Technique for detection of nonpolypoid lesions
Monday 27 October 2008, Branislav Kunčak, M. D.
Subtle features of nonpolypoid colorectal lesions make them difficult to detect.
Endosopic diagnosis of nonpolypoid colorectal lesions involves of two distinct steps:
1. Detection of suspected area.
Number of changes of the mucosa may signify the presence of nonpolypoid neplasm: colour change (more red, more pale), deformation of the mucosal surface (elevation, depression), altered vascular network or spots of spontaneous bleeding.
2. Characterisation of the lesion, usually requiring chromoscopy. Size, type and position of the lesion is determined.
Bigger image, Endoscopy
Fig. 1
Detection of the suspected area (slightly elevated and more red mucosa) of the ceacal mucosa.
Bigger image, Endoscopy
Fig. 2
The area was sprayed with 0,5% indigocarmine solution. Two 0 IIa lesions according to Paris classification. Histologically tubular adenomas with low-grade mucosa.
