A 42-year-old female was referred to the outpatient department, with features suggestive of lower respiratory tract infection. Physical examination was unremarkable. She had no history of any cardiac disease or injury to thoracic cage. She had no history of antecedent serious illness. Family history was also non-contributory.\nChest X-ray was done for the workup of respiratory symptoms, which showed abnormal contour and widening of right border of mediastinum (). In chest X-ray, the cervico-thoracic sign and hilum overlay sign were present in posteroanterior (PA) view. Lateral view showed anterior bulging of mediastinum.\nComputed tomography (CT) of thorax was done for further workup in angiographic protocol which was suggestive of aneurysmal ectasia of SVC and patchy consolidation of right lower lobe. Aneurysmal ectasia of SVC measuring 4.5 × 5.5 cm in maximum dilatation and for a length of 8.9 cm without internal thrombosis or dissecting flap was present ( and ). No other vascular anomalies were detected.\nSince CT did not reveal any signs of obstruction, we believe that the SVC aneurysm is primary and can be classified as congenital primary superior vena caval aneurysm (CPSVCA), class 1A as per Abott’s classification (1964) [].
A 30-year-old, asymptomatic female presented to our hospital for a physical examination. The patient had a history of diabetes mellitus and no history of cigarette smoking, hepatitis, tuberculosis, hypertensive disease, or coronary disease. Written informed consent was obtained from the patient for the publication of the present study. Enhanced CT (Philips, Brilliance ICT CP 200063) of the chest revealed an anterior mediastinal oval tumor 2.3 × 1.7 × 1.3 cm in size with border regularity and without necrosis and calcification (Fig. ). A preoperative diagnosis of thymoma was considered due to the enhanced CT features. Routine blood, coagulation function, liver function, serum electrolyte, and electrocardiogram results were all within normal limits (Table ). For the purpose of providing a definitive diagnosis and treatment for an anterior mediastinal tumor such as thymoma, video-assisted thoracoscopic surgery (VATS) was performed under general anesthesia. Histopathological examinations using hematoxylin and eosin staining (Sinopharm Chemical Reagent Co., Ltd., Shanghai, China) revealed that the tumor exhibited the typical histological findings of a cavernous hemangioma, as it was comprised of a proliferation of sized vessels (Fig. ). The patient presented with chylothorax on the second postoperative day and was discharged on the 13th postoperative day. One-year post surgery, the patient was alive with no evidence of tumor recurrence.