Anal melanoma [0.03%]
肛门黑色素瘤
Marc Singer,Matthew G Mutch
Marc Singer
Anal melanoma is rare and aggressive malignancy. Patients commonly present with advanced, even metastatic disease. Unlike cutaneous melanoma, anal melanoma has no known risk factors. Surgical excision remains the cornerstone of therapy. The...
Rishindra M Reddy,James W Fleshman
Rishindra M Reddy
Gastrointestinal stromal tumors (GISTs) are rare lesions that constitute the majority of mesenchymal tumors in the gastrointestinal tract. Within the colon and rectum, they represent 0.1% of all cancers. They can present with a variety of s...
Retrorectal tumors [0.03%]
尾侧肿瘤
Sean C Glasgow,David W Dietz
Sean C Glasgow
Primary neoplasms of the retrorectal (presacral) space are very rare. These lesions may be congenital or acquired, benign or malignant. They often arise with subtle clinical symptoms, or they may be found incidentally during evaluation for ...
Bruce W Robb,Matthew G Mutch
Bruce W Robb
Anal cancers are rare tumors with only an expected 4000 new diagnoses in 2005. The majority of these are epidermoid or squamous cell cancers. Despite the rarity of this disease, great advances have been made in its understanding and treatme...
Colorectal lymphoma [0.03%]
结直肠淋巴瘤
Frank J Quayle,Jennifer K Lowney
Frank J Quayle
Lymphoma involving the colon and rectum is rare and can occur either as primary colorectal lymphoma or as a manifestation of systemic disease. Most patients with primary colorectal lymphoma present with abdominal pain, and obstruction is un...
T Philip Chung,Steven R Hunt
T Philip Chung
Carcinoid and neuroendocrine tumors of the colon and rectum arise from the amine precursor uptake and decarboxylation (APUD) cells of the intestine. Carcinoid tumors are most commonly found in the gastrointestinal tract and are located in d...
W Donald Buie,Jo-Anne P Attard
W Donald Buie
Recent evidence suggests that intensive follow-up after curative resection of colorectal cancer is associated with a small but significant improvement in survival. Regimens that employ cross-sectional imaging and carcinoembryonic antigen de...
Michael A Morse
Michael A Morse
Options for the adjuvant therapy of resected stage III colon cancer have expanded beyond the previously well-accepted standard of 5-fluorouracil (5-FU) combined with leucovorin. The Xeloda in Adjuvant Colon Cancer Therapy (X-ACT) study conf...
Ketan R Sheth,Bryan M Clary
Ketan R Sheth
The majority of hepatic metastases in the United States occur in patients with a primary colorectal malignancy. Advances in technology combined with increasing surgeon experience have broadened the treatment options available for hepatic me...
Cytoreductive surgery and perioperative intraperitoneal chemotherapy: a new standard of care for appendiceal mucinous tumors with peritoneal dissemination [0.03%]
腹膜转移性阑尾黏液肿瘤的 cytoreductive手术及围术期腹腔化疗——一个新的治疗标准
Paul H Sugarbaker
Paul H Sugarbaker
In the past, mucinous appendiceal tumors and the pseudomyxoma peritonei syndrome were treated with serial debulking procedures. Some benefit was achieved, but no long-term survivals were seen. A new standard of care that involves the comple...