< GROSS >
Specimens received in formalin are two parts.
They are 1 & 1 pieces of polypoid tissue,
measuring 1.3cm & 0.5cm in diameter.
Entirely embedded in A and B ( A;25cm Av, B;20cm Av )

< DIAGNOSIS >
Colon, 25cm from anal verge, colonoscopic polypectomy:
Carcinoma in an adenoma
Adenocarcinom, well-differentiated
1.size:0.7cm
2.depth of invasion: invades lamina propria
3. resection margin: free from carcinoma
4.pre-existing adenoma:
Tubulovillous adenoma with low to high grade dysplasia
1)size:1.2cm
2)resection margin:free from adenoma

Colon, 20cm from anal verge, colonoscopic polypectomy;
Tubulovillous adenoma with high grade dysplasia
with involved margin as low grade dysplasia

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