Table 1.

Macroscopic and microscopic classification according to Zuhlke

Macroscopic classification according to Zuhlke
I.	Flimsy and easy to separate by blunt dissection.
II.	Blunt dissection possible, partly sharp dissection necessary, beginning vascularization.
III.	Lysis possible by sharp dissection only, clear vascularization.
IV.	Lysis possible by sharp dissection only, organs strongly attached with severe adhesions, damage of organs hardly preventable.
Microscopic (histological) classification according to Zuhlke
I	Loose connective tissue; cell rich, old and new fibrin, fine reticulin fibers.
II	Connective tissue with cells and capillaries, few collagen fibers.
III	Connective tissue more firm, fewer cells, more vessels, few elastic and smooth muscle fibers.
IV	Old firm granulation tissue, cell poor, serosal layers hardly distinguishable.