BACKGROUND: Acetylcholinesterase (AchE) histochemistry has been established as an accurate diagnostic tool for Hirschsprung's disease (HD). In addition, calretinin immunohistochemistry is also reported as a reliable and adjunctive method to diagnose HD. We investigated the diagnostic value of combined AchE histochemistry and calretinin immunohistochemistry in rectal suction biopsies from HD and non-HD patients. METHODS: We retrospectively reviewed 99 rectal suction biopsy specimens including 4 repeat biopsies from 95 patients (34 HD and 61 non-HD). Each specimen was evaluated with hematoxylin-eosin, AchE histochemistry, and calretinin immunohistochemistry. RESULTS: Of 95 patients, only 21 (22.1%) showed some ganglion cells. All 61 non-HD cases revealed no abnormal AchE-positive fibers. Of 34 HD patients, 32 exhibited abnormal AchE fibers, but 2 showed no stained fibers. None of the tissues from the HD patients exhibited calretinin immunoreactivity. Test sensitivity and specificity of AchE histochemistry alone were 93.5% and 100.0%, respectively, while calretinin immunohistochemistry were 100.0% and 85.2%, respectively. CONCLUSIONS: AchE histochemistry is a good diagnostic method for HD, if feasible, and a combination of AchE histochemistry and calretinin immunohistochemistry will help increase the accuracy of the diagnosis of HD.
BACKGROUND:Acetylcholinesterase (AchE) histochemistry has been established as an accurate diagnostic tool for Hirschsprung's disease (HD). In addition, calretinin immunohistochemistry is also reported as a reliable and adjunctive method to diagnose HD. We investigated the diagnostic value of combined AchE histochemistry and calretinin immunohistochemistry in rectal suction biopsies from HD and non-HDpatients. METHODS: We retrospectively reviewed 99 rectal suction biopsy specimens including 4 repeat biopsies from 95 patients (34 HD and 61 non-HD). Each specimen was evaluated with hematoxylin-eosin, AchE histochemistry, and calretinin immunohistochemistry. RESULTS: Of 95 patients, only 21 (22.1%) showed some ganglion cells. All 61 non-HD cases revealed no abnormal AchE-positive fibers. Of 34 HDpatients, 32 exhibited abnormal AchE fibers, but 2 showed no stained fibers. None of the tissues from the HDpatients exhibited calretinin immunoreactivity. Test sensitivity and specificity of AchE histochemistry alone were 93.5% and 100.0%, respectively, while calretinin immunohistochemistry were 100.0% and 85.2%, respectively. CONCLUSIONS:AchE histochemistry is a good diagnostic method for HD, if feasible, and a combination of AchE histochemistry and calretinin immunohistochemistry will help increase the accuracy of the diagnosis of HD.
Authors: Kristiina Kyrklund; Cornelius E J Sloots; Ivo de Blaauw; Kristin Bjørnland; Udo Rolle; Duccio Cavalieri; Paola Francalanci; Fabio Fusaro; Annette Lemli; Nicole Schwarzer; Francesco Fascetti-Leon; Nikhil Thapar; Lars Søndergaard Johansen; Dominique Berrebi; Jean-Pierre Hugot; Célia Crétolle; Alice S Brooks; Robert M Hofstra; Tomas Wester; Mikko P Pakarinen Journal: Orphanet J Rare Dis Date: 2020-06-25 Impact factor: 4.123
Authors: L Beltman; J D Windster; J J T H Roelofs; J P van der Voorn; J P M Derikx; R Bakx Journal: Virchows Arch Date: 2022-05-05 Impact factor: 4.535