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Mucocele in the Base of the Tongue Mimicking a Thyroglossal Duct Cyst: A Very Rare Location.

Hur JH, Byun JS, Kim JK, Lee WJ, Lee TJ, Yang HS - Iran J Radiol (2016)

Bottom Line: When they occur in the tongue, the ventral surface is the usual location.We present a case of a mucocele on the base of the tongue, which was incidentally found on a cervical spinal magnetic resonance image.We include a review of the literature on image findings, pathologic type, differential diagnosis, clinical symptoms, and treatment of oral mucoceles.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Chung-Ang University College of Medicine, Chung-Ang University , Seoul, Korea.

ABSTRACT
Mucoceles are one of the most common benign soft tissue masses of the oral cavity. When they occur in the tongue, the ventral surface is the usual location. Mucoceles at the base of the tongue are extremely rare and must be differentiated from intralingual thyroglossal duct cysts. We present a case of a mucocele on the base of the tongue, which was incidentally found on a cervical spinal magnetic resonance image. We include a review of the literature on image findings, pathologic type, differential diagnosis, clinical symptoms, and treatment of oral mucoceles.

No MeSH data available.


Related in: MedlinePlus

A 32-year-old man with a tongue-base mucocele. A, Laryngoscopy showed a smooth-margined, movable cyst at the midline of the tongue base; B and C, Enhanced CT scan depicted a well-defined cystic mass, mildly protruding between the genioglossus muscles on both sides without connection with the hyoid bone; D, and E, Lesion showed a slightly low signal intensity on the T1-weighted image and high signal intensity on the T2-weighted image without the fatty component on the fat suppressed image (not shown); F, Histopathologic examination revealed a large cystic space in the vicinity of minor salivary gland acini and ducts (hematoxylin and eosin stain, × 40). Extravasation of mucus from a salivary duct was noted (indicated by an arrow); G, The cystic space containing a mucus pool had no epithelial lining surrounded by fibrotic connective tissue (hematoxylin and eosin stain, × 100).
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fig26109: A 32-year-old man with a tongue-base mucocele. A, Laryngoscopy showed a smooth-margined, movable cyst at the midline of the tongue base; B and C, Enhanced CT scan depicted a well-defined cystic mass, mildly protruding between the genioglossus muscles on both sides without connection with the hyoid bone; D, and E, Lesion showed a slightly low signal intensity on the T1-weighted image and high signal intensity on the T2-weighted image without the fatty component on the fat suppressed image (not shown); F, Histopathologic examination revealed a large cystic space in the vicinity of minor salivary gland acini and ducts (hematoxylin and eosin stain, × 40). Extravasation of mucus from a salivary duct was noted (indicated by an arrow); G, The cystic space containing a mucus pool had no epithelial lining surrounded by fibrotic connective tissue (hematoxylin and eosin stain, × 100).

Mentions: A 32-year-old man presented with a mass on the base of the tongue that was found on C-spine MRI incidentally. He smoked about 2.5 packs per day, but he had no clinical symptoms of dysphasia or hoarseness. Laryngoscopic examination revealed a soft movable cyst protruding from the midline of the tongue base without tenderness (Figure 1A). On the enhanced computed tomography (CT) scan of the neck, a thin-walled cystic mass (10 to 20 Hounsfield units [HUs]) was noted without an enhancing solid component, measuring 2.8 × 2.5 × 2.8 cm (Figure 1B and C). There was no connection between the cyst, the hyoid bone, and the thyroid gland. The cervical spine magnetic resonance imaging (MRI) scan, obtained at another hospital, showed high signal intensity on the T2-weighted image and slightly low signal intensity on the T1-weighted image when compared with the intrinsic tongue muscles (Figure 1D and E). The MRI revealed no solid component or fat in the lesion. We diagnosed the lesion as a thyroglossal duct cyst and performed mass excision under general anesthesia. The cyst has no epithelial lining or malignant cells, which was consistent with the appearance of mucoceles on microscopic examination (Figure 1F and G). The lesion healed completely without complications or recurrence on follow-up.


