Trait
Endolymphatic sac tumor
A low-grade papillary epithelial neoplasm (adenocarcinoma) with a slow growth pattern. The endolymphatic duct emerges from the posterior wall of the saccule (of the inner ear) and ends in a blind pouch, the endolymphatic sac. Endolymphatic sac tumors (ELSTs) are known under different names in the literature (Heffner tumor, aggressive papillary middle ear tumor, and low-grade adenocarcinoma of endolymphatic sac origin).
Summary
- Also called
- Aggressive papillary middle ear tumor, Aggressive papillary middle ear tumour, Endolymphatic sac tumour, Heffner tumor, Heffner tumour, Low-grade adenocarcinoma of endolymphatic sac origin
- Body system
- Abnormality of the earAbnormal tissue mass
Reference genomeGRCh38hg38
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Changes in these genes cause rare conditions in which Endolymphatic sac tumor is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.
How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.
Broader traits
Where this comes from
- The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
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