Pleomorphic
adenoma also known as “mixed tumor” is the most common neoplasm in major
salivary glands. It is a benign tumor arises from the parotid gland in 84% ofcases and represents 45% of parotid gland tumors. Only 6.5% are found in the
minor salivary glands.
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| Neck Cancer |
Salivary gland tumors occurring in ectopic
sites are rare and poorly understood; sometime we can find heterotopic tissue
arising from an aberrant salivary gland in external auditory canal, nasal
cavity, tongue, tonsils and neck. The presence of pleomorphic adenoma in the
upper neck, along the anterior border of the sternocleidomastoid muscle is
extremely rare. Only five cases of ectopic mixed salivary gland tumors in the
upper neck in adult patients have been reported. This article describes another
case of pleomorphic adenoma occurring in the upper neck followed by a literature
review in order to identify the major characteristics and differential
diagnosis of such a rare disease.
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