thymoma type A
Findings
No curated finding names thymoma type A yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
A thymic epithelial neoplasm characterized by the presence of spindle and/or oval neoplastic epithelial cells. Lymphocytic infiltration is minimal or absent. It may be associated with myasthenia gravis or pure red cell aplasia. The majority of cases occur in the anterior mediastinum as Masaoka stage I tumors. Approximately 20% of the cases occur as stage II or stage III tumors. Type A thymoma generally behaves as a benign tumor and the overall survival is reported to be 100% at 5 and 10 years.
Definition from the Mondo Disease Ontology (MONDO:0002588), read 2026-09-29. CC BY 4.0.
Where it sits
- A kind of
- Narrower terms (1)
Other names
5 names
Resolves to: thymoma type A
- Also called
- medullary thymomaprimary thymic epithelial neoplasm type Aprimary thymic epithelial tumor type Aprimary thymic epithelial tumour type Aspindle cell thymoma