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Rev. med. Risaralda ; 24(1): 70-72, ene.-jun. 2018.
Article in Spanish | LILACS, COLNAL | ID: biblio-902098

ABSTRACT

La nefropatía C1q es una rara glomerulonefritis caracterizada por depósitos mesangiales difusos, dominantes o codominantes de la fracción C1q de complemento, en ausencia de un perfil clínico e inmunológico de lupus eritematoso sistémico (LES). Describimos el caso de una mujer de 27 años de edad que presentó síndrome nefrótico de causa no clara, en quien se descartó LES y síndrome antifosfolípido (SAF), pero que tenía una biopsia renal compatible con esta enfermedad. En la inmunofluorescencia se observaron depósitos mesangiales de C1q ++, IgG ++, IgM++ C3++, y ausencia de depósitos de IgA y C4. Tras el diagnóstico se instauró manejo inmunosupresor logrando estabilidad clínica. Se realiza descripción del caso y revisión de la literatura de esta rara causa de síndrome nefrótico.


Abstract: C1q nephropathy is a rare glomerulonephritis characterized by diffuse, dominant or codominant mesangial deposits of C1q complement, in the absence of a clinical and immunological profile of systemic lupus erythematosus (SLE). We describe a case of a 27-year-old female with nephrotic syndrome of unclear cause, in whom SLE and antiphospholipid syndrome (SAF) were ruled out but who had a kidney biopsy compatible with this disease. Immunofluorescence showed mesangial deposits of C1q ++, IgG ++, IgM ++ C3 ++, and absence of IgA and C4 deposits. After the diagnosis, immunosuppressive management was established, achieving clinical stability. A case description and literature review of this rare cause of nephrotic syndrome is performed.


Subject(s)
Humans , Female , Adult , Complement C1q , Glomerulonephritis , Immunosuppressive Agents , Kidney Diseases , Nephrotic Syndrome , Fluorescent Antibody Technique , Antiphospholipid Syndrome , Lupus Erythematosus, Systemic
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