Blandin Nuhn Case Study

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The Blandin - Nuhn glands are a group of small mixed mucous and serous salivary glands situated on both sides of the midline of the ventral aspect of the tongue arranged as a horseshoe-shaped masses surrounded by lingual musculature. These glands are not encapsulated, each gland measures about 1-8mm wide, 12- 25mm deep and consist of several small independent glands. These glands drain by means of 5-6 small ducts which open near the lingual frenum.[7] Mucoceles of the glands of Blandin – Nuhn is rare. The first case of mucocele of glands of Blandin Nuhn was reported in 1970 by Heimansohn embedded within the musculature of the anterior tongue ventral surface [8] which is covered only by a thin mucous membrane. Mucoceles involving the glands of blandin–nuhn are often histologically diagnosed as being extravasation type and likely to occur in young patients. The differential diagnosis in the present…show more content…
Histopathologically, in the case of retention mucoceles, which are less frequent and seen particularly in elderly patients, a cyst cavity can be found. This is generally well defined with an epithelial wall covered with a row of cuboidal or squamous cells produced from the excretory duct of the salivary glands. Compared to extravasation mucoceles commonly found in individuals less than 30 years old and account for over 80% of all mucoceles, retention mucoceles show no inflammatory reaction and are true cysts with an epithelial covering. Extravasation mucoceles are pseudocysts without defined walls. The extravasated mucous is surrounded by a layer of inflammatory cells and then by a reactive granulation tissue made up of fibroblasts caused by an immune reaction. In the present study microscopic appearance of lesion reveals connective tissue stroma consisting of areas of mucous pooling, salivary acini, salivary gland ducts, inflammatory cells and blood

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