Comparative Analysis between Multilevel Sectioning with Conventional Haematoxylin and Eosin Staining and Immunohistochemistry for Detecting Nodal Micrometastases with Stage I and II Colorectal Cancers

Wong, Yin-Ping; Shah, Shamsul Azhar; Shaari, Noorsajida; Mohamad Esa, Mohd Shafbari; Sagap, Ismail; Isa, Nurismah Md

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저자정보: Wong, Yin-Ping (Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre) Shah, Shamsul Azhar (Department of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre) Shaari, Noorsajida (Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre) Mohamad Esa, Mohd Shafbari (Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre) Sagap, Ismail (Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre) Isa, Nurismah Md (Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre)

저널정보: 아시아태평양암예방학회 Asian Pacific journal of cancer prevention : APJCP Asian Pacific journal of cancer prevention : APJCP 제15권 제4호

발행연도: 2014.1

수록면: 1,725 - 1,730 (6page)

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Management of patients with stage II colorectal carcinomas remains challenging as 20 - 30% of them will develop recurrence. It is postulated that these patients may harbour nodal micrometastases which are imperceptible by routine histopathological evaluation. The aims of our study were to evaluate (1) the feasibility of multilevel sectioning method utilizing haematoxylin and eosin stain and immunohistochemistry technique with cytokeratin AE1/AE3, in detecting micrometastases in histologically-negative lymph nodes, and (2) correlation between nodal micrometastases with clinicopathological parameters. Sixty two stage I and II cases with a total of 635 lymph nodes were reviewed. Five-level haematoxylin and eosin staining and one-level cytokeratin AE1/AE3 immunostaining were performed on all lymph nodes retrieved. The findings were correlated with clinicopathological parameters. Two (3.2%) lymph nodes in two patients (one in each) were found to harbour micrometastases detected by both methods. With cytokeratin AE1/AE3, we successfully identified four (6.5%) patients with isolated tumour cells, but none through the multilevel sectioning method. Nodal micrometastases detected by both multilevel sectioning and immunohistochemistry methods were not associated with larger tumour size, higher depth of invasion, poorer tumour grade, disease recurrence or distant metastasis. We conclude that there is no difference between the two methods in detecting nodal micrometastases. Therefore it is opined that multilevel sectioning is a feasible and yet inexpensive method that may be incorporated into routine practice to detect nodal micrometastases in centres with limited resources.

#Lymph node micrometastasis #prognostic significance #colorectal cancer

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Wong, Yin-Ping

소속기관 Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre