Fig. 4From: Rare presentation and retrograde diagnosis of total colonic aganglionosis in a female infant: a case reportIn this figure we can see magnified rectal biopsies stained for calretinin. The pictures are magnified at ×8.9, ×9.6, ×21, ×22.6 for A, B, C, and D, respectively. We can see absence of ganglion staining, meaning that calretinin-immunoreactive mucosal innervation is absentBack to article page