Background: There are many circumstances in clinical practice in which it is helpful to have
a definitive diagnosis of melanoma before subjecting a patient to mutilating surgery …

OBJECTIVES: Endoscopic ultrasound (EUS) fine needle aspiration (FNA) can result in false-
positive cytology and can also cause needle tract seeding. Our goal was to evaluate a …

Background: It has long been suspected that mechanical influences may enhance the
release of viable colorectal cancer cells into the circulation. The objective of this study was to …

Background Endoscopic submucosal dissection (ESD) involves dissection of tumors and
manipulation of them in an exposed condition for prolonged periods. A large number of …

Implantation metastasis from a colorectal cancer into a perianal fistula is very rare. Such
lesions are commonly mistaken as benign perianal abscesses or fistulas and diagnosed …

Discussion The implantation of malignant cells into benign tissues during open or
laparoscopic bowel resection for colorectal cancer remains a serious concern. The sequelae …

It was estimated that 70% of patients with colorectal cancer were found to have viable
exfoliated malignant cells in adjacent intestinal lumen. Exfoliated malignant cells had been …

Adenocarcinoma of the Sigmoid Colon Seeding a Chronic Anal Fistula Page 1
Adenocarcinoma of the Sigmoid Colon Seeding a Chronic Anal Fistula Report of a Case …

Purpose The purpose of this study was to evaluate the clinical features, pathology, and
etiology of adenocarcinoma in patients with anal fistulae. Methods We identified seven …

Background Complete surgical excision is the preferred biopsy type for suspicious
melanocytic lesions. However, partial biopsy is sometimes used in special situations …