Content » Vol 66, Issue 3

Tubuloreticular structures in Kaposi´s sarcoma: a comparison of the classical and AIDS-associated forms

Konrad K, Schenk P, Rappersberger K.
DOI: 10.2340/0001555566207212


The ultrastructural morphology of both the classical and the AIDS-associated forms of Kaposi´s sarcoma was examined electron-microscopically. Tubuloreticular structures were found only in the AIDS-associated form of Kaposi´s sarcoma, and not in the classical variant of the tumor. Moreover, the tubuloreticular structures, 20-30 nm in diameter, were present in very high numbers and in two different forms: the loosely intertwined tubuli, which were clearly predominant; and those forming a more compact pattern. These findings suggest that the presence of tubuloreticular structures may well be an ultrastructural marker for diagnosing AIDS and AIDS-associated disorders.


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