13 research outputs found

    Acute eosinophilic pneumonia caused by cigarette smoking

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    金沢大学医薬保健研究域医学系It has been suggested that acute eosinophilic pneumonia (AEP) is associated with cigarette smoking because in Japan, the patients with AEP are young and have a high incidence of short-term smoking history. However, there has been no direct evidence to support that cigarette smoke causes AEP. Herein is reported the first case showing the direct evidence and a long-term clinical course of cigarette smoking-induced AEP, in which tolerance to repeated resumption of smoking cigarettes might have occurred. We should pay attention to the history of cigarette smoking in seeing patients with AEP, especially in young patients

    Small-Sized, Flat-Type Invasive Branch Duct Intraductal Papillary Mucinous Neoplasm: A Case Report

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    Recent improvements in diagnostic modalities are increasing the frequency of detection of small-sized branch duct intraductal papillary mucinous neoplasms (BD-IPMNs). International consensus guidelines for IPMN recommend surveillance without immediate resection for small-sized (<3 cm) BD-IPMNs without malignant features on imaging. Our patient is the first to have undergone resection of a small-sized BD-IPMN containing invasive cancer, but without malignant features on imaging. We herein report a case involving a 70-year-old man with a small cystic lesion in the pancreas head detected by health screening ultrasonography. Detailed examination revealed that the cystic lesion was a BD-IPMN measuring about 2 cm, with no malignant features. However, cytological examination of the pancreatic juice showed atypical cells with high-grade dysplasia storing intracytoplasmic mucin, indicating malignant BD-IPMN. Pathological examination of the resected specimen showed a BD-IPMN measuring 16 mm with an associated invasive carcinoma that invaded the pancreatic parenchyma over a distance of 11 mm. In this patient, invasive cancer was present within a small BD-IPMN with no high-risk stigmata on imaging. Cytological examination of the pancreatic juice allowed for the detection of pancreatic cancer in such a small-sized IPMN. Although routine endoscopic retrograde cholangiopancreatography (ERCP) with cytology is not recommended in all patients with BD-IPMNs, ERCP may contribute to the detection of small pancreatic cancers in select cases. Accumulation of cases of pancreatic cancer within small BD-IPMNs may help establish the indications for ERCP with cytological examination for the purpose of early detection of small pancreatic cancer
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