1986 Volume 27 Issue 3 Pages 432-436
The virological and immunological findings of adult T cell leukemia (ATL) have been accumulated markedly, but the ultrastructural studies of ATL cells have not been done so many. We found two types of intracytoplasmic structures, namely, striated strip structure (SSS) and tubuloreticular structure (TRS), in the cells of one case of ATL. The former is not known well up to now. SSS had a slightly curved strip form of 38 nm thick, 60 nm wide and about 900 nm long, and had striated substructures. The incidence of SSS and TRS were 1.5 and 3.0% respectively. Ultrastructural studies of other five cases of ATL revealed TRS in two cases, but SSS in none. This report is the second case of SSS in ATL, SSS has not been reported in the diseases other than ATL, so SSS may be a specific structure to ATL.
