133 research outputs found
Inflammatory Polyp of the Gallbladder Mimicking Early Polypoid Carcinoma
We treated a 69-year-old male with a 16-mm polyp of the gallbladder. Enhanced computed tomography demonstrated marked enhancement. With a tentative diagnosis of early polypoid cancer of the gallbladder, open cholecystectomy was performed. Intraoperative ultrasound showed hyperechoic spots on the surface of the polyp with an inner echopenic area. The histological diagnosis was an inflammatory polyp that manifested nonneoplastic, edematous stroma, and infiltration of lymphcytes and plasmacytes
Electronic structure and cohesive energy of silylmethyl fullerene and methanoindene fullerene solids
Using the density functional theory, we studied the energetics and electronic structures of chemically decorated fullerene solids, monoclinic phases of silylmethyl fullerene (SIMEF) and methanoindene fullerene (MIF), under the experimentally determined lattice parameters. Cohesive energies of these solids are 1.83 and 1.07 eV for SIMEF and MIF, respectively, despite the large intermolecular spacing owing to the functional groups. The SIMEF and MIF solids are semiconductors with a moderate band gap of about 1.2 eV with narrow dispersion band near the band gap. We also elucidated that these solids exhibit a strong anisotropic band dispersion relation near the gap, because of their large asymmetric molecular shape. The calculated electron effective masses range from 1.37m e to 7.91m e for the SIMEF solid and from 0.57m e to 4.23m e for the MIF solid
Paclitaxel-Based Chemotherapy for Advanced Pancreatic Cancer after Gemcitabine-Based Therapy Failure: A Case Series of 5 Patients
Background/Objectives: Gemcitabine (GEM) is a gold-standard chemotherapy agent for advanced pancreatic cancer. Because of the malignant character of the disease, nearly all patients show disease progression despite treatment with GEM-based chemotherapy; therefore, second-line chemotherapy may be beneficial for these patients. We report a retrospective analysis of 5 patients with advanced pancreatic cancer, treated with a paclitaxel-containing regimen as second-, third- or fourth-line chemotherapy after various therapies, such as a GEM-based regimen, S-1 regimen, and chemoradiation. We retrospectively analyzed the efficacy and adverse events, and evaluated the paclitaxel-containing regimens. A review of the literature is also discussed. Results: The median overall survival from the start of salvage therapy was 10.7 months. The disease control rate of the paclitaxel-containing regimen according to RECIST criteria was 60%, including complete response in 0 patients, partial response in 3, and stable disease in 2. Two patients had malignant ascites at the start of this salvage therapy, and in both of them the ascites and clinical complaints improved. Grade 3 and 4 hematological adverse events were observed in 2 patients and 1 patient, respectively. Conclusion: Salvage paclitaxel-based therapy could be beneficial to advanced pancreatic cancer patients who maintain good performance status after several chemotherapy failures
Relationships between activity of daily living, and oral cavity care and the number of oral cavity microorganisms in patients with cerebrovascular diseases
We examined the relationships among the activity of daily living (ADL), oral cavity care, and the number of oral cavity microorganisms in 40patients with cerebro-vascular diseases (CVD). The CVD patients were classified into 4groups, I, II, III and IV based on their ADL and the method used for oral cavity care. The ADL was highest in group I and lowest in group III. Only the patients of only group III could not eat by themselves and were receiving naso-esophageal feeding. Oral cavity care was performed by the patients themselves in groups I and IV, but was performed by caregivers in groups II and III. The group IV patients had no teeth, but could eat by themselves using full dentures. The numbers of microorganisms in the pharyngeal swabs from the 4groups were measured and expressed as colony-forming units (cfu). The numbers of both Staphylococci spp. and Candida spp. were significantly higher in group III than in the other groups. Moreover, Pseudomonas aeruginosa was isolated only from patients of group III (in about 66%). The oral cavity care by caregivers was almost the same in groups II and III, but the numbers of oral cavity microorganisms were significantly higher in group III than in group II. These results indicated that microorganisms grow more easily in the oral cavities of CVD patients with low ADL compared with CVD patients with higher ADL, and that eating is thought to be important for the prevention of an increase of microorganisms in the oral cavity
Successful Repeated Transcatheter Arterial Embolization (TAE) for Multiple Liver Metastases from Breast Cancer
