RESUMO
INTRODUCTION: Pretibial myxedema is a rare manifestation of Graves' disease, and pseudotumoral forms may be confused with lower limb lymphedema. OBSERVATIONS: We reported 3 cases of pretibial myxedema in 2 women and 1 man, aged 72, 66, and 49 years, treated for Graves' disease 3, 25 and 32 years previously. Two patients were active smokers. Lymphedema diagnosis of the lower limbs was suspected in the presence of bilateral pseudotumoral lesions of the feet, toes and ankles and the presence of a Stemmer's sign (skin thickening at the base of the 2nd toe, pathognomonic of lymphedema). Lymphoscintigraphy in one case was normal, not confirming lymphedema. CONCLUSION: Pretibial pseudotumoral myxedema is a differential diagnosis of lower limb lymphedema. This diagnosis is confirmed by questioning the patient about preexisting Graves' disease, the underlying etiology, to decide the appropriate treatment and to encourage cessation of smoking, which is a risk factor for pretibial myxedema.
Assuntos
Doença de Graves , Dermatoses da Perna , Mixedema , Masculino , Humanos , Feminino , Mixedema/diagnóstico , Mixedema/etiologia , Mixedema/patologia , Diagnóstico Diferencial , Doença de Graves/complicações , Doença de Graves/diagnóstico , Extremidade Inferior/patologia , Dedos do Pé/patologia , Dermatoses da Perna/diagnóstico , Dermatoses da Perna/etiologia , Dermatoses da Perna/patologiaRESUMO
Scorpion envenomation is a public health problem in several countries in the tropics and subtropics, with high mortality in the severe forms involving multiple organ failure. The correlation between young age and clinical manifestations of severe scorpion envenomation is well established. We report the case of a 3-month-old infant admitted for severe scorpion envenomation who rapidly developed fatal multiple organ failure, and we discuss the different physiopathological aspects of severe scorpion envenomation.
Assuntos
Picadas de Escorpião , Evolução Fatal , Humanos , Lactente , Masculino , Picadas de Escorpião/diagnóstico , Picadas de Escorpião/terapiaRESUMO
The authors report a case of chickenpox (varicella) in an adult, complicated by acute respiratory distress syndrome and resulting in death.
