RT - Journal Article T1 - Primary carcinoid or sex cord-stromal tumor of the testis. A case report JF - babol-caspjim YR - 2023 JO - babol-caspjim VO - 14 IS - 1 UR - http://caspjim.com/article-1-2697-en.html SP - 147 EP - 149 K1 - neuroendocrine tumor K1 - sex cord-stromal tumor of the testis K1 - testicular cancer Leydig K1 - Sertoli K1 - and granulosa cells K1 - testicular swelling AB - Background: Carcinoid tumors of the testis are rare and orchiectomy is the preferred treatment. This type of testis tumors is rare and their differentiation from sex cord-stromal tumors is difficult. Case presentation: A 29‑year‑old man presented with right testicular mass and underwent radical orchidectomy. Histological examination showed neuroendocrine tumor, confirmed by immunohistochemistry and electron microscopy (Ethic code: IR.MUMS.REC.1400.237). Conclusion: Primary testicular neuroendocrine tumor is very rare. It is crucial to submit the entire gross specimen for histopathologic examination to rule out an existing of other germ cell elements. Our patient had a well-differentiated carcinoid tumor and after two years of follow-up (every three months), there was no recurrence or metastasis. LA eng UL http://caspjim.com/article-1-2697-en.html M3 10.22088/cjim.14.1.147 ER -