European Journal of Radiology Extra最新文献

Wandering spleen is a rare condition occurs from a failure of fusion of the mesogastrium and the lining body wall epithelium. Acute tortion of wandering spleen is a potentially fatal and difficult to diagnose surgical emergency. So, diagnosis may still be missed despite diverse diagnostic modalities. We present a case of 24-year-old female, who had severe abdominal pain in left upper abdomen and a palpable mass in left iliac with Leukocytosis. Initial CT scan revealed a hypodense area in left iliac fossa, which was labelled and treated as intraabdominal abscess. Following her miscarriage, she was referred to us due to persistent pain and fever. A diagnosis of wandering spleen was made on ultrasound and confirmed on CT scan with typical signs of tortion. Splenectomy was done with uneventful recovery.

WS ranges from asymptomatic to a life threatening abdominal emergency and diagnosis may be challenging due to vague and nonspecific features. Early diagnosis of tortion is crucial in the management and contrast enhanced CT is the best modality to diagnose WS.

Calcific tendinitis is a benign inflammatory disorder characterised by deposition of calcium hydroxyapatite crystals in tendons and is commonly seen in tendons around shoulder joint but can also sometimes be encountered in other sites including the hip, wrist, elbow, hand, neck and foot. Calcific tendinitis can clinically mimic many other pathologic entities like infection, gout, myositis ossificans or avulsion fracture which frequently leads to misdiagnosis and inappropriate management. Imaging plays an important role in recognizing and evaluating calcific tendinitis and in differentiating this entity from other pathologic conditions. Calcific tendinitis is largely a self-limiting process which usually responds to conservative treatment although in refractory cases invasive options like steroid injection, needle aspiration or surgery can be considered. Early and accurate diagnosis can prevent needless tests and interventions which the patient may be subjected. We report a case of acute calcific tendinitis involving a rare site (tibialis posterior tendon) with its multimodality imaging appearance.

Single coronary artery (SCA) is a rare congenital anomaly. Only single coronary artery arises from the aortic trunk, by a single coronary osteum, supplying the entire heart. Multiple subtypes of this uncommon abnormality are described. It is important to know about these subtypes, since further management of the patient is decided by it. We present a case of 54 years old man, who was diagnosed with complete absence of the right coronary artery and elongated dominant left circumflex artery, extending further in the right atrio-ventricular groove (L-I type). Another case is of 45 years old woman, who presented with single right coronary artery arising from the aortic sinus and which gave branching to the smaller left coronary artery, further dividing into smaller LAD and LCX (R-IIA type).

We present a rare case of widespread fibromuscular dysplasia (FMD) involving the cervico-cephalic arteries associated with multiple dissections, saccular aneurysm and a carotid-cavernous sinus fistula (CCF). We also treat the CCF with combined coil embolism and stent graft implantation.

Microwave thermal tumor ablation is an expanding treatment option to obtain local control of focal liver tumors with complication rates similar to other thermal ablation techniques. We report two cases of portal vein segmental branch thrombosis identified by US and CT imaging 40 days following percutaneous microwave ablation. One patient was treated for hepatocellular carcinoma in a cirrhotic liver, the other was treated for metastatic colon cancer in an otherwise normal liver. Both patients were clinically asymptomatic when the thromboses were identified. Evaluation of the vascular anatomy surrounding the tumor and of risk factors for development of portal vein thrombosis is critical when selecting patients for microwave tumor ablation.

Proximal femoral focal deficiency is a rare anomaly, occurring with a frequency of approximately 1/50,000–2,00,000 live births. This congenital anomaly characterized by failure of normal development of the proximal femur and hip joint, and usually seen with fibular aplasia/hypoplasia. Proximal femoral focal deficiency is considered to be the main anomaly involved in congenital asymmetry of the lower limbs.

Of the posterior fossa tumors in children, 30–40% are due to medulloblastomas. We report a 4-year-old boy, who presented with vomiting and headache, and was subsequently diagnosed with anaplastic medulloblastoma. Neuroimaging revealed a posterior fossa mass, with unusual extensive supratentorial and leptomeningeal dissemination, illustrating the aggressive nature of this tumor.

Intramedullary schwannoma are very rare, corresponding to 0.3% of all intraspinal tumors. MRI examination is the modality of choice for the diagnosis of spinal cord tumor. We report a case of intramedullary schwannoma explored by magnetic resonance imaging. The literature is reviewed about of this rare localization of schwannoma.

Peritoneal dialysis (PD) is a safe and reliable modality of renal replacement therapy in patients with end stage renal disease (ESRD). One of the major issues that PD should overcome is its relatively higher technical failure compared with hemodialysis (HD). Dialysate leakage is a common mechanical complication that often lead to technique failure, however, it is hard to diagnose in the most positions. MR peritoneography is a promising method which can reveal the dialysate leakage visually. Here we report a PD patient suffered from dyspnea when she was under PD therapy, the patient was diagnosed with diaphragm leakage by MR peritoneography.

Rosai–Dorfman disease (RDD) is an idiopathic, non-neoplastic, lympho-histiocytic proliferative disorder characterized by sinus histiocytosis and massive lymphadenopathy. Intracranial RDD is mainly a disease characterized by dura-based masses and/or diffuse meningeal thickening and included a broad differential diagnosis radiologically. The authors report an unusual case of a 38-year-old male patient presenting with bilateral multiple intracranial dura-based nodules and diffuse meningeal thickening as well as intra-spinal canal involvement. The MR imaging and histo-pathological features of the disease are discussed. Histology with immunohistochemical analysis, in which it demonstrates emperipolesis (lymphophagocytosis) feature and that most of the histiocytes stained with strong positivity for S100 and CD68 proteins, is essential for a definitive diagnosis.