Myoepithelioma of the head and neck
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Myoepithelioma of the head and neck, also myoepithelioma, is a salivary gland tumour of the head and neck that is usually benign.[1]
As the name suggests, it consists of myoepithelial cells. Classically, they are found in the parotid gland or palate.[1] A similar tumor type may be found in the tongue, referred to as ectomesenchymal chondromyxoid tumor.
Pathology[edit | edit source]
The myoepithelial cells may be spindled, plasmacytoid, eithelioid or clear. Tubules or epithelium are absent, or present in a small amount (<5%) by definition. Tumours with myoepithelial cells and a large amount of tubules are classified as pleomorphic adenomas (which must also contain the characteristic chondromyxoid stroma, which is normally absent in myoepithelioma).
Diagnosis[edit | edit source]
Myoepitheliomas are diagnosed from an examination of the tissue by a pathologist.
Low mag.
High mag.
Treatment[edit | edit source]
Benign myoepithelioma are treated with simple excision. They are less prone to recurrence than pleomorphic adenoma.
See also[edit | edit source]
References[edit | edit source]
- ↑ Jump up to: 1.0 1.1 , Myoepithelioma of the head and neck: case report and review., J Surg Oncol, Vol. 28(Issue: 1), pp. 21–8, DOI: 10.1002/jso.2930280107,
- ↑ , Ectomesenchymal chondromyxoid tumor of the anterior tongue. Nineteen cases of a new clinicopathologic entity, Am J Surg Pathol, Vol. 19, pp. 519–30, DOI: 10.1097/00000478-199505000-00003, PMID: 7726361, Full text,
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