No abstract available.
Animals ; Rats* ; Reperfusion*

PURPOSE: To report the first case of pigmented choroidal metastases without enucleation diagnosed with fine-needle aspiration biopsy. CASE SUMMARY: A 47-year-old male was referred to our clinic with a suspected diagnosis of choroidal melanoma in his left eye. Positron emission tomography-computer tomography used to evaluate systemic metastases revealed lung cancer. Pathology of the detected lung mass was primary lung neuroendocrine tumor. To differentiate choroidal metastasis and primary choroidal melanoma, we performed a fine-needle aspiration biopsy for choroidal tumors. The cytology showed results favoring metastatic atypical carcinoid and the patient was started on systemic chemotherapy. CONCLUSIONS: All pigmented choroidal tumors are not choroidal melanomas and choroidal metastases may be pigmented. The present case suggests that proper systemic evaluation and biopsy for suspected choroidal tumor could be helpful in diagnosis.
Biopsy ; Biopsy, Fine-Needle ; Carcinoid Tumor ; Choroid* ; Diagnosis ; Drug Therapy ; Electrons ; Humans ; Lung ; Lung Neoplasms ; Male ; Melanoma* ; Middle Aged ; Neoplasm Metastasis* ; Neuroendocrine Tumors ; Pathology

PURPOSE: The aim of this study was to examine the usefulness of positron emission tomography (PET)-computed tomography (CT) in the pre-operative staging of gastric cancer. MATERIALS AND METHODS: Between February 2006 and August 2008, PET-CT and CT were performed on 70 patients diagnosed with gastric cancer by gastrofiberscopic biopsy. The sensitivities, specificities, positive predictive value (PPV), and negative predictive value (NPV) of PET-CT and CT imaging for the detection of gastric cancer TNM staging were compared. RESULTS: The detection rates for the primary tumor were as follows: PET-CT, 81.4% (57/70); and CT, 42.9% (30/70). For both early gastric cancer (EGC) and advanced gastric cancer (AGC), PET-CT was more accurate than CT in detecting the lesions. As the size of the tumor exceeded 3 cm, the detection rate increased. The sensitivities, specificities, PPV, and NPV of PET-CT for lymph node staging were 55.6%, 81%, 86.2%, and 45.9%, while the sensitivities, specificities, PPV, and NPV of CT were 40.0%, 85.7%, 85.7% and 40%, respectively. One case of multiple liver metastasis and two cases of dual primary cancer (rectal and pancreatic cancers) were detected by PET-CT. PET-CT also had a higher detection rate for all histologic types of primary tumors. PET-CT was more accurate than CT in detecting primary gastric cancer lesions. The detection of nodal metastasis by PET-CT was similar to CT; small-sized tumors or EGC detection rates were not high. However, PET-CT provided additional information to detect distant metastases and dual primary cancers and reduced unnecessary laparotomies to detect peritoneal seeding or carcinomatosis. CONCLUSION: It would be useful to make a pre-operative diagnosis of gastric cancer and determine treatment if PET-CT were added to other routine pre-operative studies.
Biopsy ; Electrons ; Humans ; Laparotomy ; Liver ; Lymph Nodes ; Neoplasm Metastasis ; Neoplasm Staging ; Positron-Emission Tomography ; Seeds ; Stomach Neoplasms

No abstract available.

In patients with inflammatory bowel disease (IBD), cytomegalovirus (CMV) infections could aggravate the course of IBD but it is difficult to distinguish CMV infection from IBD exacerbation endoscopically. Usually, CMV tends to localize to the colon and other organic involvements were reported very rare in the IBD patients. Herein, we report a case that CMV gastric ulcer complicated with pyloric obstruction in a patient with ulcerative colitis during ganciclovir therapy, which was resolved by surgical gastrojejunostomy with review of literature.
Colitis, Ulcerative* ; Colon ; Cytomegalovirus* ; Ganciclovir ; Gastric Bypass ; Gastric Outlet Obstruction ; Humans ; Inflammatory Bowel Diseases ; Stomach Ulcer* ; Ulcer*

No abstract available.
Hepatocytes* ; Macrophages* ; Muscle, Smooth, Vascular* ; Nitric Oxide* ; Rhodiola*

