The ornamental design for a tissuecellblock for cancer detection, as shown and described.
FIG. 1 is a top perspective view of a tissue cell block for cancer detection showing our new design;
FIG. 2 is a top plan view thereof, the bottom plan view being a mirror image thereof; and,
FIG. 3 is a side view thereof.
Area depicted in dense stippling represents a color and cell type different than area depicted in spare stippling. Area depicted in spare stippling represents a color on an opaque background.