Characterization of tumor-associated B-cell subsets in patients with colorectal cancer.

Purpose: A precise understanding of the mechanisms by which human immune cell subsets affect tumor biology will be critical for successful treatment of cancer using immunotherapeutic approaches. Recent evidence suggests that B cells can both promote and inhibit the development and progression of tumors. The aim of this study was to characterize the composition of the B-cell infiltrates in colorectal cancers (CRC) in order to gain further insight into the role of B cells in CRC.

[Localization of primary small cell carcinoma with liver metastasis: a rare combination of colonic adenocarcinoma and undifferentiated small cell carcinoma].

Neuroendocrine or small cell cancer (SCC) is a rare tumor, accounting for less than 1% of all colorectal cancers. There is a high rate of metastasis in SCC. Overlying adenomas are commonly present in colorectal SCC.

[Extramedullary plasmocytoma of the bronchial system].

We present a case of primary plasmocytoma of the left upper bronchus. Occlusion led to atelectasis of the left upper lobe and subsequent poststenotic pneumonia. Therapy consisted of local excision of the bronchus and postoperative radio-therapy.

[Fatal outcome factors of intestinal infarct of primary vascular origin].

Despite diagnostic and therapeutic advances, mesenteric vascular occlusion with intestinal infarction is often fatal. Parameters determining the high mortality are seldom discussed in the literature. By univariate statistical analysis we correlated the therapeutic outcome of our patients to 20 parameters.