Figure 3From: Isolated adult hypoganglionosis presenting as sigmoid volvulus: a case report Immunohistochemical staining of biopsy showing hypertrophied nerve bundles and occasional ganglion cells. (A) Hematoxylin and eosin stain; (B) calretinin stain; (C) S100 stain; (D) neurofilament stain.Back to article page