Ana Alarcón-Arratia, Maximiliano Muñoz-Repetto, Katty Schnettler, Carolina Ulloa-Marin
RESUMEN: Se presenta el caso de un paciente sexo femenino 31 años, insuficienciente renal crónica en hemodiálisis, hipertensa secundaria, consulta por aumento de volumen oral en relación a encía marginal vestibular izquierda, 6 meses de evolución. Al examen se observa aumento de volumen de 15 mm en relación a piezas. 3.6 y 3.7. Radiografía muestra compromiso periodontal pieza 3.7. Se realiza biopsia excisional y exodoncia pieza 3.7. Histopatología informa granuloma periférico de células gigantes. Se solicitan exámenes de laboratorio para estudio de hiperparatiroidismo (PTH elevada, calcemia fosfatemia normales). Evoluciona favorablemente. Sin signos de recidiva a los 3 meses. El diagnóstico histopatológico de lesión de células gigantes debe ser complementado con la clínica, exámenes de laboratorio e imagenología, el objetivo final es definir si tal diagnóstico corresponde a un tumor pardo, a un granuloma central de células gigantes o a un granuloma periférico de células gigantes. En la literatura los reportes de asociación entre granuloma periférico de células gigantes e hiperparatiroidismo son escasos. Este caso corresponde a granuloma periférico células gigantes, asociado a hipersecreción de paratohormona.
ABSTRACT: A 31-year-old female patient with chronic renal insufficiency in hemodialysis and secondary hypertension consulted due to an enlarging intraoral lesion in relation to the left marginal vestibular gingival, with 6 months of evolution. A 15mm mass in relation to mandibular left molars was noted. Radiograph showed periodontal involvement of mandibular left second molar. Excisional biopsy and tooth 3.7 extraction were performed. Histopathology reported a peripheral giant cell granuloma. Laboratory tests were requested for suspected hyperparathyroidism (aiding in the diagnosis) (high PTH, normal phosphatemia and calcemia). Evolution was favorable, without signs of reappearance after 3 months. The histopathological diagnosis of giant cell lesions should be complemented with clinical, laboratory and imaging tests. The final objective is to make the differential diagnosis between brown tumor, central giant cell granuloma and peripheral giant cell granuloma because the treatment varies considerably. There are few reports in the literature about the association between peripheral giant cell granuloma and hyperparathyroidism. This case corresponds to peripheral giant cell granuloma, possibly associated with parathormone hypersecretion.
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