A rare malignant primary thymic neoplasm originating from neuroendocrine cells presenting as a mass within the anterior mediastinum. Patients typically present with nonspecific symptoms such as chest pain cough shortness of breath or in some cases superior vena cava syndrome although patients could be asymptomatic during the early stages or present with multiple endocrine neoplasia type I. Ectopic production of ACTH and serotonin can lead to Cushing syndrome and carcinoid syndrome respectively.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version June 2026
Newly diagnosed with
Thymic neuroendocrine tumor?
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Advocacy Organizations
Neuroendocrine Cancer Awareness Network Inc
The Neuroendocrine Cancer Awareness Network (NCAN) is a non-profit organization dedicated to raising awareness of Neuroendocrine Cancer, providing support for caregivers and people with NETs, and funding for NET cancer research. Since 2003, it has been our mission, or as we like to say, our passion, to educate and support the NET community as a whole. That’s our thing.
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Clinical Trials
For a list of clinical trials in this disease area, please click here.