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JPTM > Volume 44(2); 2010 > Article
The Korean Journal of Pathology 2010;44(2): 162-172.
doi: https://doi.org/10.4132/KoreanJPathol.2010.44.2.162
Histopathological Evaluation of Pediatric Intestinal Pseudo-Obstruction: Quantitative Morphometric Analysis of Pathological Changes in the Enteric Nervous System.
Hyung Kyung Kim, Harin Cheong, Hanna Kang, Ji Yoon Bae, Dong Eun Song, Min Sun Cho, Sun Hee Sung, Woon Sup Han, Heasoo Koo
Department of Pathology, Ewha Medical Research Institute, Ewha Womans University School of Medicine, Seoul, Korea. heasoo@ewha.ac.kr
ABSTRACT
BACKGROUND: This study was done to obtain comprehensive data on changes in the structural components of the enteric nervous system in pediatric patients with intestinal pseudo-obstruction (IPO). We evaluated routinely processed, in formalin-fixed tissues by quantitative morphometric analysis. In addition, we used formalin-fixed tissue to explore the possibility of using previously proposed diagnostic criteria to evaluate frozen serial sections for intestinal neuronal dysplasia (IND) type B and hypoganglionosis. METHODS: We analyzed data for 19 IPO cases. Morphometric analysis for quantification of ganglia and ganglion cells (GCs) was done for the myentric and the submucous plexus. In addition, we determined the presence of immature GCs and the distribution of nerve fibers and interstitial cells of Cajal (ICC). RESULTS: Nine patients showed combined hypoganglionosis, IND, and decreased ICC; others showed various combinations of these. Several morphometric factors were significantly different between patient groups as well as being different than the control group. CONCLUSIONS: Our pediatric IPO cases showed extensive overlapping of pathological findings. And the findings suggest the utility of using previously proposed morphometrically measured factors in multiple frozen sections as diagnostic criteria for IND type B and hypoganglionosis in formalin-fixed tissue.
Key Words: Intestinal pseudo-obstruction; Morphometric analysis; Quantitative
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