Hemophagocytic lymphohistiocytosis induced by Toxoplasma gondii infection diagnosed by a bone marrow biopsy and DNA next-generation sequencing in an allogeneic hematopoietic stem cell transplant recipient.
Transpl Infect Dis
; 23(4): e13610, 2021 Aug.
Article
en En
| MEDLINE
| ID: mdl-33783930
ABSTRACT
In the United States, toxoplasmosis following allogeneic hematopoietic stem transplant (allo-HCT) is very rare with a rate only between 0.5% and 2%. The reported rates of hemophagocytic lymphohistiocytosis (HLH) following allo-HCT range between 0.3% and 17%. Secondary HLH due to toxoplasmosis infection is extremely rare. Herein, we report a case of secondary HLH due to toxoplasmosis following allo-HCT. The diagnosis was reached by a bone marrow biopsy and confirmed by DNA next generation sequencing and immunohistochemical (IHC) staining. The IHC staining included CD1a, a stain previously known to react with cells infected by Leishmania, here we show CD1a staining of macrophages infected with Toxoplasma gondii. Our report highlights the utility of bone marrow biopsy in diagnosing parasitic infection underlying HLH in post-transplant settings. The pre-transplant evaluation of patients from low endemic countries, is a great opportunity to obtain a travel history to determine the risks and the preventative measures against opportunistic infections including toxoplasmosis.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Toxoplasma
/
Toxoplasmosis
/
Trasplante de Células Madre Hematopoyéticas
/
Linfohistiocitosis Hemofagocítica
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
En
Revista:
Transpl Infect Dis
Asunto de la revista:
TRANSPLANTE
Año:
2021
Tipo del documento:
Article
País de afiliación:
Estados Unidos