PMC9484470_01
A - gross view of the buccal mucosa showing the nodular swelling with mucopurulent discharge; B - sagittal computed tomography showing a tiny hyperdense structure in the lesional area (white arrow).
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Intraoral examination revealed a painful nodular swelling of the buccal mucosa with mucopurulent discharge (Figure 1A). The computed tomography finding (Figure 1B) was consistent with a small calcification in the buccal mucosa.
A - gross view of the surgical field enabling the visualization of the sialolith (arrowhead); B - excised specimens. The yellow arrow shows the solid mass with a smooth surface, while the white arrow shows the sialolith measuring 0.3 x 0.2 x 0.1 cm.
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During surgery, a spherical, whitish calcified mass compatible with sialoliths was depicted (Figure 2A). Grossly, the hard tissue fragment measured 0.3 x 0.2 x 0.1 cm immersed in soft tissue (Figure 2B).
A - photomicrographs of the surgical specimen exhibiting fibrous stroma, acinar atrophy, and dilated ducts surrounded by chronic inflammation (H&E stain, x10); B - histopathological features showing a homogeneous calcified structure in a concentric pattern (H&E stain, x10).
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The microscopic examination revealed a fibrovascular stroma containing foci of neutrophil infiltration, acinar atrophy, and numerous dilated salivary gland ducts surrounded by an abundant chronic inflammatory infiltrate (Figure 3A). The hard tissue showed basophilic calcified material with a fingerprint-like appearance in a concentric pattern (Figure 3B).