1). Majority of these thymic epithelial tumors are thymic carcinoids and patients with thymoma in MEN 1 is rare. Furthermore, thymoma with neuroendocrine differentiation was also rarely reported. Herein, we report a 68-year-old man having type B3 thymoma with neuroendocrine differentiation in MEN 1 and to the best of our knowledge this is the first such case ever reported.</span>

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