Primary Meningeal Pheochromocytoma: A Case Report

Pheochromocytoma is a rare endocrine tumor arising from the chromaffin tissue, and it is able to produce and secrete catecholamines. Lymph nodes, liver, lung and bone are the most frequent sites of metastasis. We report here on a case of pheochromocytoma arising from the dura in a patient who was surgically treated for bilateral pheochromocytoma five years previously.

Two Case Reports of Intussusception in Patients with Peutz-Jeghers Syndrome

Peutz-Jeghers syndrome(PJS) is a relatively rare autosomal-dominant disease characterized by the occurrence of extensive mucocutaneous hyperpigmentation and gastrointestinal polyps. PJS patients are considered to have a high prevalence of intussusception due to polyps. We report the radiological findings in two cases of intussusception due to polyps in patients with PJS, and review the literature.

Percutaneous Bone Biopsy: Fluoroscopic Guidance

PURPOSE: We evaluated the diagnostic accuracy and clinical usefulness of fluoroscopy-guided bone biopsy. MATERIALS AND METHODS: A total of 31 patients with various skeletal lesions underwent fluoroscopy-guided bone biopsies. The targets were long bones in 16 cases, pelvic bones in 7 cases, spines in 6 cases, and ribs in the rest 2 cases. RESULTS: The overall accuracy was 71%(22/31). The accuracy was 100% in case of primary sarcoma and multiple myeloma. But it was low in malignant lymphoma(1/4), malignant fibrous histiocytoma(0/1), and nonossifying fibroma(0/1). CONCLUSION: Percutaneous fluoroscopy-guided bone biopsy is a simple, safe, not-expensive, and rather accurate diagnostic procedure in evaluation of bone tumors. In addition to that, it is useful in the managment planning and fllow-up of the patients.

MR imaging of synovial sarcoma

MR images of seven patients with histologically documented synovial sarcoma were reviewed to find the suggestive or pathognomonic findings of the disease. MR appearance of the tumor was inhomogeneous, multiseptated mass with various degree of internal septation and infiltrative tumor margin. The signal intensity of the mass was slightly hyperintense relative to muscle on T1-weighted image and hyperintense relative to subcutaneous fatty tissue on T2-weighted image.

Chest CT findings of recurrent esophageal cancer after transthoracic esophagectomy with esophagogastrostomy

Surgical resection of esophageal cance has played a prominent role in both cure and palliation. The radiologic evaluation of postesophagectomy patients is directed at the detection of normal and pathological appearances after surgical resection. Since early detection of recurrent tumor is important in the management of patients who have undergone esophagectomy, we undertook a retrospective study to evaluate the findings of recurrence on CT in postesophagectomy patients. Between January 1988 and July 1991, 26 patients who had undergone transthoracic esophagectomy with esophagogastrostomy for epidermoid carcinoma of the esophagus with following reoccurance were examined by chest CT. The group included 25 male and one female patients were aged 45-71 years(mean, 53). All patients had studies done immediate post operative 7-10 days. The CT were performed with a CT 9800 scanner (GE Medical System, Milwaukee) after administration of oral contrast media and intravenous injection of contrast media. The findings seen on CT were cnfirmed by biopsy in five cases and by clinical, radiological follow-up manifestation in 21 cases. The abnormalities that were demonstrated on follow-up CT were adenopathy-mediastinal node(ten cases) or abdominal node(five cases), local recurrence-previous tumor site (five case), anastomotic siteI(two cases) or thoracases), peicardial effusion(two cases). Our results indicate that serial chest CT play an important role in the evaluation of the patients after transthoracic esophagectomy with esophagogastrotomy.