Presentation
Frequent bleeding from a right upper gingival lesion.
Patient Data
Small soft tissue mass of the right posterior maxillary gingiva surrounding mainly the 2nd premolar tooth and extending to the interdental gingiva. It appears isointense to the muscles on T1, slightly high signal on T2 with no restricted diffusion and vivid homogeneous enhancement on postcontrast sequences.
No adjacent maxillary lesion is seen.
Peripheral mucosal thickening of the right maxillary and sphenoid sinuses.
Case Discussion
The clinical presentation and the MRI features are most consistent with a pyogenic granuloma.
A pyogenic granuloma, also known as lobular capillary hemangioma, is a common benign vascular lesion found arising from the skin and mucous membranes. Pyogenic granulomas most commonly arise secondary to a prior injury (chronic irritation and/or minor trauma), although spontaneous occurrence is also seen, as is growth within a capillary malformation. They account for 42% of all gingival lesions in children and teenagers.
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