Citations

AbstractAn early colorectal carcinoma is TNM stage T1NxMx. Most early carcinomas of the colon and rectum can be treated by adequate local excision, such as colonoscopic polypectomy and per‐anal excision. If there are adverse risk factors, especially poorly differentiated carcinoma, lymphovascular invasion, or incomplete excision, a radical resection is indicated if there is no contraindication. In the case of a low rectal carcinoma, adjuvant chemoradiation should be considered. Recently a new classification has been developed: sm1 is invasion to the upper one‐third of the submucosa, sm2 is invasion to the middle one‐third, and sm3 is invasion to the lower one‐third. Lesions of sm1 and sm2 have a low risk of local recurrence and lymph node metastasis; local excision is adequate. The sm3 lesions and sm2 flat and depressed types have a high risk of local recurrence and lymph node metastasis; further treatment is indicated.

Abstract. Pulmonary arteriovenous fistulas (PAVFs) are rare vascular malformations of the lung. There is a strong association with Rendu‐Osler‐Weber disease. Although most patients are asymptomatic, PAVFs can cause dyspnea from a right‐to‐left shunt. They can also bleed and result in hemoptysis and hemothorax. Because of paradoxical emboli, various central nervous system complications have been described including stroke, and brain abscess. Currently, spiral computed tomography offers the most practical method for establishing the presence of PAVFs. Most patients should be treated. Therapeutic options include angiographic embolization with metal coils or balloon occlusion and surgical excision. Angiographic treatment has become the mainstay of therapy for most patients during the last decade. It is less invasive and can be repeated easily. Surgery, which usually consists of a conservative lung resection, is associated with low morbidity and a low recurrence rate. Both therapeutic approaches are discussed. The Mayo Clinic surgical experience of the last 20 years for PAVFs is presented.

Abstract A review of the literature reveals that surgical treatment of coracoid impingement has heretofore involved open surgical decompression in all cases. Previously unreported, the authors describe an arthroscopic technique to treat coracoid impingement syndrome, demonstrate its feasibility, and cover the specific technical points that facilitate this procedure.