China
Africa
Explore chapters and articles related to this topic
Diseases of the Nails
Published in Ayşe Serap Karadağ, Lawrence Charles Parish, Jordan V. Wang, Roxburgh's Common Skin Diseases, 2022
Definition: Benign tumors (noncancerous tumors) encompass a variety of lesions, including a verruca, distal digital keratoacanthoma, onychomatricoma, pyogenic granuloma, glomus tumor, myxoid cyst, onychopapilloma, exostosis, osteochondroma, enchondroma, and even an epidermoid cyst.
Prediction of Cervical Cancer Using Machine Learning
Published in Meenu Gupta, Rachna Jain, Arun Solanki, Fadi Al-Turjman, Cancer Prediction for Industrial IoT 4.0: A Machine Learning Perspective, 2021
Ashish Kumar, Revant Singh Rai, Mehdi Gheisari
Tumors are further divided into three main categories: benign, premalignant, and malignant. Benign tumors contain cells that are restricted to one area and are not able to spread further throughout the body, but malignant tumors contain cancerous cells that are able to freely move and spread through the lymphatic system or bloodstream in the human body.
Renal Cell Cancer
Published in Pat Price, Karol Sikora, Treatment of Cancer, 2020
Benign renal tumors include papillary and metanephric adenomas, renal oncocytomas, angiomyolipomas, fibromas, and lipomas. Although occasionally symptomatic, these benign tumors are often detected incidentally. Surgical excision or thermal ablation, where appropriate, represents definitive treatment.
Bone tumors effective therapy through functionalized hydrogels: current developments and future expectations
Published in Drug Delivery, 2022
Ruyi Shao, Yeben Wang, Laifeng Li, Yongqiang Dong, Jiayi Zhao, Wenqing Liang
Bone cancer is a type of tumor that develops in the bone and kills normal bone tissues. It might be benign or cancerous. The tumor grows and compresses the normal bone tissues in both cases, however benign tumors lack the ability to metastasize and therefore do not spread to other organs of the body. Benign bone tumors can progress to malignancy and pose a risk if remain untreated. Benign bone tumors include osteochondroma, osteoma, osteoblastoma, fibrous dysplasia, and enchondroma (Hakim et al., 2015). According to the World Health Organization (WHO), bone cancers are classified as primary or secondary tumors (Sisu et al., 2012) and categorized over 45 distinct forms of bone tumors in 2002 based on their findings. Among the many kinds of bone tumors, Osteosarcoma is the most common and major type of bone tumor, accounting for 31.5% of all cases, followed by angiosarcoma (1.4%), malignant fibrous histitocytoma (5.7%), chondroma (8.4%), Ewing’s sarcoma (16%), and chondrosarcoma (25.8%) (Sisu et al., 2012; Jemal et al., 2005). Secondary bone tumors are usually malignant and develop as a result of soft tissue metastasizing tumors in the breast, liver, or lung. As per the American Cancer Society, the number of joint and bone cancer diagnoses and deaths rises each year (Miller et al., 2019).
Adnexal torsion: from benign to malignant adnexal masses in a tertiary centre in Northern India
Published in Journal of Obstetrics and Gynaecology, 2022
Anjali Tempe, Tanuja Muthyala, Kaarthiga R. Gopinath, Pushpa Mishra, Niharika Dhiman
Ovarian torsion is a rare gynaecological emergency (prevalence of 2.5−7.4%) in patients undergoing emergency surgery for acute pelvic pain. It is often diagnosed by the presentation of sudden onset of lower abdominal pain with a palpable mass (Swenson et al. 2014). It occurs when an ovarian cyst or mass presents and rotates both the infundibulopelvic ligament and the ovarian ligament. Suspicion of malignancy should arise if the tumour is above 5 cm in diameter (Pansky et al. 2007; Oltmann et al. 2009). Torsion can also occur in normal ovaries, particularly in premenarchal girls, probably because they have elongated infundibulopelvic ligaments (Çelik et al. 2005). About 10% − 22% of ovarian torsion occurs in pregnancy (Ding and Chang 2016). The incidence is higher at 10 − 17 weeks of gestation with ovarian masses larger than 4 cm. The primary risk in an ovarian torsion is the size of the ovarian mass. Even with bilateral cysts, torsion usually occurs on the right side as mobility of left ovary is limited by the sigmoid colon (Çelik et al. 2005). It is more likely to occur with a benign tumour than in malignancy.
Outcomes of ultrasound-guided percutaneous microwave ablation versus surgical resection for symptomatic large hepatic hemangiomas
Published in International Journal of Hyperthermia, 2019
Xiaoyin Tang, Min Ding, Bingwei Lu, Jiachang Chi, Tao Wang, Yaoping Shi, Zhi Wang, Dan Cui, Ping Li, Bo Zhai
Although SR has been reported to be the most effective treatment for large hepatic hemangiomas, it remains a highly invasive procedure involving a long-term recovery period [26]. With a benign tumor, more minimally invasive treatments are needed [27]. Alternatively, TAE or radiation therapy may be used; however, these treatments are not curative. RFA and MWA, the most common local thermal ablation methods, have been used in the treatment of large hepatic hemangiomas. Previously, we reported on the effectiveness and safety of MWA as a new therapeutic modality for large hepatic hemangioma, and found that MWA could potentially be regarded as the first-line therapy [23]. However, more information was required concerning the effectiveness and safety of MWA for large hepatic hemangiomas compared to SR. The present study systemically compared the technical and clinical outcomes of large hepatic hemangiomas treated using SR and MWA procedures.