Surgical approach and clinical outcome of a deforming brown tumor at the maxilla in a patient with secondary hyperparathyroidism due to chronic renal failure.

Brown tumors are relatively uncommon but they are serious complications of renal osteodystrophy. We describe a 31-year-old woman with end-stage renal disease who had undergone hemodialysis for nine years and developed severe secondary hyperparathyroidism and a maxilla brown tumor despite increasing doses of oral calcitriol and calcium carbonate. The fast increase of the right maxillary bone tumor led to indication of parathyroidectomy (PTx). Despite normalization of serum PTH there was a slow regression of the mass and the patient still complained about her appearance after two-years of follow-up. Excision of the maxillary mass followed by recontouring of the maxilla was then performed, with adequate masticator rehabilitation.

Surgical approach and clinical outcome of a deforming brown tumor at the maxilla in a patient with secondary hyperparathyroidism due to chronic renal failure / Abordagem cirúrgica de um tumor marrom deformante em maxila após paratireoidectomia em paciente com hiperparatireoidismo secundário à insuficiência renal crônica

Brown tumors are relatively uncommon but they are serious complications of renal osteodystrophy. We describe a 31-year-old woman with end-stage renal disease who had undergone hemodialysis for nine years and developed severe secondary hyperparathyroidism and a maxilla brown tumor despite increasing doses of oral calcitriol and calcium carbonate. The fast increase of the right maxillary bone tumor led to indication of parathyroidectomy (PTx). Despite normalization of serum PTH there was a slow regression of the mass and the patient still complained about her appearance after two-years of follow-up. Excision of the maxillary mass followed by recontouring of the maxilla was then performed, with adequate masticator rehabilitation.

Tumores marrons são relativamente incomuns mas constituem sérias complicações da osteodistrofia renal. Descrevemos o caso de uma paciente, 31 anos, com doença renal em estágio terminal, em hemodiálise há nove anos, que desenvolveu severo hiperparatireoidismo secundário com tumor marrom em maxila apesar de doses crescentes de calcitriol oral e carbonato de cálcio. O rápido aumento do tumor marrom em maxila levou à indicação de paratireoidectomia (PTx). Apesar da normalização dos níveis de PTH sérico, a regressão da massa tumoral foi lenta e a paciente questionava sobre sua aparência após dois anos de seguimento. A excisão da massa maxilar foi seguida da reconstrução com adequada função mastigatória.

Comparison of mandibular rami width in patients with prognathism and retrognathia.

PURPOSE: The purpose of this study was to assess the ramus thickness in skeletal Class III and Class II patients. METHODS: Forty patients were evaluated using computed tomography scanning. RESULTS: Compared with the Class II patients, the mandibular ramus of Class III patients was thinner. The ramus thickness in retrognathic patients was 8.84 mm and the ramus thickness in prognathic patients was 7.80 mm. CONCLUSION: The ramus is thinner in patients with prognathism than in those with retrognathia.

Incidência e tratamento das lesöes traumáticas à mandíbula, maciço facial e às estruturas dentárias na cidade do Rio de Janeiro: 1976 a 1982 / Incidence and treatment traumatic injuries of the mandible, face and dental structures in Rio de Janeiro city: 1976 to 1982

Através de dados compilados das estatísticas mensais do Serviço de Odontologia do Hospital Municipal Souza Aguiar, faz-se o levantamento estatístico da traumatologia Buco-Maxilo-Facial na Cidade do Rio de Janeiro, abordando-se aspectos quanto à incidência e tratamento das lesöes traumáticas aos tecidos moles da face, ao tecido ósseo e às estruturas dentárias no período de janeiro de 1976 a dezembro de 1982 - 7 anos