[Pleomorphic adenoma of the upper lip].

A 48-year-old woman presented with a submucosal, slow-growing tumor of over 1.5 cm in the left upper lip. The enucleation was performed in local anesthesia and after a curved incision cranial to the tumor. The histopathology showed an encapsulated tumor with three diagnostic components: 1) epithelial (ductal) component forming the inner layer of cysts and tubules, 2) myoepithelial cells as their outer layer and 3) myxoid mesenchymal stroma. The healing was uneventful and only a thin scar on the mucosa was visible in the follow up. Pleomorphic adenoma of the minor salivary gland are less common than those of the major salivary gland, with the upper lip being the second most localisation after the palate. Enucleation is the treatment of choice, with care taken to ensure the pseudocapsule remains intact.

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Publication Details

Journal
Open Access CRIS of the University of Bern
Published
2025-03-28
DOI
https://doi.org/10.48620/87542
Primary Topic
Species Distribution and Climate Change
Type
article
Field-Weighted Citation Impact
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article

[Pleomorphic adenoma of the upper lip].

Open Access CRIS of the University of Bern
Species Distribution and Climate Change
article

[Pleomorphic adenoma of the upper lip].

article en

Abstract

A 48-year-old woman presented with a submucosal, slow-growing tumor of over 1.5 cm in the left upper lip. The enucleation was performed in local anesthesia and after a curved incision cranial to the tumor. The histopathology showed an encapsulated tumor with three diagnostic components: 1) epithelial (ductal) component forming the inner layer of cysts and tubules, 2) myoepithelial cells as their outer layer and 3) myxoid mesenchymal stroma. The healing was uneventful and only a thin scar on the mucosa was visible in the follow up. Pleomorphic adenoma of the minor salivary gland are less common than those of the major salivary gland, with the upper lip being the second most localisation after the palate. Enucleation is the treatment of choice, with care taken to ensure the pseudocapsule remains intact.

Open Access CRIS of the University of Bern
Stomatology Hospital (CN), Tissue Genetics (United States) (US)
Openalex Percentile: Top 47%
Species Distribution and Climate Change
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[Pleomorphic adenoma of the upper lip]. · Open Access CRIS of the University of Bern (2025) | TGRS Research Map | TGRS