Improved understanding of the etiology of carcinoid-tumor-related fibrosis may lead ... might be secreted from other organs, such as the ovary, from which 5-HT is thought to reach the circulation ...

He subsequently developed dyspnea on exertion. Diagnosis. Carcinoid tumor of midgut origin with large segment 3 liver metastasis. Carcinoid syndrome and carcinoid heart disease. Management.