Strictures, diaphragms, erosions or ulcerations of ischemic type in the colon should always prompt consideration of nonsteroidal anti-inflammatory drug-induced lesions.

Aim: To investigate whether NSAIDs/ASA lesions in the colon can histologically be diagnosed on the basis of ischemic necrosis similar to biopsy-based diagnosis of NSAIDs/ASA-induced erosions and ulcers of the stomach.

Methods: In the period between 1997 and 2002, we investigated biopsy materials obtained from 611 patients (415 women, 196 men, average age 60.5 years) with endoscopic focal erosions, ulcerations, strictures or diaphragms in the colon.

T1 breast cancer: identification of patients at low risk of axillary lymph node metastases.

Objective: The status of the axillary lymph nodes is one of the most important prognostic factors in patients with breast cancer. A panel of molecular markers of tumor aggressiveness in addition to conventional clinical and histopathologic features were analyzed in an attempt to identify a subgroup of patients with a low risk of axillary lymph node metastases.

Material And Methods: Data from 358 patients with T1 breast cancer who underwent level I/II axillary lymph node dissection (ALND) were investigated.