RESUMEN
Cutaneous involvement in Waldenström's macroglobulinaemia (WM) has been poorly characterized. To describe this involvement, a retrospective study of 19 patients with WM and cutaneous involvement of tumour B cells was performed. Twelve patients (group 1) had lymphoplasmacytic, non-transformed cutaneous proliferation, while in 7 cases (group 2) cutaneous involvement corresponded to histological transformation. In group 1, skin involvement was inaugural in 6 cases. The lesions were infiltrated plaques (83%), papules (25%) and tumours (42%). Four patients had a similar clinical picture (purplish, bilateral and symmetrical infiltration on the face). MYD88 L265P mutation was detected in the skin biopsy in all 6 cases tested. The 3-year specific survival rate was 88%. In group 2, cutaneous transformation occurred during the follow-up of the WM (71%). Lesions presented as ulcerated tumours (86%) of the trunk (57%) and lower limbs (57%). The 3-year specific survival rate was 22%. Skin involvement in WM has distinctive characteristics (e.g. clinical, histological, immunohistochemical, MYD88 L265P mutation).
Asunto(s)
Macroglobulinemia de Waldenström , Humanos , Mutación , Factor 88 de Diferenciación Mieloide/genética , Estudios Retrospectivos , Piel , Macroglobulinemia de Waldenström/diagnóstico , Macroglobulinemia de Waldenström/genéticaRESUMEN
We describe a DRESS syndrome induced by fenofibrate. This side effect, rarely described with fenofibrate, should be known by clinicians to stop it immediately and avoid serious complications.
Asunto(s)
Síndrome de Hipersensibilidad a Medicamentos/diagnóstico , Eosinofilia/diagnóstico , Fenofibrato/efectos adversos , Erupciones por Medicamentos/complicaciones , Erupciones por Medicamentos/diagnóstico , Síndrome de Hipersensibilidad a Medicamentos/complicaciones , Eosinofilia/inducido químicamente , Eosinofilia/complicaciones , Humanos , Hipercolesterolemia/tratamiento farmacológico , Masculino , Persona de Mediana EdadRESUMEN
Leukonychia is an ungueal discoloration or dyschromia. The hereditary form is rare. In the observations reported in the literature, leukonychia was total or sub-total, and was sometimes associated to other various symptoms. We report an original observation of hereditary leukonychia totalis in a father and two of his children, associated with acanthosis-nigricans-like lesions and hair dysplasia. These symptoms were also present in eight other members of the same family.
