A unique presentation of spongiotic hyperplasia at the mucogingival junction
Bibliographic record
Abstract
Spongiotic Gingival Hyperplasia (SGH), previously known as Localized Juvenile Spongiotic Gingival Hyperplasia (LJSGH), has been a subject of nomenclature debate due to its presentation in patients of all ages. SGH is characterized by erythematous, slightly raised plaques or nodules, often localized in the marginal gingiva. This case report presents a unique clinical presentation of Spongiotic Hyperplasia of the Mucogingival Junction (SHMJ), further elucidating SGH's clinical variability, with a particular focus on its differential diagnosis and management, followed by long-term clinical monitoring. A 67-year-old female presented with an asymptomatic, erythematous patch at the mucogingival junction between teeth #21 and #22. Clinical and radiographic examination revealed no signs of periodontal or pulpal infection/necrosis. An excisional biopsy of the lesion revealed marked spongiosis and exocytosis of a diffusely CK19-positive overlying mucosal epithelium. Histological findings were consistent with spongiotic hyperplasia. The lesion showed complete healing at a 9-month follow-up without recurrence. This case represents a peculiar instance of SHMJ, highlighting the need for heightened clinical awareness of SGH’s atypical presentations. Surgical excision remains the treatment of choice, as conservative periodontal treatments are ineffective. Histological and immunohistochemical analysis aid in definitive diagnosis; long-term follow-up is essential to exclude recurrence.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".