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Revista Colombiana de Reumatología (English Edition) Are ANCA antibodies necessary in the definition of interstitial pneumonia with a...
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Vol. 32. Issue 4.
Pages 416-420 (October - December 2025)
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403
Vol. 32. Issue 4.
Pages 416-420 (October - December 2025)
Case report
Are ANCA antibodies necessary in the definition of interstitial pneumonia with autoimmune features? Illustrative case presentation
¿Los anticuerpos ANCA son necesarios en la definición de la neumonía intersticial con características autoinmunes? Presentación de un caso ilustrativo
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Andrea Cabra Sierra
Corresponding author
ancabras@unal.edu.co

Corresponding author.
, Jorge Lechuga-Ortiz, Yimy Medina Velásquez, Luis Javier Cajas Santana
Department of Internal Medicine, Faculty of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia
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Table 1. Profile of autoimmunity studies of the patient.
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Abstract

We present the case of an adult female patient with a diagnosis of IPAF (Interstitial pneumonia with autoimmune features) based on serological and morphological domains according to the diagnostic consensus, in whom the additional positivity of an autoantibody not considered until now within the serological domain is highlighted, namely antineutrophil cytoplasmic antibodies (ANCA)-C. The patient failed multiple treatments. In the medical literature, there is growing interest in defining the usefulness of including ANCA as a significant autoantibody in the diagnosis of IPAF. This is the first case reported in Colombia.

Keywords:
Interstitial lung disease
Antibodies
Antineutrophil cytoplasmic
IPAF
Resumen

Se presenta el caso de una paciente adulta con diagnóstico de IPAF (interstitial pneumonia with autoinmune features) basado en dominios serológico y morfológico, según el consenso diagnóstico, en quien se destaca la positividad adicional de un autoanticuerpo no considerado hasta el momento dentro del dominio serológico como lo es el anticuerpo anticitoplasma de neutrófilos (ANCA)-C. La paciente tuvo falla en múltiples tratamientos. En la literatura médica hay un creciente interés por definir la utilidad de incluir los ANCA como autoanticuerpos útiles en el diagnóstico de IPAF. Este es el primer caso reportado en Colombia.

Palabras clave:
Enfermedad pulmonar intersticial
Anticuerpos
Anticitoplasma de neutrófilos
IPAF

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