Internal medicine
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A 72-year-old man without any symptoms was referred to our hospital. Esophagogastroduodenoscopy revealed an elevated esophageal lesion that was covered with normal mucosa. The examination of biopsy specimens from the lesion revealed amyloid light-chain (AL) (λ) type amyloid deposits, but there were no amyloid deposits elsewhere in the gastrointestinal tract. ⋯ Thus, this case was diagnosed as a localized esophageal amyloidosis. As the clinical outcome of localized amyloidosis is favorable, this case was scheduled for close follow-up. Localized amyloidosis should be considered in the differential diagnosis of esophageal submucosal tumors.
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Acute appendicitis is an important differential diagnosis in patients with right lower quadrant pain during pregnancy. Endometriosis, a hormone-related pathology, is another possibility. ⋯ We report the case of a 35-year-old woman in her 8th month of pregnancy who presented with impending appendiceal rupture due to deciduosis of the appendix, a progesterone-related condition, during pregnancy. This case suggests that deciduosis/stromal endometriosis should be considered as a differential diagnosis of acute abdomen during pregnancy, even if the patient is asymptomatic before pregnancy.
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Most cases of mediastinal abscess occur as a postoperative complication of a thoracic surgical procedure or following trauma. The most common causative microorganism is Staphylococcus aureus, but it can be rarely caused by unusual microorganisms, such as Gemella species. ⋯ He was successfully treated with penicillin antibiotic for eight weeks. To our knowledge, this is the first case report of mediastinal abscess caused by G. bergeri.
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Case Reports
Systemic Lupus Erythematosus Complicated with Listeria Monocytogenes Infection in a Pregnant Woman.
A 41-year-old woman with systemic lupus erythematosus (SLE) was admitted to our hospital due to a fever at 35 weeks of pregnancy. Laboratory testing revealed a low platelet count and elevated liver enzymes. Emergency Caesarean section was performed due to the risk of SLE exacerbation or hemolytic anemia, elevated liver enzyme, and low platelet count syndrome. ⋯ She was treated with ampicillin and eventually recovered, and the neonate did not have any complications. Pregnant women with SLE are at risk of complications. Listeriosis should be monitored for and, if found, managed appropriately.
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Case Reports
Utility of Basophil Activation Test in a Case of Daisaikoto- and Yokukansan-induced Lung Injury.
Drug-induced lung injury is defined as a respiratory disorder. The usefulness of the basophil activation test (BAT) for drug allergy-related cases was recently reported. The patient was an 82-year-old woman who had been taking Daisaikoto and Yokukansan (herbal medicines) 3 months before developing dry cough. ⋯ Finally, a BAT was positive for both medications. Based on the findings, the patient was diagnosed with Daisaikoto- and Yokukansan-induced lung injury. The current case suggests that the BAT may be useful for the diagnosis of drug-induced lung injury.