Granulomatosis with polyangiitis (GPA) is a systemic vasculitis characterized by necrotizing granulomatous inflammation affecting small to medium vessels. "Strawberry gingivitis" is a distinctive oral manifestation of GPA, presenting as a hyperplastic, erythematous, and hemorrhagic gingival lesion resembling the surface of a strawberry. This appearance results from underlying granulomatous inflammation and vasculitis. Recognizing strawberry gingivitis is crucial as it can be an early clinical sign of GPA, prompting timely diagnosis and treatment to prevent systemic complications. Other listed conditions do not typically present with this oral finding.

Reference: Oral Pathology, Neville, 4th Edition.