Gastric cancer is the most common malignancy in Korea. Although five years survival rate of gestric cancer has been gradually improved due to advances in the diagnostic technique and therapeutic modalities, the advanced gastric cancer remains a disease with poor pragnosis. At the time of diagnosis, the disease, is usually advanced and longterm survivor is uncommon without a proper surgical treatment or chemotherapy. We experienced a case of advanced gastric cancer who lived for more than 6 years after making a diagnosis, without curative surgical therapy or chemotherapy. The patient at age of 76 year-old, was seen in St. Mary's hospital due to gastroinestinal bleeding in January of l985. A large ulcerating cancer in the diameter of 2.0 cm was found at the posterior wall of body with endoscopy and confirmed the diagnosis of stomach cancer by the endoscopic biopsy. He was recommended the surgical intervention of gastric cancer but he denied the operation due to his age, He had been treated symptomatically with H2 receptor antagonist and antacid with relief of symptoms. Thereafter he had been followed-up clinically at every 2-4 weeks, and the lesion was examined 3-4 times in a year endoscopically, In May l990, an endoscopic esophageal dilation was done due to esophageal stricture with tumor invasion at the lower esophageal sphincter. He was expired in July, 1991 in this hospital. Here we report a case of long term survived advanced gastric cancer who had been followed-up for 6 and half years clinically and endoscopically with review of literatures.
Aged ; Biopsy ; Diagnosis ; Drug Therapy ; Endoscopy ; Esophageal Sphincter, Lower ; Esophageal Stenosis ; Hemorrhage ; Humans ; Korea ; Stomach Neoplasms* ; Survival Rate ; Survivors ; Ulcer

No abstract available.
Drug Therapy* ; Neutropenia*

Little has been known about clinical outcome in computed tomography(CT) documented intraventricular hemorrhage (IVH), especially in the third and fourth ventricles. A series of 114 patients with IVH in spontaneous intracranial hemorrhage diagnosed by CT, from January 1994 to December 1996, were studied retrospectively. The clinical findings, especially Glasgow Outcome Score(GOS), of these patient were compared with computed tomographic parameters on the Graeb's score, evidence of third ventricular hemorrhage, patency of fourth ventricle and hemorrhagic dilatation of fourth ventricle. The results were as following: 1) The underlying etiologies, in descending order, were hypertensive intracerebral hemorrhage(61.4%), subarachnoid hemorrhage(16.7%), moyamoya disease(13.2%), vascular malformation(5.3%), and unknown cause(3.5%). Moyamoya disease was the most common cause of pure IVH. 2) The bifrontal index (BFI), as an indicator of acute hydrocephalus after IVH, was closely correlated with consciousness level on admission, but not with GOS. 3) Graeb's score was correlated with GOS, but not with the volume of the intracerebral hematoma. 4) The third ventricular hemorrhage was associated with a worse outcome and hemorrhagic dilatation(>10.0mm) was associated with high mortality. 5) The absence of patency and the lateral dilatation(>20.0mm) in the fourth IVH was correlated with outcome. 6) In patients having the hemorrhagic dilatation of the fourth ventricle, Graeb's score and volume of intracerebral hematoma did not affect the outcome. In conclusion, Graeb's score, hemorrhagic dilatation of third ventricle, absence of fourth ventricle patency and lateral dilatation of the fourth ventricular hemorrhage in CT findings are correlated with the outcome in spontaneous IVH.
Consciousness ; Dilatation ; Fourth Ventricle ; Hematoma ; Hemorrhage* ; Humans ; Hydrocephalus ; Intracranial Hemorrhages ; Mortality ; Moyamoya Disease ; Retrospective Studies ; Third Ventricle

We evaluated on the calculation accuracy of treatment planning system (TPS) with phantom having convex and concave surface. The TPS is Eclipse (Varian, USA) using both algorithms AAA and PBC for photon dose calculations. PBC algorithms have three corrections of Batho, modified Batho (M-Batho), and equivalent TAR (E-TAR). The field sizes were 10x10 cm2 and 20x20 cm2, and MLC-shaped fields for these fields. We measured doses at three depths 5, 10 and 15 cm in phantom of SSD=90 cm in the condition of inserted farmer chamber. For given conditions, we have calculated dose with these algorithms and compared them with measured doses. In AAA the calculated doses (dose/MU) were agreed to measured doses within +/-1% in flat and convex surface and were under estimated with -1.9% maximum in concave surface. In PBC the calculated doses were over estimated with +1.7% and +4.1% respectively in flat and convex surface and the differences were from -3.1% to +2.1% in concave surface. In comparison of criteria from AAPM and IAEA reports, and statistical analysis for these results, it is found that the AAA's results are in good agreement with measured values and the M-Batho's results are generally good agreed with measured values among PBC algorithms.
Water