[en] Unilateral pulmonary vein atresia is a rare anomaly, usually associated with symptoms of recurrent hemoptysis and pneumonia in early childhood. Only one report of an asymptomatic adult patient can be found in the literature. We present the case of an asymptomatic patient with unilateral right pulmonary vein atresia in a 20 year old man. Chest radiograph and multidetector computed tomography showed not only pulmonary vein atresia, pulmonary artery hypoplasia, but also cystic lung changes on thin section CT, along with septal and bronchovascular bundle thickening, and ground-glass opacity. Unilateral pulmonary vein atresia could be another disease which can show cystic lung changes on thin section chest CT

[en] Hereditary hemorrhagic telangiectasia (HHT) or Osler-Weber-Rendu disease is an autosomal dominant disorder characterized by repeated episodes of bleeding. Multiple telangiectases consisting of thin-walled, dilated vascular channels with arteriovenous communication may involve, for example, mucocutaneous tissue, the gastrointestinal tract, and the liver, lung, and brain. We report the imaging findings of two cases of HHT involving arteriovenous malformation of both the lungs and liver, a rare condition. Chest radiography revealed a round mass, while helical CT showed a feeding artery and draining vein with arteriovenous malformation in the lung. Color Doppler sonography revealed an enlarged and tortuous hepatic artery with high systolic velocity. CT demonstrated an enlarged hepatic artery, arteriovenous shunt, and early draining hepatic vein in the liver. Celiac angiography showed arteriovenous malformation

[en] Pigmented villonodular synovitis (PVNS) is a synovial lesion of joints or tendon sheaths, characterized by villous and nodular overgrowth of the synovial membrane. It commonly occurs in synovial joints of the appendicular skeleton, particularly those of the knee and hip, but rarely affecting those of the spine. We report a case of PVNS of the lumbar spine mimicking epidural mass

[en] Male breast cancer is an uncommon disease with an incidence of 1 percent of all breast cancers. Male breast cancer usually appears as a small mass with well defined contour which is eccentrically located in relation to the nipple on mammogram. We report a case of breast cancer in a 51 year old man with mammographic appearance of large hyperdense mass with nipple inversion and axillary lymphadenopathy, gray-scale sonographic finding of homogeneous solid mass and multiple tumor vessels within the mass on color Doppler ultrasound

[en] Primary pulmonary amyloidosis is a rare diesase, and is classified as either tracheobronchial or parenchymal; the latter is also divided into nodular and diffuse alveolar septal forms. The alveolar septal form is extremely rare and usually produces reticular and nodular opacities. We describe a case of alveolar septal pulmonary amyloidosis manifested as multiple small nodules on chest radiograph and disseminated micronodules mainly in centrilobular and subpleural location without reticular opacities, on HRCT

[en] Many drugs can result in a variety of pathologic reactions in the lung, especially the cytotoxic drugs. Among cytotoxic drugs bleomycin is a prototype. Bleomycin-related pulmonary toxicity is usually known as dose-dependent and can be enhanced with concurrent oxygen therapy, irradiation, or other chemotherapeutic agents. The incidence of bleomycin-induced pulmonary toxicity has been reported as varying from 2 to 46%, and 1% of fatal lung disease. We describe the radiographic and HRCT findings of bleomycin-related pulmonary toxicity developed in two patients: one in ovarian teratocarcinoma, the other malignant lymphoma patient. Chest radiographs and HRCT of these patients showed ground-glass opacities, consolidation, linear and reticular opacities, and interlobular septal thickening. These abnormalities were bilateral, and symmetrical and were found predominantly in the area of mid- and lower-lung zone

[en] Assessment of the size and number of gallstones is important in the external shock wave lithotripsy. The authors retrospectively analyzed 69 sonograms and 25 oral cholecystograms in terms of size and member of gallstones and compared with gallstones removed at surgery. The size and number of gallstones were correctly diagnosed in 41%(28/69) by sonography and 54%(7/13) by oral cholecystography. When stones were multiple, the assessment of the size and number were difficult, sonogram being correct in 11%(2/18)and oral cholecystogram being correct in 66%(2/3). On the basis of our results, painstaking examination is necessary in the evaluation of gallstones in patients undergoing external shock wave lithotripsy

[en] Absence of the azygos vein is a very rare variant of venous tributary arrangement which has been reported only in few cases so far. We hereby introduce the chest radiographic and computed tomographic findings of the congenital absence of the azygos vein with bilateral superior vena cava, incidentally detected during a follow-up for rectal cancer. The hemiazygos vein is drained into persistent left superior vena cava via left superior intercostal vein, so called the 'aortic nipple'.

[en] Thantophoric dysplasia is the most common lethal congenital chondrodysplasia with characteristic features of narrow thorax, short rib, severe platyspondyly, short bowed limbs and skull deformity, etc. It is not a hereditary disorder and there is usually no family history of dysplasia. We experienced a case of thanatophoric dysplasia at 38 weeks of gestation with antenatal sonographic and abdominal radiographic findings of small throax, short bowed extremities with surrounding thickened soft tissues and marked platyspondydly. Soon after delivery, the baby died and post-mortem radiographs showed the characteristic findings of thanatophoric dysplasia

[en] Lipoma is one of the unusual benign breast neoplasms and usually manifests at fatty breast of women at the age of 40 to 60. We experienced a case of large breast lipoma nearly replacing the whole left breast parenchymal tissue with mammographic finding of well-defined radiolucent mass, sonographic finding of hyperechoic mass with disorganized echopattern and computerized tomographic finding of very low attenuation mass, characteristic to adipose tissue, in a young woman of her dense breast