Presentation
Mouth floor swelling with pain
Patient Data
Right-sided mouth floor / sublingual space well defined ovoid lesion centered upon the sublingual gland, indenting the right genioglossus muscle and abutting the inner cortex of the mandible. It measures 2.5x1.5x2.5 cm, it presents slight hypodensity relative to the adjacent muscle
No associated bony destruction or aggressive changes
Right maxillary sinus small retention cyst
Right-sided mouth floor / sublingual space well defined ovoid lesion centered upon the sublingual gland, indenting the right genioglossus muscle and abutting the inner cortex of the mandible. It measures 2.5x1.5x2.5 cm, it elicits intermediate signal intensity in T1 and high signal in T2 with moderate homogenous enhancement in the post-contrast study
No associated bony destruction or aggressive changes
Right maxillary sinus small retention cyst
Bilateral cheek subcutaneous fillers
Case Discussion
Here is a case of a sublingual solid mass lesion. The CT picture is similar to cystic lesions (ranula, retention cyst, epidermoid cyst, others) that are much more common than solid lesion in this location, however, MRI was superior in demonstration of the lesion signal and enhancement
Differential diagnosis includes:
- Pleomorphic adenomas of the salivary glands are benign tumors present as well-circumscribed masses, most commonly located within the parotid gland, hypoechogenic on ultrasound, and bright on T2WI with homogeneous enhancement on MRI. The sublingual gland is the least common salivary gland to be involved 0.5%
- Hemangioma: considering intense bright signal in T2
Unfortunately, no available histopathological proof
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