domingo, 18 de dezembro de 2011

Takayasu Arteritis




















A arterite de Takayasu é uma doença inflamatória de causa desconhecida que afeta a aorta e seus ramos. Embora já tenha sido relatada em todo o mundo, ela mostra uma predileção por mulheres asiáticas jovens. Para cada homem com a doença, existem oito mulheres que tem. A idade de surgimento geralmente está entre os 15 e 30 anos.

Takayasu's arteritis (also known as "aortic arch syndrome", "nonspecific aortoarteritis" and the "pulseless disease" is a form of large vessel granulomatous vasculitis with massive intimal fibrosis and vascular narrowing affecting often young or middle-aged women of Asian descent. It mainly affects the aorta (the main blood vessel leaving the heart) and its branches, as well as the pulmonary arteries. Females are about 8-9 times more likely to be affected than males.Patients often notice the disease symptoms between 15 and 30 years of age. In the Western world, atherosclerosis is a more frequent cause of obstruction of the aortic arch vessels than Takayasu's arteritis. Takayasu's arteritis is similar to other forms of vasculitis, including giant cell arteritis.Due to obstruction of the main branches of the aorta, including the left common carotid artery, the brachiocephalic artery, and the left subclavian artery, Takayasu's arteritis can present as pulseless upper extremities (arms, hands, and wrists with weak or absent pulses on the physical examination) which may be why it is also commonly referred to as the "pulseless disease (in Wikipédia)

F. Marques
Senior Radiographer

terça-feira, 11 de outubro de 2011

Mandibular lesion








































































































































































































































































Cysts and tumours of the jaw are relatively common. Clinical, radiologic, and pathologic features allow the diagnosis to be made. Cysts and tumours can develop from tooth derivatives (odontogenic) or other tissues (nonodontogenic).
Radicular cysts are by far the most common type of odontogenic cyst and are associated with caries. Dentigerous cysts are the next most common cyst, and they vary in size and may cause massive destruction of the jaw.
Unlike ameloblastomas, dentigerous cysts do not exhibit an extracystic soft-tissue mass, but ameloblastomas, mucoepidermoid tumours, and carcinomas may develop on the wall of a dentigerous cyst.
Onodontogenic cysts include the fissural cyst, solitary bone cyst, and static bone cavity. Cysts are usually small and asymptomatic; however, some may become multiloculated and are difficult to distinguish radiologically from an ameloblastoma
Benign odontogenic tumours include the ameloblastoma, calcifying epithelial odontogenic tumour (Pindborg tumour), odontoma, odontogenic myxoma, and cementoma.
In Dr. Sumaila Seemi, Lahore.




Senior CT Radiographer
Marques, F.

quarta-feira, 31 de agosto de 2011







O nosso colega Fernando Marques, que tanto contribuiu para este blogue, partiu para novas aventuras profissionais no norte da Europa. Desejo-lhe muita sorte e muito sucesso no seu novo trabalho. No entanto o convite de participar neste blogue continua em aberto, até porque somos profissionais da imagem. Qualquer caso interessante, qualquer imagem radiológica será bem vinda a este blogue.


Our colleague Fernando Marques, who contributed so much to this blog, went to new professional adventures in Northern Europe. I wish you much luck and much success in his new job. Yet the invitation to participate in this blog remains open, because we are professional image. Any interesting case, any radiological imaging is welcome to this blog.