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During the period 1992-1998,we diagnosed orbital tumors in 23 cases at the MLU Halle-Wittenberg. In the intraconal compartment we mostly saw cavernous hemangiomas and neurogenic tumors. Lymphomas and a primary meningioma were located in the extraconal space. Beneath the periosteum, bony processes, tumors of the sinuses, dermoid-and epidermoid-cysts normally occur, but we only observed metastases and hematomas. Furthermore,tumors of the lacrimal gland and inflammatory lesions were diagnosed. Orbital tumors are uncommon lesions, whose location in the orbit gives an important hint to differential diagnosis, because a high percentage of various pathologies is located in special compartments of the orbit. According to our results,the MRI-scan is usually sufficient for differentiation and for preoperative planning in order to reduce the X-ray dose of the lens. CT-scans with contrast are sometimes necessary for examining bone destroying processes and for planning the surgical approach to removing the tumor. X-rays of the skull widely lost their importance in the exact diagnostic of orbital tumors. B-scan ultrasonic imaging is reserved for screening and follow-up examination. Despite the use of MRI and CT scanning, the histological examination remains necessary.

IntroduçãoFístula aorto-brônquica é uma conexão entre a aorta e o brônquio, que pode causar hemoptise severa e fatal. A mortalidade é alta por causa da hemoptise maciça e pela dificuldade do diagnóstico, pois apenas em raríssimos casos a fístula pode ser visualizada em exames de imagem 1,2 . Ela pode se desenvolver a partir de um aneurisma da aorta torácica descendente, após trauma, ou pode surgir como sequela cirúrgica no reparo de defeitos cardíacos congêni-tos 3 . Mesmo quando imediatamente reconhecida e tratada, a fístula aorto-brônquica possui alto risco de letalidade. Algumas alternativas de tratamento vêm sendo relatadas recentemente, incluindo ponte extra-anatômica e homoenxerto criopreservado, porém pouco sabe-se sobre o tema devido a sua baixa frequência 4 . Os autores apresentam um relato de caso de tratamento endovascular, realizado com êxito, de pseudoaneurisma de aorta torácica com fístula ResumoFístula aorto-brônquica é uma conexão entre a aorta e o brônquio, e mesmo quando imediatamente reconhecida e tratada possui alto risco de letalidade. Pode se desenvolver após cirurgias de aorta, e é geralmente uma consequência de pseudoaneurisma. A hemoptise, massiva ou intermitente, é o principal sintoma apresentado. O tratamento convencional da fístula aorto-brônquica é a cirurgia aberta de aorta torácica, com reconstrução traqueobrônquica. Recentemente, o reparo endovascular tem sido proposto como uma alternativa. Os autores apresentam um relato de tratamento endovascular, realizado com êxito, de pseudoaneurisma de aorta torácica com fístula aorto-brônquica 22 anos após cirurgia para correção de coarctação aórtica.Palavras-chave: Aorta; cardiopatias congênitas; fistula; hemoptise; falso aneurisma. AbstractAortobronchial fistula is an abnormal passage between the aorta and the bronchus, and even when recognized and treated promptly, it carries a high risk of fatality. It can develop after aortic operations, and it is usually the result of a pseudoaneurysm. Massive or intermittent hemoptysis is the main symptom. Conventional treatment of aortobronchial fistula is open surgery of the thoracic aorta with tracheobronchial reconstruction. Recently, endovascular repair has been proposed as an alternative. The authors report a case of successful endovascular treatment of thoracic aortic pseudoaneurysm with aortobronchial fistula, 22 years after surgical correction of the aortic coarctation.

Aneurysms of the middle colic arterial branches are extremely rare, the main manifestation occurs due to the rupture and intraabdominal bleeding making death possible in up to 70% of cases. Herein, we report a case of a male patient, who is 50 years old and displays intermittent, recurrent, and self-limited episodes of a digestive hemorrhage that has been symptomatic during the course of a three-month investigation. After an extensive investigation, the patient was submitted to angiography detecting a pseudoaneurysm in the middle colic branch, being treated by embolization using micro-coils. Intermittent digestive hemorrhages from an obscure source can represent a diagnostic challenge, due to the high degree of clinical suspicion for performing the correct differential diagnosis. Arteriography must not be delayed whenever a pseudoaneurysm with active bleeding is suspected, as this exam is selected for diagnosis and the preferred method for conclusive treatment.