[Congenital neutropenia and acute graft-versus-host disease in an infant. A case report].

Background: Congenital neutropenia is a primary immunodeficiency characterized by quantitative anomalies in neutrophil counts. It is classified as mild, moderate, or severe. Hematopoietic stem cell transplantation stands as a potential therapeutic intervention; nevertheless, graft-versus-host disease emerges as a main complication.

Case report: We report the case of a 2-year-old female patient, with a history of congenital neutropenia. She had scalp abscesses and preseptal cellulitis, which were satisfactorily treated. After a multidisciplinary approach, a protocol was initiated to receive an allogenic hematopoietic progenitor cell transplant; graft versus host disease was subsequently diagnosed, ultimately resulting in death of the patient.

Conclusion: Graft-versus-host disease remains a significant complication in patients who undergo allogeneic hematopoietic stem cell transplants. Its recognition, management, and treatment are clinically relevant aspects given the substantial degree of associated morbidity and mortality.