🧬 SyndromeScope
Syndrome reference sheet
Generated 12 Oct 2026
Cardiology · Cardiology / Oncologic cardiology Carcinoid heart disease
Also known as: Hedinger syndrome; Hedinger–Jones syndrome
Right-sided valvular fibrosis from serotonin-secreting neuroendocrine tumors.
- Medical specialty
- Cardiology
- Subspecialty
- Cardiology / Oncologic cardiology
- Sex & age distribution
- Male: affected; Female: affected; Children: rare
- Gene(s) involved
- MEN1
Etiology & mechanism
Serotonin and vasoactive substances cause plaque-like fibrous deposits on right heart valves.
Gene(s) involved (1)
MEN1
Symptoms & signs (8)
diarrheaedemafatigueflushingpulmonary stenosisright heart failuretricuspid regurgitationwheezing