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5 days ago · PATHOGENESIS. Key factors are follicular keratinization, androgens, and Propionibacterium acnes (see Fig. 1-4 ). Follicular plugging (comedone) prevents drainage of sebum; androgens (quantitatively and qualitatively normal in serum) stimulate sebaceous glands to produce more sebum.
3 days ago · Acinic cell carcinoma is a malignant epithelial neoplasm of the salivary glands characterized by serous acinar cell differentiation (cytoplasmic zymogen granules) in at least some of the neoplastic cells.
3 days ago · Mucoepidermoid carcinoma is a tumor that usually occurs in the salivary glands. It can mimic most other tumors of the glands, and therefore is often considered in the differential.
4 days ago · Nasopharyngeal adenoid cystic carcinoma (NACC) is a relatively rare salivary gland tumor that is generally associated with poor outcomes. High-dose radiotherapy is a key treatment for patients with NACC. This study reported the long-term efficacy and safety of particle beam radiation therapy (PBRT) for NACC.
3 days ago · Salivary gland tumors are variable in location, origin, and malignant potential. Pathology. In general, the ratio of benign to malignant tumors is proportional to the gland size; i.e. the parotid gland tends to have benign neoplasms, the submandibular gland 50:50, and the sublingual glands and accessory glands mostly malignant. Due to the size ...
3 days ago · 19 June 2024. Article history. PDF. Split View. Cite. Permissions. Share. Abstract. Mucoepidermoid carcinoma, a salivary gland tumor, rarely occurs in bronchial mucous glands. Brain metastases are rarely seen which makes for a challenging diagnosis and treatment approach.
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3 days ago · Pleomorphic adenoma most commonly occurs in salivary glands (especially parotid gland) but can arise in any tissue that has glandular myoepithelial tissue. Other reported sites include lacrimal glands, external auditory canal, skin, breast, and vulva 1.
