A new presentation of isolated cutaneous Rosai-Dorfman disease: Eruptive xanthoma-like lesions.

Rosai-Dorfman disease or sinus histiocytosis with massive lymphadenopathy is a benign lympho-histiocytic proliferative disorder initially described with bilateral painless lymphadenopathy (90 %), fever, leukocytosis, elevated ESR, anemia, and polyclonal hypergammaglobulinemia (90 %). Extranodal forms occur in 43% of cases, the skin being the most common site. Around 10% of patients have skin lesions and in 3%, the disease is limited exclusively to the skin. Here, we report a male patient who presented with pure cutaneous lesions which mimic eruptive xanthoma clinically. However, the diagnosis was established histo pathologically. So, high level of clinical suspension is critical to avoid missing such cases.

Anetodermia secundaria a una lepra tuberculoide polar / Secondary anetodermia due to Polar Tuberculoid Leprosy

Una mujer de 45 años tratada por una lepra tuberculoide polar hace 7 años en Paraguay, presentó en cara anterior de brazo izquierdo una típica lesión de anetodermia de 7 x 5 cm con hipoestesia residual. La coloración para fibras elásticas mostró disminución o ausencia de las mismas. La asociación de anetodermia es muy frecuente en casos residuales de lepra lepromatosa polar o subpolar, siendo extremadamente infrecuente en los de lepra tuberculoide. No hemos hallado ésta concomitancia en la bibliografía consultada (AU)