[A case of sarcoidosis following chemotherapy for follicular lymphoma].

A 53-year-old man, who had received salvage chemotherapy for follicular lymphoma, complained of fever and dry cough. High-resolution computed tomography of the chest showed bilateral diffuse ground-glass opacities with weak F18-fluorodeoxyglucose uptake on positron emission tomography. Transbronchial lung biopsy specimens revealed noncaseating epithelioid cell granulomas.

[A case of tumor microembolism diagnosed by perfusion scan and transbronchial lung biopsy].

A 70-year-old woman with breast cancer treated with hormonal therapy had progressive shortness of breath for one month. Chest radiograph and computed tomography showed mild interstitial changes, but could not account for her respiratory failure. Lymphangitic carcinomatosis, drug-induced pneumonitis, idiopathic interstitial pneumonitis, opportunistic infection, and pulmonary edema were considered in the differential diagnosis of the CT findings.

Ultrastructural study of the morphogenesis of human herpesvirus 6 type B in human T-lymphotropic virus type I-producing lymphoid cells.

A few studies of the morphogenesis of human herpesvirus (HHV) 6 type A and B (HHV-6A, -6B) have been performed using neurogenic, lymphoid, or epithelial cells. When human MT-4 T-lymphotropic virus type I (HTLV-I)-producing lymphoid cells were coinfected with HHV-6B in vitro, viral-specific proteins were clearly detected. We therefore attempted to detect virus particles at the ultrastructural level, focusing on the morphogenesis of such particles.