Asymptomatic Ileal Neuroendocrine “Carcinoid” Tumor Incidentally Diagnosed on Colorectal Cancer Screening Colonoscopy: Does Routine TI Intubation Matter?

Table 2

Colonoscopy and histopathology images.

Patient	Endoscopic image	Histopathology
Case 1	20 mm terminal ileal lesion	H&E 100x well-differentiated NET	100x chromogranin positive	100x Ki-67 proliferation index <2%
Case 2	11 mm terminal ileal lesion	H&E 100x well-differentiated NET	100x chromogranin positive	100x Ki-67 proliferation index <2%
Case 3	15 mm terminal ileal lesion	H&E 100x transmurally invasive NET	100x chromogranin positive	2; 100x Ki-67 proliferation index <2%
Case 4	20 mm terminal ileal lesion	4; H&E 100x well-differentiated NET	5; 100x chromogranin positive	6; 100x Ki-67 proliferation index <2%
Case 5	10 mm terminal ileal lesion	H&E 100x low-grade NET 100x	9; Chromogranin positive	100x Ki-67 proliferation index <2%
Case 6	10 mm terminal ileal lesion	H&E 100x well-differentiated NET	3; 100x chromogranin positive 100x	4; Ki-67 proliferation index <2%
Case 7	17 mm terminal ileal lesion	H&E 100x Insular-type NET	7; No atypia 100x chromogranin positive	8; 100x Ki-67 proliferation index <2%
Case 8	6 mm terminal ileal lesion	H&E 100x well-differentiated NET	1; 100x chromogranin positive	2; 100x Ki-67 proliferation index <2%
Case 9	15 mm terminal ileal lesion	H&E 100x Transmurally invasive NET	5; 100x chromogranin positive	6; 100x Ki-67 proliferation index <2%