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We observe that many of the 2-complexes constructed byFreedman-Krushkal-Teichner in their paper on the incompleteness of the vanKampen embedding obstruction can actually be PL immersed in $\mathbb{R}^4$ insuch a way that the images of the interiors of distinct cells are disjoint. Inother words, they PL almost-embed in $\mathbb{R}^4$ with singularitiesoccurring only as self intersections of some 2-cells. This note is written in(not necessarily modern) German.

Eine Bemerkung zu einigen $2$-dimensionalen Komplexen, die im $\mathbb{R}^4$ fast-eingebettet werden k\"onnen