RESUMO
La hipercalcemia asociada a procesos tumorales es un hallazgo poco frecuente en la edad pediátrica. El manejo terapéutico va encaminado a favorecer la calciuresis con diversos métodos farmacológicos e, incluso, técnicas de depuración extrarrenal. El objetivo de la exposición de este caso clínico es presentar a un paciente con hipercalcemia grave refractaria, que solo respondió a un tratamiento etiológico precoz con el empleo de quimioterapia, y se evitaron así las posibles complicaciones secundarias a dicha alteración electrolítica.
Hypercalcemia as a paraneoplastic syndrome is rare in children. Therapeutic management is aimed at promoting calciuresis with various pharmacological methods, even with extrarenal purification techniques. The aim of presenting this case is to highlight the importance of early etiologic treatment through chemotherapy as an urgent treatment in a refractory and severe hypercalcemia case, in order to avoid possible secondary complications due to this electrolyte disturbance.
Assuntos
Humanos , Masculino , Criança , Síndromes Paraneoplásicas/etiologia , Linfoma Difuso de Grandes Células B/complicações , Emergências , Hipercalcemia/etiologiaRESUMO
Hypercalcemia as a paraneoplastic syndrome is rare in children. Therapeutic management is aimed at promoting calciuresis with various pharmacological methods, even with extrarenal purification techniques. The aim of presenting this case is to highlight the importance of early etiologic treatment through chemotherapy as an urgent treatment in a refractory and severe hypercalcemia case, in order to avoid possible secondary complications due to this electrolyte disturbance.
Assuntos
Hipercalcemia/etiologia , Linfoma Difuso de Grandes Células B/complicações , Síndromes Paraneoplásicas/etiologia , Criança , Emergências , Humanos , MasculinoRESUMO
Congenital amegakaryocytic thrombocytopenia (CAMT) is a rare disorder characterized by thrombocytopenia and absence or decline in the number of megakaryocytic precursors in the bone marrow. It is caused by mutations in the thrombopoietin receptor gene, c-mpl, involved in the proliferation and differentiation of megakaryocytes and platelets. The association between CAMT and central nervous system (CNS) anomalies has been reported in the literature, albeit not very frequently. Here we present a unique case where CAMT appeared associated to cerebellum agenesis, hypoplasia of the corpus callosum and brainstem, facial malformations, and developmental delay.
Assuntos
Sistema Nervoso Central/anormalidades , Deficiências do Desenvolvimento/patologia , Face/anormalidades , Mutação/genética , Receptores de Trombopoetina/genética , Sistema Nervoso Central/patologia , Síndrome Congênita de Insuficiência da Medula Óssea , Deficiências do Desenvolvimento/genética , Face/patologia , Evolução Fatal , Feminino , Humanos , Recém-Nascido , Trombocitopenia/diagnóstico , Trombocitopenia/genética , Trombocitopenia/patologiaRESUMO
Anaphylactic/anaphylactoid reaction to methotrexate (MTX) is uncommon. It may occur with the first dose (non-allergic reactions) or after a previous exposure to the drug (allergic or specific reactions). Desensitization has been shown effective in children with allergic-type reactions permitting the continuation of high-dose methotrexate (HDMTX) therapy. We report the case of a child with localized osteosarcoma who developed an anaphylactoid reaction after a first HDMTX course. A desensitization protocol was successfully applied allowing the administration of four additional courses. In our experience, desensitization can be a safe and effective procedure in children with anaphylactoid reactions to HDMTX.