A 46-year-old female was successfuly treated with repeated transcatheter arterial embolization (TAE) for multiple liver metastases from breast cancer. TAE using mitomycin C and epirubicin hydrochloride with lipiodol emulsion and gelatin sponge particles has been administered to the patient eight times over 4 years. She has also received systemic chemotherapy. She has survived for 6 years and 3 months after the detection of liver metastases
A Large Hepatic Cyst with Obstructive Jaundice Successfully Treated with Single-Incision Laparoscopic Deroofing
We herein present a case of hepatic cysts causing obstructive jaundice that was treated with single-incision laparoscopic deroofing. A 72-year-old female patient was referred to hospital due to a large hepatic cyst that compressed the intrahepatic bile ducts. The patient was scheduled to undergo single-incision laparoscopic deroofing. The EZ ACCESS? oval type (Hakko Co. Ltd.) was placed at the umbilicus using a 25-mm incision with two 5-mm trocars. An additional 12-mm port was placed at the left epigastric region. We unroofed and excised the cyst wall using a vessel sealing system in liver segment 4. After surgery, the patient was found to be asymptomatic. The unroofed cysts were completely diminished. Notably, the remnant liver had fairly regenerated. The estimated regeneration volume of the normal liver was 153 cm3. To prevent surgical complications, clinicians should perform adequate management and use of devices. To prevent postoperative recurrence of cysts, performing complete deroofing is essential. Single-incision laparoscopic deroofing contributes to improving the quality of life of patients and should be considered a standard treatment
Acute appendicitis in a rheumatoid arthritis patient treated with tocilizumab: report of a case
A 55-year-old woman had been treated for rheumatoid arthritis with tocilizumab 1 month prior to the onset of mild abdominal pain. Computed tomography revealed swelling of the appendix and ascites around the appendix. She was diagnosed with acute appendicitis and underwent emergency surgery. Although her symptoms and laboratory data indicated mild infection, surgery was conducted because of the computed tomography findings and because we believed that the physical findings and laboratory data were not dependable due to the tocilizumab.Upon surgery, a perforated inflamed appendix and abscess formation around the appendix were confirmed. Tocilizumab, which is relatively new, may conceal signs of infection or dull response to tests such as the Blumberg sign for peritonitis. It should be widely noted that the physical findings and laboratory data of patients with abdominal distress under tocilizumab treatment may be misleading
Gastric perforation caused by Candida infection:Report of a case
An 89-year-old female was admitted to our hospital because of fever and abdominal pain. The patient had used an antihypertensive agent, but had not used either antibiotics, steroids, or potent antacids. An abdominal CT scan revealed free air and ascites. An emergency operation was performed for acute peritonitis caused by a gastrointestinal perforation. A perforated ulcer was observed at the posterior wall of the gastric body. A distal gastrectomy with intraperitoneal drainage and a Billroth II reconstruction was performed. A histological examination demonstrated a perforated ulcer surrounded by Candida infection. The patient developed an abscess in the abdominal cavity, but was discharged on the 52nd postoperative day. Although gastrointestinal Candida infection is commonly seen in immunocompromised host with diabetics or malignant diseases, habitual use of strong antacids can also cause severe Candida infection of the stomach in healthy persons. In this case, it was thus concluded that there may have been a decrease in immunity in this patient because of her advanced age 89 years old and malnutrition
Radiotherapy for choroidal hemangioma
PURPOSE: Circumscribed choroidal hemangioma is an uncommon, benign vascular tumor that typically appears in the posterior pole of the eye. Visual acuity loss typically results from its exudation, followed by serous retinal detachment. The purpose of the study was to evaluate the efficacy and the safety of external beam irradiation in treating circumscribed choroidal hemangioma. METHODS: We treated 4 eyes of 4 patients with circumscribed choroidal hemangioma with external beam irradiation at Okayama University Hospital from 2002 to 2009. A total absorbed dose of 20 Gy (beam energy, 4, 10 MV) was applied to each of the 4 patients. Each patient received a single 2-Gy daily fraction for five consecutive days in a week, for two consecutive weeks. RESULTS: In all cases, the retinal detachment showed complete resolution within 8 to 48 days after treatment. A decrease in tumor thickness was observed in all cases except one in which the follow-up period was rather short (3.7 months). The visual acuity improved in all 4 eyes. No eyes showed deterioration of visual acuity. During follow-up periods of 3.7 months to 58.5 months, there were no signs of radiation-induced cataract, retinopathy or optic neuropathy
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