Related Experiment Video
Updated: Jun 11, 2026

Ultrasonographic Evaluation of Salivary Glands for Sjogren's Syndrome: Diagnostic and Monitoring Insights
Published on: October 13, 2023
[Epidermal cyst of the parotid gland]
D Manz1, A Bankfalvi, G Lehnerdt
1Universitäts-Hals-Nasen-Ohren-Klinik Essen, Universität Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany. Daniel.Manz@uk-essen.de
Abstract:
Epidermoid cysts of the parotid gland are rare. We report the case of a 60-year-old man with a cystic tumor of the right parotid gland. The patient had undergone ipsilateral middle ear surgery twice four years previously. The tumor was identified by computed tomography and ultrasonography and removed by total parotidectomy under suspicion of a parotid tumor. Histopathology revealed the diagnosis of an epidermal cyst. The differential diagnosis of a parotid tumor should include (iatrogenic) epidermoid cyst, in particular if there is a history of prior ear surgery via an endaural approach.
Related Concept Videos
Accessory Structures of the Skin: Sebaceous Glands
These glands that produce the oils on the skin and hair are holocrine glands. The mature...
The Parathyroid Glands
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by producing...
Exocrine Glands: Methods of Secretion
Merocrine Secretion
Merocrine secretion is the most common type of exocrine secretion. The secretions are enclosed in vesicles and moved to the cell's apical surface, where the contents are released by exocytosis. For example, mucous, a watery secretion rich in the glycoprotein mucin, is a merocrine secretion. The eccrine glands...
Exocrine Glands: Types of Secretions
Serous glands produce watery secretions rich in digestive enzymes and proteins. The constituent cells of the serous gland have centrally located nuclei and eosinophilic secretory granules in the cytoplasm. The parotid gland is an example of a serous gland. It secretes saliva, which contains enzymes, such as lipases and...
Acne Infection
Salivary Glands and Saliva