TY - JOUR T1 - Internal sphincter and haemorrhoids: a pathological study. JF - Journal of Clinical Pathology JO - J Clin Pathol SP - 268 LP - 270 DO - 10.1136/jcp.31.3.268 VL - 31 IS - 3 AU - M T Haqqani AU - B D Hancock Y1 - 1978/03/01 UR - http://jcp.bmj.com/content/31/3/268.abstract N2 - Histological examination of the lower margin of the internal sphincter has demonstrated an increased amount of fibrous tissue in patients with haemorrhoids compared with controls. This finding may be of relevance to the treatment of haemorrhoids by maximal anal dilatation. ER -