Ultrastructural studies on the anal canal epithelium in the mouse, with special reference to the keratinizing process.
[Okajimas Folia Anat Jpn. 1996]
Malignant melanoma of the anal canal El melanoma maligno,The clinical and pathological featuEl melanoma malignores of 15 cases of malignant melanoma of the anal caMalignant melanoma of the anal canal El melanoma malignonal are described.
[Histopathology. 2007]
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Poorly differentiated tumours of the anal canal: a diagnostic strategy for the surgical pathologist.
It would appear from this study that these tumours arise from squamous epithelium lining that part of the anal canal at or just above the line of the anal valves.
