Difference between revisions of "Warthin tumour"
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'''Warthin tumour''' is a relative common benign tumour of the parotid gland. It is also known as '''papillary cystadenoma lymphomatosum'''. | '''Warthin tumour''' is a relative common benign tumour of the parotid gland. It is also known as '''papillary cystadenoma lymphomatosum'''. | ||
==General== | |||
*Benign. | |||
Epidemiology: | Epidemiology: | ||
*May be multicentric ~ 15% of the time. | *May be multicentric ~ 15% of the time. | ||
| Line 36: | Line 38: | ||
*Classically: male > female -- changing with more women smokers. | *Classically: male > female -- changing with more women smokers. | ||
*Smokers. | *Smokers. | ||
*Old - | *Old - usually 60s, very rarely < 40 years old. | ||
Notes: | Notes: | ||
| Line 44: | Line 46: | ||
*Not in children. | *Not in children. | ||
==Gross== | |||
*Motor-oil like fluid. | *Motor-oil like fluid. | ||
*Cystic component larger in larger lesions. | *Cystic component larger in larger lesions. | ||
Revision as of 23:44, 13 July 2013
| Warthin tumour | |
|---|---|
| Diagnosis in short | |
 Warthin tumour. H&E stain. | |
|
| |
| LM | papillae with a two rows of pink (eosinophilic) epithelial cells (with cuboidal basal cells and columnar luminal cells), fibrous capsule, cystic space filled with debris, lymphoid stroma |
| LM DDx | lymphoepithelial cyst. |
| Site | salivary gland - parotid gland only |
|
| |
| Clinical history | strong association of smoking |
| Prevalence | uncommon |
| Prognosis | good, benign |
| Clin. DDx | other salivary gland tumours |
Warthin tumour is a relative common benign tumour of the parotid gland. It is also known as papillary cystadenoma lymphomatosum.
General
- Benign.
Epidemiology:
- May be multicentric ~ 15% of the time.
- May be bilateral ~10% of the time.
- Classically: male > female -- changing with more women smokers.
- Smokers.
- Old - usually 60s, very rarely < 40 years old.
Notes:
- No malignant transformation.
- Not in submandibular gland.
- Not in sublingual gland.
- Not in children.
Gross
- Motor-oil like fluid.
- Cystic component larger in larger lesions.
- Small lesions may be solid.
Image:
Microscopic
Features:
- Papillae (nipple-shaped structures) with a two rows of pink (eosinophilic) epithelial cells (with cuboidal basal cells and columnar luminal cells) -- key feature.
- Fibrous capsule - pink & homogenous on H&E stain.
- Cystic space filled with debris in situ (not necrosis).
- Lymphoid stroma.
Notes:
- +/-Squamous differentiation.
- +/-Goblet cell differentiation.
DDx:
- Lymphoepithelial cyst.
- Cyst within a lymph node.
Images
Warthin tumour - high mag. (WC/Nephron)
Warthin tumour - intermed. mag. (WC/Nephron)
