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  • Title: [Double superior vena cava with drainage of the right superior vena cava into the left auricle. Presentation as a cerebral abscess in an adult].
    Author: Rey C, Marache P, Manouvrier J, Ducloux G.
    Journal: Arch Mal Coeur Vaiss; 1986 Oct; 79(11):1645-8. PubMed ID: 3103575.
    Abstract:
    A 44 year old man presented with a cerebral abscess, the location of which suggested a septicaemic origin. Although the patient was not cyanosed, a cardiological work-up was requested to exclude a right-to-left shunt. This showed a double abnormality of the systemic venous drainage: presence of an abnormal left superior vena cava draining into the coronary sinus and of a right superior vena cava draining into the left atrium. These two vena cava intercommunicated by anastomoses. Angiography in the right superior vena cava after occlusion by balloon catheter at its junction with the left atrium showed flow from the right to the left superior vena cava and to the azygos system. Simple ligature of the right superior vena cava was therefore performed to prevent recurrence of cerebral abscess. This case is rare and of interest because of the presence of two superior vena cavae, one on the right draining into the left atrium and the other on the left draining into the coronary sinus, with anastomoses between the two superior vena cavae. This double abnormality of systemic venous drainage explains the absence of cyanosis and therefore the relatively late detection of this malformation.
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