Background: Neuropathic pain (NP) and cancer are caused by nerve damage due to cancer or treatments such as chemotherapy, radiotherapy, and surgery, with a prevalence that can reach up to 40%. Causes of neuropathic cancer pain (NCP) include direct nerve invasion or compression by the tumor, as well as neural toxicity associated with treatments. This type of pain is classified into several categories, such as plexopathy, radiculopathy, and peripheral neuropathies. Methods: Medline, Web of Science, Google Scholar, CINAHL, and LILACS databases were searched until October 2024. Two authors independently performed the search, study selection, and data extraction. Methodological quality was analyzed using the Robins-I tool. Results: The main findings of this review indicate that, depending on the cancer type, neuropathic pain will exhibit different characteristics, as well as identifying which types of cancer have a higher probability of presenting neuropathic pain. Additionally, there is a direct relationship whereby the more advanced the cancer, the greater the likelihood of experiencing neuropathic pain. Finally, although chemotherapy is employed as a cancer treatment, this therapy is quite invasive, and one of its adverse effects is that treated patients have a higher probability of developing neuropathic pain. Conclusions: Neuropathic pain is a condition that adversely affects patients with cancer. A detailed understanding of the relationships and triggers that produce this condition is present in only a small percentage of patients with cancer and is necessary to provide better treatment and gain a more comprehensive understanding of the characteristics of neuropathic pain. The objective of this study is to describe the relationship between different types of cancer or various treatments and the presence of NP.
Background: The spleen is the largest secondary immune organ in the body. Knowledge regarding the normal splenic vascular anatomy and its anatomical variants is crucial in the medical practice of surgeons and radiologists and is useful for diagnostic evaluations and the guidance of various surgical procedures. Hence, in this research, we aim to characterize the behavior of the lineal or splenic artery in humans from an anatomoclinical point of view. Methods: A systematic search was carried out in electronic databases to compile the available literature on the research subject. Searches were undertaken in the following databases: Medline, Scielo, Wos, Cinahl, Scopus, and Google Scholar. The search terms were “Splenic artery”, “Splenic vascularization”, “Anatomical variations’’, “Splenic organ”, and “Clinical anatomy”. Results: From the 35 studies included in this review, clinical correlations of anatomical variations in the splenic artery with surgical procedures in the abdominal region were reported in 8 studies. These correlations are mainly associated with surgical procedures for the pancreas, liver, stomach, and bile ducts through imaging of the spleen. To verify our conclusions, the risk of bias of the anatomical studies was measured using the AQUA checklist. Conclusions: Recognition of the usual anatomy and anatomical variants of the splenic artery is crucial for both morphology professionals and clinicians addressing the abdominal region and its vascular components. In this review, we determined that the splenic artery could present a variation in its origin or entry into the splenic hilum, which could mean that in any abdominal intervention there may be complications if the splenic artery variation is overlooked. More anatomic clinical studies considering this variation in both diagnostic and surgical processes are suggested for further investigations.