A 64-year-old man was admitted to our hospital to undergo examination of a pancreatic tumor accompanied by sudden epigastric pain. The tumor had a well-defined oval shape that was mostly less enhanced, with the exception of part of the tumor on the pancreatic head side, on contrast enhanced (CE)-CT. However, CE-CT performed one-month later revealed that the viable part of the tumor grew toward the pancreatic tail with the reduction of necrotic tissue. We performed distal pancreatectomy and the tumor was diagnosed as acinar cell carcinoma (ACC). One important characteristic of ACC is that it may develop morphological changes within a short period of time.Painful left bundle branch block (LBBB) syndrome is a rare disease that presents as simultaneous chest pain and transient LBBB without myocardial ischemia. We diagnosed a 72-year-old Japanese man with painful LBBB syndrome complicated by iron-overload cardiomyopathy. Phlebotomy was initially performed to improve myocardial iron deposition and conductive disturbance. Ironically, his chest pain was fully improved by the completion of incessant LBBB and walk-through phenomenon. However, this case demonstrates a clinically significant therapeutic strategy for cardiomyopathy-induced painful LBBB syndrome. Due to the lack of treatment guidelines, individualized treatment is required for each case of painful LBBB.Lymphoproliferative diseases have been associated with various autoimmune diseases. We experienced a case of non-chronic lymphocytic leukemia type monoclonal B-cell lymphocytosis (MBL) that was exacerbated by increasing prednisolone for dermatomyositis and then improved by decreasing the dosage. Because MBL is difficult to diagnose, cases like ours may not be rare. These findings will facilitate our understanding of the mechanism underlying lymphoproliferative diseases and autoimmune diseases.We herein report a case of intraperitoneal abscess as a postoperative complication of gastric endoscopic submucosal dissection (ESD). A 70-year-old man who underwent ESD for early gastric cancer sought consultation for abdominal pain on postoperative day 28. Abdominal computed tomography revealed intraperitoneal abscess rupture. He underwent image-guided laparoscopic irrigation. His postoperative course was favorable, and he was discharged after 27 days. Intraoperatively, a white plaque adhering to the gastric wall was surrounded by a large pus volume and suspected to be ESD-associated. We present this case with a literature review of the association between intraperitoneal abscess and ESD.Objective The aim of this study was to clarify the circadian and seasonal variations in addition to identify sex-based differences in Japanese patients with Takotsubo syndrome (TTS). Methods The authors conducted a retrospective observational study to analyse the differences between the groups based on sex. https://www.selleckchem.com/products/NPI-2358.html Patients The patients were registered out of each institute registry of the acute coronary syndrome (ACS) which contains a total of 10,622 cases in eight academic hospitals in east Japan. Results Data for 344 consecutive TTS (73 male and 271 female) were extracted from each hospital registry. In-hospital mortality was higher in the male group than in the female group (18% vs 7%; p=0.005). With regard to the circadian variations in all study patients, TTS events occurred most often in the afternoon and least often during the night. Moreover, the patterns of circadian variations in the female and male groups were the same as that of all study patients. TTS events occurred most frequently in the autumn and least often in the spring in the whole study cohort. Moreover, the seasonal variation in the female group showed the same pattern as that of the whole cohort. However, there were no significant seasonal differences in the incidence of TTS in the male group. Conclusion In a multicenter study in Japan, seasonal variation was observed in the female group but not in the male group. Circadian variation was observed in both groups. These results suggested that the pathogenesis and clinical features of TTS might therefore differ according to sex.Anthracyclines have cardiotoxic side effects. Cardioprotective drugs such as angiotensin-converting enzyme inhibitors and beta-blockers are therefore recommended for patients with anthracycline-induced cardiomyopathy. We herein present a 54-year-old woman with recurrent metastatic breast cancer who developed heart failure (HF) with a left ventricular ejection fraction (LVEF) of 22% after undergoing epirubicin chemotherapy. However, her HF symptoms and low LVEF persisted despite 5 months of cardioprotective therapy and additional oral pimobendan. Pimobendan was discontinued because of ventricular arrhythmia and hypotension. After the start of low-dose (0.125 mg daily) digoxin, her LVEF increased to 42%, and her HF symptoms improved with no adverse events.Multifocal enlargements with the alteration of a normal fascicular pattern are considered to be sonographic peripheral nerve features in multifocal acquired demyelinating sensory and motor neuropathy (MADSAM), a subtype of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). We herein present the case of an 18-year-old patient with MADSAM in whom intensive sonological assessments revealed multifocal nerve enlargement within clinically affected cranial nerves. Our case demonstrated that, if systematically investigated with ultrasound, morphological changes similar to those in the peripheral nerves may be detected in a large proportion of clinically affected cranial nerves in MADSAM, boosting the future applications of cranial nerve ultrasound in CIDP.Exposure to quinolones is known to be an independent risk factor for aortic dissection; however, the association with vertebral artery dissection remains unclear. We report two cases of vertebral artery dissection that occurred 4 and 8 days after exposure to levofloxacin, respectively. Both patients had risk factors for vertebral artery dissection, and quinolone use could have been avoided. These two cases indicate that quinolone exposure can be a risk factor for vertebral artery dissection. Considering the possible mechanism, it is better to avoid the prescription of quinolones to patients who have insufficient connective tissues to avoid vertebral artery dissection.