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@#Primary small bowel tumors have low incidence and contain predominantly solid components, and the lesions are similar and difficult to be detected and distinguished with multislice spiral CT (MSCT) plain scans. In this article we describe contrast-enhanced MSCT technique and imaging characteristics for solid small bowel tumors or small bowel tumors containing predominantly solid components, including the type and use of contrast agents. In contrast-enhanced MSCT, small bowel imaging with CT has the advantages of determining the true extent of intestinal wall lesions, the possible extent of wall penetration, the degree of mesenteric involvement, and distant metastases, as well as easiness to detect and identify the blood supply vessels of small bowel tumors and assessment of the corresponding complications. Contrast-enhanced MSCT has become the best noninvasive imaging technique for the diagnosis, evaluation, and staging of solid small bowel tumors or small bowel tumors containing predominantly solid components. CT texture analysis (CTTA) is a new research hotspot and can be useful for the correct diagnosis of primary small bowel tumors containing predominantly solid components.
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Renal cell carcinoma is one of the most common urinary tract cancers, accounting for 90% of renal cancer cases, and the clear cell renal cell carcinoma is its most common subtype. Because of poor response to conventional anti-cancer treatment, metastasis may occur in the early stage of renal cell carcinoma. The high degree of metastasis of renal cell carcinoma determines the necessity and importance of early diagnosis. Although a lot of researches about renal cell carcinoma have been carried out, its underlying mechanisms still remain unclear. Recent studies have shown that spot-type POZ protein (SPOP) can perform biological functions in a cancer type-specific way. Based on the latest findings, this article reviewed the current research status and prospectives of SPOP in renal cancer cells.