PATHOLOGY REPORT:
TISSUES: Sigmoid colon - SIGMOID/RECTAL DISSECTION
GROSS DESCRIPTION:
Received unfixed labeled sigmoid is a 32 cm length of colon with a diameteer of 5 cm and attached pericolonic adipose tissue with a stich marking the proximal end. Opening reveals a circumferential 4 x 3 cm ulcerated tumor which is 4 cm from the distal margin. In addition, 2.0 cm from the tumor is a 3 x 1.5 cm polypoid mass which is 1 cm from the distal margin. Representative sections are submitted as follows:
MICROSCOPIC DESCRIPTION:
Specimen: Rectosigmoid / Histologic Type: Both adenocarcinoma / Histologic Grade: Both low grade (moderately differentiated) / Microscopic Tumor Extension: Larger tumor into pericolonic fat; smaller tumor into muscularis propria.
Margins: Free of tumor / Lympho-Vascular Invasion: None seen / Perineural Invasion: None seen / Tumor Deposits: Not present / Lymph nodes: Nineteen benign nodes.
FINAL DIAGNOSIS:
Colon, rectosigmoid, resection - Adenocarcinoma, pT3 N0.