Tongue Twisters
Important
These modules are archived and should only be referenced for historical purposes.
Some of the new terms included in ICD-O-3 are real tongue-twisters:
- Trichilemmocarcinoma
- Angiomyofibroblastoma
- Adenomyoepithelioma
- Ectomesenchymoma
- Cystadenocarcinofibroma
- Lymphangioleiomyomatosis
Tricilemmocarcinoma is in the basal cell series, 8102/3, and is reportable.
Angiomyofibroblastoma is a benign tumor in the fibroma series.
Adenomyoepithelioma is a benign tumor in the complex mixed and stromal neoplasms.
Ectomesenchymoma is a malignancy in the myomatous tumor series.
Cystadenocarcinofibroma is part of three new codes (8313/3 = clear cell cystadenocarcinofibroma ; 9014/3 = serous cystadenocarcinofibroma; and 9015 = mucinous cystadenocarcinofibroma) and is reportable.
And the winner (at 11 syllables!) is a borderline condition, lymphangioleiomyomatosis.
Suggested Citation
SEER Training Modules: Tongue Twisters. U.S. National Institutes of Health, National Cancer Institute. Cited 07 January 2026. Available from: https://training.seer.cancer.gov.