A 60-year-old female patient was treated with gamma knife on the left frontal lobe metastatic brain tumor. After 3 months, the tumor and peri-focal edema turned worse due to radiation necrosis. Despite increasing doses of steroid administration, the deterioration lasted for 6 months. The symptoms and brain edema did not improve for over a year, but we decided to observe the patient without bevacizumab. We performed Methionine-PET to diagnose radiation necrosis of the brain, and confirmed absence of hot spots. The steroid therapy continued and added saireito 9 g/day, because we thought brain edema was concerned with fluid retention. After 9 months, head MRI showed improvements of the brain edema. Saireito may help improve brain edema due to radiation necrosis.

BACKGROUND:Splenectomy in patients with liver cirrhosis (LC) is expected to become more common owing to its efficacy on portal hemodynamics. In this report we describe an alarming case of group B streptococcus (GBS) infection after splenectomy in a patient with LC. METHODS:A 72-year-old woman with a history of LC was admitted to our emergency department because of respiratory failure. The patient had received left lateral segmentectomy of the liver and splenectomy three months before admission. Pulmonary examination revealed significant wheezing during inspiration and expiration, but no crackles and stridor. Chest radiography and CT showed no infiltrates. A presumptive diagnosis of bronchial asthma caused by upper respiratory infection was made. Four days after admission, GBS infection was confirmed by blood culture and penicillin G was administered. Antibiotics were given intravenously for a total of 12 days. RESULTS:The patient was discharged on the 12th day after admission. CONCLUSIONS:Although efficacy of splenectomy in patients with LC has been reported, immune status should be evaluated for a longer period. Patients who have undergone splenectomy are highly susceptible to bacteria; moreover, LC itself is an independent risk factor for mortality in patients with sepsis. Since prophylaxis against GBS has not been established, immediate action should be taken. Emergency physicians should be aware of invasive GBS infection in the context of the critical risk factors related to splenectomy and LC, particularly the expected increase of splenectomy performed in LC patients.