Table 1.

Subjective details of transition zone in doughnut biopsies of 10 patients where this was accepted as level of pull-through

Number	Features of minimal transition zone in doughnut biopsy where transition zone pull-through was performed
1	CG with 1 thick nerve
2	CG with some thick nerves
3	CG with 1 thick nerve
4	CG with thick nerves in 1 quadrant
5	CG with occasional thickened nerves
6	CG but still in keeping with transitional area
7	CG with 1 thick nerve
8	CG with 1 thick nerve
9**	CG with 2 thick nerves
10**	CG with 1 thick nerve

CG: Circumferential ganglionosis, **Second, more proximal doughnuts