Side Of Abdominal Aorta Research Articles

Pulmonary sequestration infant with unusual presentation, a case report

Introduction: Pulmonary sequestration (PS) is characterized by a separate segment of the lung that receives anomalous vascular supply separate from the pulmonary arteries. Here we are report a 4-year-old girl with dyspnea and recurrent pneumonia who was finally diagnosed as a case of PS.Case presentationA 4-year-old girl was admitted to Imam-Reza hospital, Mashhad city, Iran, with a history of coughing and dyspnea from two years ago. On the CXR, consolidation can be seen in the left lower lobe. As there was a high likely hood of aspiration or pneumonia following her past medical history, the patient underwent bronchoscopy. More investigation with HRCT; revealed vascular anomaly. CMRI showed no cardiac abnormality. More findings showed a large collateral artery originated from left lateral side of abdominal aorta. This collateral artery went upward to the LLLL and anastomosed directly with two large posterior segmental tributary of the left lung pulmonary veins. Hyper-vascular pattern of both lungs was also observed in the MRI.ConclusionThis condition should be suspected in any infant with recurrent respiratory distress, or in anyone with recurrent pneumonia. To avoid misdiagnosis, PS should be considered in differential diagnosis in infants with chronic cough and dyspnea.

術前内照射および化学療法が著効し,根治切除し得た巨大異所性褐色細胞腫の1例

A 46-year-old man was found to be positive for occult blood at a medical checkup and was revealed to have a 14-cm tumor on the right side of abdominal aorta by a subsequent abdominal CT scan. The endocrinology laboratory data showed elevations in the levels of serum noradrenaline, and ectopic pheochromocytoma was suspected. The tumor was compressing the inferior vena cava and portal vein, the superior mesenteric artery and the pancreas. Since it would be difficult to cure by operation, neoadjuvant therapy was started using radioisotope therapy by I-131 metaiodobenzylguanidine (131I-MIBG) and chemotherapy (CVD therapy ; cyclophosphamide, vincristine, dacarbazine). He was treated with three courses of radioisotope therapy and 16 courses of chemotherapy, which significantly reduced the tumor size. This made radical resection possible ; we were able to avoid the merger excision of great vessels and other organs. On pathological and immunopathological findings, the tumor was diagnosed as ectopic pheochromocytoma. Regarding the safety and curability of the treatment, neoadjuvant therapy may be useful in treating very large tumors that show invasion of other organs.

Right Double Inferior Vena Cava (IVC) with Preaortic Iliac Confluence – Case Report and Review of Literature

Anomalies of the inferior vena cava (IVC) are uncommon and most of them remain asymptomatic. Though rare, anomalies of IVC can lead to severe hemorrhagic complications especially during aortoiliac surgery. Prior knowledge of these variations facilitates proper interpretation of radiological images and safe performance of interventional procedures and surgeries. During routine anatomical dissection of abdomen in a female cadaver we observed the presence of right sided duplication of IVC. Both IVCs were present on the right side of abdominal aorta, one ventral and the other more dorsal in position and named ventral right IVC and dorsal right IVC. The ventrally and medially placed IVC, which appeared to be the main IVC was formed by the union of two common iliac veins in front of the right common iliac artery (Preaortic iliac confluence-"Marsupial Cava"). The right external iliac vein continued as the more dorsally and laterally placed dorsal right IVC. The right internal iliac vein after receiving a transverse anastomotic vein from the external iliac continued as the right common iliac vein. This transverse anastomosis was present behind the right common iliac artery. The narrower dorsal right IVC joined the wider ventral right IVC just below the level of renal veins to form a single IVC. The abdominal aorta presented a convexity to the left.

Diagnosis and treatment features of extra-adrenal pheochromocytoma

目的 探讨和分析异位嗜铬细胞瘤的临床诊断和治疗特点.方法 分析我院异位嗜铬细胞瘤患者17例.结果 尿VMA及血尿儿茶酚胺升高定性诊断分别为16例(94.2%)和15例(88.2%),131I-MIBG显像诊断阳性4例,阳性率100%.B超探及14例(82.4%),CT诊断16例(94.2%),8例进行MRI诊断,阳性率100%.肿瘤平均直径4.6 cm.肿瘤位于腹主动脉旁肾门平面以上5例(29.4%)、以下1例(5.9%),下腔静脉旁肾门平面以上8例(47.1%)、以下2例(11.8%),膀胱壁1例(5.9%),其中肿瘤多发3例.手术切除肿瘤16例,术后高血压缓解15例,术后肿瘤复发3例、伴广泛转移1例.结论 检测尿VMA及血、尿儿茶酚胺可作为异位嗜铬细胞瘤定性诊断的初筛检查,1311I-MIBG显像定性诊断敏感性准确性高.B超可作为定位诊断的初筛,CT定位诊断准确可靠,MRI可很好地显示肿瘤毗邻和浸润范围。