20 documents found, page 1 of 2
X-linked Hypophosphatemic Rickets: a New Mutation
Maio, P; Mano, L; Rocha, S; Baeta Baptista, R; Francisco, T; Sousa, H; Parente Freixo, J; Abranches, MPhosphopenic rickets may be caused by mutations in the PHEX gene (phosphate regulating endopeptidase homolog X-linked). Presently, more than 500 mutations in the PHEX gene have been found to cause hypophosphatemic rickets. The authors report a clinical case of a 4-year-old girl with unremarkable family history, who presented with failure to thrive and bowing of the legs. Laboratory tests showed hypophosphatemia...
Primary Hyperoxaluria type 1 – Two Case Reports
Ganhão, I; Borges, C; Amorim, M; Braga da Cruz, M; Nobre, S; Francisco, T; Cardoso, D; Abranches, MPrimary hyperoxaluria type 1 is a rare autosomal recessive inherited disease, caused by mutations in AGXT gene, with an estimated incidence of 1:100.000 live births per year in Europe. Over 50% present with end stage renal disease at diagnosis. Case reports: The first case is a 14‑year‑old boy, second child to consanguineous parents, with history of recurrent lithiasis and ureteral dilatation starting 5 years b...
Everolimus no Tratamento da Esclerose Tuberosa
Rocha, S; Mano, L; Maio, P; Francisco, T; Santos, R; Pacheco, L; Serrão, AP; Abranches, MIntrodução: A esclerose tuberosa (ET) é um distúrbio genético que atinge vários processos celulares, resultando numa variedade de lesões hamartomatosas que podem afetar qualquer órgão. O envolvimento renal constitui a segunda causa de morte prematura, sendo os angiomiolipomas (AML) a alteração mais frequente (70-80% dos doentes) e cuja sintomatologia está diretamente relacionada com as dimensões dos AML. Descri...
Congenital Solitary Functioning Kidney and Other Associated Congenital Malforma...
Carvalho, T; Francisco, T; Santos, R; Abranches, MIntroduction: Congenital solitary functioning kidney (CSFK) is associated to other congenital anomalies. Most of them involve urogenital tract, cardiac, skeletal and central nervous system. There are also some syndromes associated to renal malformations. Objective: To determine the prevalence of associated malformations in children with CSFK. Material and methods: We reviewed 134 electronic processes of childre...
Coexistence of Pheochromocytoma and Renal Artery Stenosis in a Pediatric Patien...
Serras, I; Baeta Baptista, R; Francisco, T; Casimiro, A; Lito, D; Alves, R; Abranches, MPheochromocytoma and renal artery stenosis are surgically treatable causes of hypertension. Although rare, the coexistence of pheochromocytoma and renal artery stenosis has been described in case reports. Common pathophysiological mechanisms other than extrinsic compression may be involved in this association, such as catecholamine-induced vasospasm. The early recognition of the association of pheochromocytoma ...
Hypophosphatemic Rickets: A New Mutation
Maio, P; Rocha, S; Mano, L; Francisco, T; Sousa, H; Freixo, J; Abranches, MIntroduction: Phosphopenic rickets is characterized by hypophosphatemia with hyperphosphaturia, normal calcemia and normal or mildly elevated PTH. This pathology may be caused by mutations in PHEX gene (phosphate regulating endopeptidase homolog X-linked). We present a clinical report of a girl with phosphopenic rickets, as consequence of a new mutation of PHEX gene. Clinical Case: We present a 4-year-old femal...
Nephrolithiasis in a Portuguese Pediatric Population
Andrade, J; Bota, S; Francisco, T; Santos, R; Neto, G; Abranches, MIntroduction and Aims: Nephrolithiasis incidence in children has increased considerably. It is associated with substantial morbidity, recurrence and increased adulthood cardiovascular risk and chronic kidney disease. A thorough investigation is essential, as rare forms of urolithiasis have increased risk of renal failure. We aim to determine the epidemiology and outcomes of a pediatric population with nephrolit...
Fanconi Syndrome after Ifosfamide Exposure
Madeira Gomes, S; Francisco, T; Serrão, AP; Abranches, Mntroduction: Ifosfamide is an antineoplastic drug frequently used in the treatment of pediatric malignancies. However it is responsible for nephrotoxicity in up to 30% of patients, which can be manifested from asymptomatic tubulopathy to overt renal failure. We report a case of a patient who developed Fancony syndrome after exposure to ifosfamide. Clinical Case: A two-year-old caucasian boy was diagnosed with s...
Ciliopatias – Experiência de uma Unidade de Nefrologia Pediátrica de um Hospita...
Maio, P; Rocha, S; Mano, L; Francisco, T; Santos, R; Serrão, AP; Abranches, MIntrodução: As ciliopatias constituem um grupo de doenças associadas a mutações genéticas que condicionam alterações na estrutura e função dos cílios. A disfunção ciliar pode manifestar-se com doença renal, degeneração retiniana e anomalias cerebrais. Outras manifestações menos frequentes são a doença fibroquística congénita do fígado, diabetes, obesidade e displasia óssea. Objetivo: Caracterizar os casos de ci...
Influenza B-Associated Atypical Hemolytic Uremic Syndrome
Mano, L; Rocha, S; Maio, P; Francisco, T; Pereira, G; Gomes, S; Santos, R; Serrão, AP; Abranches, MIntroduction: Influenza A infections have been described to cause secondary hemolytic uremic syndrome and to trigger atypical hemolytic uremic syndrome (aHUS) in individuals with an underlying genetic complement dysregulation. To date, Influenza B has only been reported to trigger aHUS in 2 patients. In 61% of aHUS cases, mutations are found in H, B and I factors, membrane cofactor protein (MCP), C3 and thrombo...