BACKGROUND Malignant pleural effusion (MPE) can occur during the progression of various cancers. However, factors, such as the incidence of MPE associated with different types of cancers and its potential for diagnosing previously undetected cancers, are unknown. Moreover, MPE may accompany potentially curable cancers or those with a favorable survival… (More)
BACKGROUND Bevacizumab requires some unique eligibility criteria, such as absence of hemoptysis and major blood vessel invasion by the tumor. The prognostic impact of these bevacizumab-specific criteria has not been evaluated. METHODS Patients with stage IIIB/IV, non-squamous non-small cell lung cancer who started chemotherapy before the approval of… (More)
Small-cell lung cancer with epidermal growth factor receptor (EGFR) gene mutation typically manifests as a transformation occurring after EGFR tyrosine kinase inhibitor therapy for adenocarcinoma with EGFR mutation, whereas primary small-cell lung cancer showing EGFR mutation is extremely rare. Second biopsy of EGFR-mutated tumor has been broadly recognized… (More)
Mantle cell lymphoma (MCL) is a subtype of B-cell non-Hodgkin's lymphoma. Most cases of MCL have extranodal involvement at the time of the initial diagnosis; however, endobronchial involvement is rare. An 87-year-old man was referred to our hospital because of dyspnea on exertion. A chest CT revealed diffuse irregular wall thickening of the trachea and… (More)
Pegfilgrastim is a long-acting granulocyte colony-stimulating factor formulation that has been approved for the prevention of febrile neutropenia. We herein report a case of interstitial pneumonia following administration of pegfilgrastim. A 65-year-old man with stage IV small-cell lung cancer was treated with carboplatin and etoposide as third-line… (More)
BACKGROUND Repetitive genotyping is useful to assess the genetic evolution of non-small-cell lung cancer (NSCLC) during treatment, but the need for sampling by biopsy is a major obstacle. Digital polymerase chain reaction (PCR) is a promising procedure for the detection of mutant alleles in plasma of cancer patients. METHODS This prospective study… (More)
Localized nodular pulmonary amyloidosis is rare. However, the disease should be considered in the differential diagnosis of multiple lung nodules.
A 38-year-old woman with encephalitis presented no signs of infectious disease or exanthema. After a remission lasting 10 months, she died during a second attack after demonstrating signs of brain stem lesions. Histological examination revealed lesions, mainly in the brain stem and characterized by intense necrosis, moderate degrees of inflammation, and… (More)