Imaging features of alveolar soft-part sarcoma: a report from Children's Oncology Group Study ARST0332.

Objective: There are few studies in the literature regarding the imaging features of alveolar soft-part sarcoma (ASPS). We performed a comprehensive assessment of the imaging characteristics of this rare tumor to determine whether there are features that suggest the diagnosis.

Materials And Methods: Twenty-two subjects with ASPS underwent pretherapy imaging as part of enrollment in Children's Oncology Group protocol ARST0332 for the treatment of nonrhabdomyosarcoma soft-tissue sarcomas: 16 patients underwent MRI; three, CT; and three, both MRI and CT.

Radiographic findings in late-presenting congenital diaphragmatic hernia: helpful imaging findings.

Background: Imaging findings in delayed presentation of congenital diaphragmatic hernia can be confusing and misleading, resulting in a delay in diagnosis.

Objective: To evaluate the often puzzling plain film findings of late-presenting CDH in an effort to determine whether any of the findings could be helpful in arriving at an early diagnosis.

Material And Methods: We reviewed and documented the plain film findings and clinical data in eight patients seen during the last 20 years with late-presenting CDH.

Intradural extramedullary Ewing tumor of the lumbar spine.

A 38-year-old man presented with a highly symptomatic lumbar intradural extramedullary tumor. MRI features strongly suggested a myxopapillary ependymoma, with a possible drop metastasis. No filum terminale or spinal-cord attachment to the tumor was seen intraoperatively.

Imaging and clinical features of an intra-axial brain stem schwannoma.

A 68-year-old man presented with a highly symptomatic brain stem tumor originally thought to be a brain stem glioma. Intraoperative MR imaging guidance was used to resect the tumor, and real-time evoked potentials improved during surgery. Pathology findings unexpectedly indicated that the tumor was an intra-axial brain stem schwannoma, a condition reported, to our knowledge, only 6 times previously in the literature.

Synchronous occurrence of gastrointestinal stromal tumor and gastric adenocarcinoma: a case report.

Only a few cases of synchronous occurrence of gastric adenocarcinoma and gastrointestinal stromal tumour are reported in literature. We report a case of 70 years old lady who presented with symptoms of nausea, vomiting, epigastric pain and weight loss. Barium meal examination showed stricture of the body and antrum.

Case report: intra-renal paraganglioma masquerading as a renal cyst.

A case is reported in which a 46-year-old normotensive male patient presented with large right-sided painless abdominal mass. On sonography there was a large cyst in the lower pole of right kidney. Intravenous urography showed distortion of pelvicollecting system and medial shift of upper right ureter.