Antiphospholipid syndrome is a relatively recent systemic autoimmune disorder defined by thrombotic events and/or obstetric complications in the presence of persistent elevated antiphospholipid antibodies. It is characterized by a wide spectrum of clinical presentations and virtually any organ system or tissue may be affected by the consequences of vascular occlusion. Diagnosis is sometimes difficult and althou...
Dermatofibroma is one of the most common entities seen in dermatology clinical practice. Several clinical subtypes have nevertheless been described, all of them of uncommon occurrence. The authors present two rare clinical variants of dermatofibromas: congenital multiple clustered dermatofibroma (the presented case is the 4th congenital case to be reported so far) and multiple eruptive dermatofibromas developin...
Behçet disease is a chronic relapsing systemic disease with possible life-threatening presentations. Management of this disease can be challenging and reports of the off-label use of anti-TNFα agents for the treatment of severe manifestations are increasing, with good results. The authors report a case of Behçet disease with a sudden and severe multi-systemic onset successfully treated with infliximab.
In this paper, we assess the design and performances of a strictly non-blocking all-optical cross-connect demonstrator node for WDM wavelength path networks. The all-optical cross-connect (AOXC) prototype was experimentally tested in a small 2 x 2 WDM network with a STM-16 bit stream per channel. The single and cascaded performance of the AOXC was also simulated and its results were validated with the experimen...
Abstract Lipomas are among the most common tumors seen in the soft body parts and usually are solitary lesions. The authors report a case of a male patient that presented for evaluation of multiple subcutaneous nodules that caused important functional and cosmetic impairment. The diagnosis of familial multiple lipomatosis was made. Physicians should be able to recognize and characterize this rare disease.
A Ashy dermatosis, ou erythema dyscromicum perstans, é uma dermatose rara de etiologia desconhecida. Os autores descrevem o caso de um homem de 46 anos saudável, com história de lesões cutâneas cinzentas assintomáticas no tronco com 1 ano de evolução. A constelação dos achados clínicos, histológicos e laboratoriais permitiu efectuar o diagnóstico de Ashy dermatosis. O doente iniciou tratamento com clofazimina o...
Introdução: Os tumores dos anexos cutâneos representam um grupo heterogéneo de neoplasias benignas e malignas com diferentes diferenciações morfológicas. Material e Métodos: Foi efectuado o estudo retrospectivo dos tumores dos anexos cutâneos diagnosticados na consulta externa do Serviço de Dermatologia do Centro Hospitalar do Porto, EPE-HSA entre 2000 a 2009. Resultados: Foram diagnosticados 404 tumores do...
Cutaneous infection develops because of environmental and local factors, host immunity, and organism adherence and virulence. The authors report a case of exuberant cutaneous ulcers on the buttocks of a diabetic patient. Microbiologic examination allowed the identification of Klebsiella pneumoniae and complete resolution was achieved with the appropriate antibiotic
Langerhans cell histiocytosis (LCH) is a heterogeneous group of diseases characterized by a pathological proliferation of cells phenotypically similar to Langerhans cells. The disease course is variable, alternating between resolving and potentially fatal forms. The diagnosis is based on clinical appearance and confirmed by CD1a positivity and / or immunohistochemistry. We report the case of a male child of 3 m...
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