Mucocele in the Base of the Tongue Mimicking a Thyroglossal Duct Cyst: A Very Rare Location.

Hur JH, Byun JS, Kim JK, Lee WJ, Lee TJ, Yang HS - Iran J Radiol (2016)

A 32-year-old man with a tongue-base mucocele. A, Laryngoscopy showed a smooth-margined, movable cyst at the midline of the tongue base; B and C, Enhanced CT scan depicted a well-defined cystic mass, mildly protruding between the genioglossus muscles on both sides without connection with the hyoid bone; D, and E, Lesion showed a slightly low signal intensity on the T1-weighted image and high signal intensity on the T2-weighted image without the fatty component on the fat suppressed image (not shown); F, Histopathologic examination revealed a large cystic space in the vicinity of minor salivary gland acini and ducts (hematoxylin and eosin stain, × 40). Extravasation of mucus from a salivary duct was noted (indicated by an arrow); G, The cystic space containing a mucus pool had no epithelial lining surrounded by fibrotic connective tissue (hematoxylin and eosin stain, × 100).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4835683&req=5

fig26109: A 32-year-old man with a tongue-base mucocele. A, Laryngoscopy showed a smooth-margined, movable cyst at the midline of the tongue base; B and C, Enhanced CT scan depicted a well-defined cystic mass, mildly protruding between the genioglossus muscles on both sides without connection with the hyoid bone; D, and E, Lesion showed a slightly low signal intensity on the T1-weighted image and high signal intensity on the T2-weighted image without the fatty component on the fat suppressed image (not shown); F, Histopathologic examination revealed a large cystic space in the vicinity of minor salivary gland acini and ducts (hematoxylin and eosin stain, × 40). Extravasation of mucus from a salivary duct was noted (indicated by an arrow); G, The cystic space containing a mucus pool had no epithelial lining surrounded by fibrotic connective tissue (hematoxylin and eosin stain, × 100).
Mentions: A 32-year-old man presented with a mass on the base of the tongue that was found on C-spine MRI incidentally. He smoked about 2.5 packs per day, but he had no clinical symptoms of dysphasia or hoarseness. Laryngoscopic examination revealed a soft movable cyst protruding from the midline of the tongue base without tenderness (Figure 1A). On the enhanced computed tomography (CT) scan of the neck, a thin-walled cystic mass (10 to 20 Hounsfield units [HUs]) was noted without an enhancing solid component, measuring 2.8 × 2.5 × 2.8 cm (Figure 1B and C). There was no connection between the cyst, the hyoid bone, and the thyroid gland. The cervical spine magnetic resonance imaging (MRI) scan, obtained at another hospital, showed high signal intensity on the T2-weighted image and slightly low signal intensity on the T1-weighted image when compared with the intrinsic tongue muscles (Figure 1D and E). The MRI revealed no solid component or fat in the lesion. We diagnosed the lesion as a thyroglossal duct cyst and performed mass excision under general anesthesia. The cyst has no epithelial lining or malignant cells, which was consistent with the appearance of mucoceles on microscopic examination (Figure 1F and G). The lesion healed completely without complications or recurrence on follow-up.

Bottom Line: When they occur in the tongue, the ventral surface is the usual location.We present a case of a mucocele on the base of the tongue, which was incidentally found on a cervical spinal magnetic resonance image.We include a review of the literature on image findings, pathologic type, differential diagnosis, clinical symptoms, and treatment of oral mucoceles.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Chung-Ang University College of Medicine, Chung-Ang University , Seoul, Korea.

ABSTRACT
Mucoceles are one of the most common benign soft tissue masses of the oral cavity. When they occur in the tongue, the ventral surface is the usual location. Mucoceles at the base of the tongue are extremely rare and must be differentiated from intralingual thyroglossal duct cysts. We present a case of a mucocele on the base of the tongue, which was incidentally found on a cervical spinal magnetic resonance image. We include a review of the literature on image findings, pathologic type, differential diagnosis, clinical symptoms, and treatment of oral mucoceles.

No MeSH data available.


Related in: MedlinePlus