HISTOLOGY REPORT
Clinical Details: Rectosigmoid mass
Site of tumour - Sigmoid colon
Maximum tumour diameter - 60 mm
Distance to nearest longitudinal resection margin - 50 mm (distal)
Tumour perforation present? - None
Relation to peritoneal reflection - Above
CRM has been inked orange. Tumour appears to invade the muscularis macroscopically and there are diverticula seen
Tumour type - Adenocarcinoma
Differentiation - Moderately differentiated
Extent of spread - Beyond muscularis propria
Distance beyond MP - 1.5 mm
Serosal involvement - None
Lymphovascular invasion - None apparent
Perineural invasion - None apparent
No. of lymph nodes - 25
No. of involved nodes - None
Non-nodal tumour deposits (N1c) - None
Background abnormalities - diverticular disease
Additional description: There is marked inflammation of the surrounding stroma with foci of abscess and extensive fibrosis. Some abscess is seen adjacent to the tumour, but this does not extend to the serosal surface and therefore the staging remains T3. Diverticular disease was seen macroscopically, which is likely to have contributed to fibrosis and inflammation.
Margins
Proximal - Well clear
Distal - Well clear
CRM - Well clear
Conclusion: Sigmoid colon - Moderately differentiated adenocarcinoma TNM 8 - pT3 pN0 (0/25) pMx R0 V0