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urol. colomb. (Bogotá. En línea) ; 33(3): 150-155, 2024. ilus, graf
Article in Spanish | LILACS, COLNAL | ID: biblio-1573130

ABSTRACT

La enfermedad de Rosai-Dorfman se define como una histiocitosis de curso generalmente benigno, caracterizada por la acumulación ganglionar de histiocitos que presentan emperipolesis y positividad inmunohistoquímica para S-100 y CD68, y negatividad para CD1a y langerina. Su etiología exacta se desconoce, asociándose a factores autoinmunes, infecciosos y genéticos. El compromiso renal es infrecuente, identificándose en menos del 5% de los pacientes. Se presenta el caso de un hombre de 54 años, con descubrimiento incidental de lesión tumoral que comprometía el polo inferior de riñón izquierdo, quien fue sometido a nefrectomía radical y cuyos hallazgos histopatológicos confirmaron enfermedad de Rosai-Dorfman.


Rosai-Dorfman's disease is defined as a histiocytosis with a generally benign course, characterized by the accumulation of lymph nodes of histiocytes that present emperipolesis, and immunohistochemical positivity for S-100, and CD68, and negativity for CD1a and langerin. Its exact etiology is unknown, being associated with autoimmune, infectious, and genetic factors. Renal involvement is rare, being identified in less than 5% of patients. We present the case of a 54-year-old man, with incidental discovery of a tumor lesion that compromised the lower pole of the left kidney, who underwent radical nephrectomy and whose histopathological findings confirmed Rosai-Dorfman's disease


Subject(s)
Humans , Immunohistochemistry , Emperipolesis , Histiocytes , Kidney , Nephrectomy , Laparoscopy
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