A cerebral clue in the stomach: Brain lesion leads to discovery of hidden gastric cancer.

Introduction And Importance: Brain metastases from gastric adenocarcinoma are exceptionally rare, comprising only 0.1-0.16 % of all brain metastases.

Evaluation and Comparison of the Dose Received by the Mandible, Maxilla, and Teeth in Two Methods of Three-dimensional Conformal Radiation Therapy and Helical Tomotherapy.

Background: Using three-dimensional conformal radiation treatment (3D-CRT) and helical tomotherapy (HT), this study examines and contrasts the dosage received by the mandible, maxilla, and teeth.

Methods: Sixteen patients with head-and-neck cancer (H and NC) were the subject of treatment planning at the Seyyed Al-Shohada Hospital in Isfahan, Iran. This study examined target coverage quality, exposure of healthy tissue, and radiation delivery effectiveness.

Investigating the effect of Aloe vera on the prevention and treatment of radiotherapy-induced oral mucositis in patients with head-and-neck cancer.

Background: Oral mucositis is one of the main complications of radiotherapy (RT) while treating head-and-neck cancers and can affect the patients' treatment process and life. Therefore, this study evaluated the effect of Aloe vera on the prevention and treatment of radiotherapy-induced oral mucositis (RIOM) in patients with head-and-neck cancer.

Materials And Methods: This was a double-blind clinical trial performed in 2019 on 75 patients with head-and-neck cancer.

The Effect of Topical Vitamin K1 on the Treatment of Cetuximab-Induced Skin Rashes in Metastatic Colorectal Cancer Patients.

Background: Considering the prevalence of cetuximab-induced rashes in colorectal cancer patients and its impact on patient's quality of life and treatment, this study aimed at investigating the effect of topical vitamin K1 on the treatment of skin rashes in metastatic colorectal cancer patients treated with cetuximab.

Materials And Methods: This randomized, controlled, triple-blind, clinical trial was conducted on 49 metastatic colorectal cancer patients who were candidates for cetuximab treatment and referred to Omid Hospital in Isfahan during 2021-2022. Vitamin K1 cream with a concentration of 0.

Sensitivity Analysis of a 6 MeV Photon Beam Monte Carlo Model.

Background: This study aimed to optimize efficiency in Monte Carlo (MC) simulation using sensitivity analysis of a beam model.

Methods: The BEAMnrc-based model of 6 MV beam of a Siemens Primus linac was developed. For sensitivity analysis, the effect of the electron source, treatment head, and virtual phantom specifications on calculated percent depth dose (PDD) and lateral dose profiles was evaluated.

Comparison of oral candidiasis characteristics in head-and-neck cancer patients before and during radiotherapy.

Background: Patients undergoing head-and-neck radiotherapy are susceptible to colonization and infection. This study aimed to identify oral species type (ST), colony count (CC), and oropharyngeal candidiasis (OPC) in head-and-neck cancer patients, undergoing radiotherapy, before and 2 weeks after radiation.

Materials And Methods: In this quasi-experimental study, head-and-neck cancer patients undergoing radiotherapy (up to 6000 cGy) were recruited.

Comparison of the antifungal effect of voriconazole and fluconazole on oral candidiasis before and during radiotherapy.

Background: Head-and-neck radiotherapy can change oral species and cause candidiasis resistance to common antifungals by making the changes to the oral cavity environment. Voriconazole is a synthetic azole with extensive antifungal activity. The current study aimed at comparing the antifungal activity of fluconazole and voriconazole on species isolated from the oral cavity of patients undergoing head-and-neck radiotherapy.

Preventive effects of zinc sulfate on taste alterations in patients under irradiation for head and neck cancers: A randomized placebo-controlled trial.

Background: Taste abnormalities are common among cancer patients after starting radiotherapy or chemotherapy. Considering the role of zinc and reports on its beneficial effects in taste perception, we evaluated the preventive effects of zinc sulfate on radiation-induced taste alterations.

Materials And Methods: In a randomized, placebo-controlled trial, adult patients with head and neck cancers who were on schedule for radiotherapy, with or without chemotherapy, were allocated to receive zinc sulfate (50 mg, three times a day) or placebo; started with beginning of radiotherapy and continued for one month later.