163P - Modernization of radiological diagnostic methods of cancer of anal canal (163P)

Date 18 November 2017
Event ESMO Asia 2017 Congress
Session Poster lunch
Topics Anal Cancer
Gastrointestinal Cancers
Imaging, Diagnosis and Staging
Presenter Alexander Ososkov
Citation Annals of Oncology (2017) 28 (suppl_10): x42-x56. 10.1093/annonc/mdx659
Authors K. Matyusupov1, A. Ososkov1, S. Abdujapparov2, M. Ismailova1
  • 1Radiology, National Cancer Research Center of Uzbekistan, 100174 - Tashkent/UZ
  • 2Coloproctology, National Cancer Research Center of Uzbekistan, 100174 - Tashkent/UZ



Despite of the accessibility of anal canal for visual instrumental examination, it is difficult to determine the length of the lesion, the relation of the cancer to the surrounding tissues, and the distribution of the dye to the surrounding organs in severe cases. Regular radiological investigational methods of rectum using standard tip may be difficult because of the pain and constriction of the canal. Not infrequently, the standard methods make it impossible to gain enough clinical information.


We propose a new and at the same time simple method of proctography. We have performed anoproctography in 60 patients using an obturator that was designed in our department. All the patients had stage III or stage IV lesions. The method allowed to diagnose the length of the lesion, the state of the canal wall (irregularities and rigidity), the distribution of the dye out of the gut in cases of necrotic lesions.


The obtained images allowed us to identify the stage of the lesion and distribution of the dye to the surrounding organs. In 51 out of 58 patients that underwent the investigation we were able to obtain sufficient data on state of cancer. This was particularly helpful in cases of the dye distribution out of the intestine. These patients underwent colostomy procedures before the investigation. Once these patients had completed the course of antiinflamatory treatment and the dye distribution has been drained, radical operationd had been performed for cancer of anal canal.


The proposed method does not entail using additional and sometimes expensive equipment. The availability of the obturator and the appropriately trained staff makes it possible to diagnose the location of the lesion, which lays the foundation for improvement of the results of the treatment.

Clinical trial identification

Legal entity responsible for the study

Hamid Matyusupov




All authors have declared no conflicts of interest.