Tomasetti and Vogelstein (2015a) find that the incidence of a set of cancer types is correlated with the total number of normal stem cell divisions. Here, we separate the effects of standing stem cell number (i.e., organ or tissue size) and per stem cell lifetime replication rate. We show that each has a statistically significant and independent effect on explaining variation in cancer incidenc...

Background: Head and neck cancer is the sixth most common cancer in the world, with 690,000 new cases identified in 2012. There are some arguments over an increase or a decrease in the incidence rate of head and neck cancers in different locations. This study is conducted aimed at determining the frequency of head and neck cancers in patients referring to Rafsanjan Ali-ibn Abi Talib hospital pa...

background: chemotherapy-induced amenorrhea is one of long term side effects of adjuvant chemotherapy in patients with breast cancer which may interfere with their future reproductive function. although amenorrhea is well recognized, the actual incidence following taxanes remains uncertain. methods: in a cross sectional study, we identified breast cancer patients aged 45 years or younger who we...

evidence acquisition medline, pubmed, ovid and embase were used to search for clinical studies comparing with or without prophylactic use of lamivudine for hbv reactivation in breast cancer patients receiving chemotherapy. outcomes of interest were the rate of hbv reactivation, incidence of hepatitis and incidence of hepatitis attributable to hbv reactivation, severity of hepatitis and severity...

The incidence of lipoma among parotid tumours ranges from 0.6% to 4.4%, with most series reporting an incidence of 1%. The most common origin of these tumours, in the parotid gland, is from the superficial lobe and, only rarely, from the deep lobe. Lipomas, upon clinical history, are found to be most frequently related to an episode of trauma. Computed Tomography scan and Magnetic Resonance Ima...

Thyroid cancer is the 9th most common in world. Thus, year 2020, 586.000 cases of thyroid were registered worldwide. The incidence rate among women 10.1 per 100 thousand population, and men — 3.1 population. In Ukraine, 2019, standardized (world standard) was 6.9 100.000 population (2.8 men, 10.5 women). structure malignant neoplasms cervical spine, ranks first place aged 18 29 (19.9 %), fourth...

background and purpose: breast cancer is the most common malignancy and a leading cause of cancer deaths in women throughout the world. breast cancer is accounted for 16 percent of all cancers. this study was performed to investigate the epidemiology of breast cancer in mazandaran province. materials and methods: this longitudinal descriptive study included all cases with breast cancer recorded...