• Chanekrid Oupadissakoon
• Narissaporn Chaiprakit
• Weerachai Singhatanadgit

Localized juvenile spongiotic gingival hyperplasia (LJSGH) is a recently discovered oral
lesion in children and young adults, which can be misdiagnosed with gingivitis associated with
dental plaque and other well recognized reactive lesions. Clinically, JSGH presents as bright red
gingival overgrowth with papillary surface, most commonly at attached and marginal gingivae of
the upper anterior region. Differential diagnoses may include pyogenic granuloma, peripheral giant
cell granuloma, peripheral ossifying fibroma and hyperplastic gingival inflammation. Histologically
distinctive, JSGH is characterized by non-keratinizing stratified squamous epithelium with papillary
architecture, intense neutrophilic exocytosis and spongiosis. The objectives of the present case report
were to report a localized juvenile spongiotic gingival hyperplasia case, describe its clinical manifestations,
histological features and treatment protocol, and emphasize clinical awareness of the occurrence of
this uncommon oral mucosal lesion among dental general practitioners.

(CU Dent J. 2016;39:95-100)