The incidence of fungal infections of burn wounds is increasing because of the dramatic improvement in antibacterial chemotherapy and burn wound care. Species of Fusarium, common soil fungi and plant pathogens, are rarely isolated from burn wounds, and invasive disease due to these organisms is also rare. Therefore, a case of burn wound infection with dissemination due to F. oxysporum is reported; three other cases of burn wound colonization by Fusarium sp. are also reported. The literature on fungal infections of burn wounds is reviewed, and the importance of combined histologic and mycologic studies in the evaluation of such wounds is discussed.
A patient with a primary oral epidermoid carcinoma with presumed neck metastasis is presented who at operation was found to have a cervical mucoepidermoid carcinoma arising in the wall of a benign cyst. The case for considering this tumor a primary branchioma of mucoepidermoid type is presented, and the criteria for making the diagnosis of branchiogenic carcinoma are discussed.
To investigate the possible relationships between immunologic phenotype, histologic subtype, and clinical features in diffuse, large cell lymphoma (DLCL), a computerized registry has been established for the prospective collection of immunologic, histologic, and clinical data. A combination of immunofluorescence and immunoperoxidase technics on single-cell suspensions, frozen tissues, and B5-fixed, paraffin-embedded specimens was used to study the first 33 biopsies. A definitive phenotype was established in all but two cases. Monoclonal antibody reagents reactive in B5-fixed, paraffin-embedded tissue sections helped assign a B-cell lineage in four cases lacking surface or cytoplasmic immunoglobulin, monoclonal light chains, and T-cell markers. There was no statistically significant association between the immunologic phenotype (whether mature B or not) and any clinical or histologic parameter, including response to therapy and survival. Bone marrow involvement was found to be associated significantly with both vague nodularity and a cleaved cell subtype. Through the use of a multifaceted approach to the immunophenotypic analysis of the DLCLs, a distinct lineage and stage of differentiation could be assigned to most biopsy specimens. That such analysis has significant clinical implications for patients with DLCL could not be demonstrated in this series.
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