PARP inhibition radiosensitizes BRCA1 wildtype and mutated breast cancer to proton therapy.

Aggressive breast cancers often fail or acquire resistance to radiotherapy. To develop new strategies to improve the outcome of aggressive breast cancer patients, we studied how PARP inhibition radiosensitizes breast cancer models to proton therapy, which is a radiotherapy modality that generates more DNA damage in the tumor than standard radiotherapy using photons. Two human BRCA1-mutated breast cancer cell lines and their isogenic BRCA1-recovered pairs were treated with a PARP inhibitor and irradiated with photons or protons.

Retroperitoneal leiomyosarcoma diagnosis and management in a chronic kidney disease context: A case report.

Introduction And Importance: While the treatment approach for sarcomas seems straightforward and well-defined, we often encounter several diagnostic or therapeutic challenges in clinical practice. This article presents a case of retroperitoneal leiomyosarcoma in a patient with chronic kidney disease, highlighting the complexity of managing such cases.

Case Report: A 63-year-old woman with a history of chronic kidney disease presented with a progressively enlarging mass in her right flank.

Anorectal melanoma: A case report of an unusual localization.

Introduction And Importance: Primary anorectal melanoma (ARM) is a rare neoplasm with an extremely poor prognosis. It represents less than 1 % of all melanomas and accounts for less than 1 % of anorectal malignancies. We report a case of anorectal primary melanoma treated surgically.

An empirical model of carbon-ion relative biological effectiveness based on the linear correlation between radiosensitivity to photons and carbon ions.

To develop an empirical model to predict carbon ion (C-ion) relative biological effectiveness (RBE).We used published cell survival data comprising 360 cell line/energy combinations to characterize the linear energy transfer (LET) dependence of cell radiosensitivity parameters describing the dose required to achieve a given survival level, e.g.

Hook-shaped distal common bile duct due to peptic ulcer mimicking cholangiocarcinoma.

Introduction And Importance: Internal and spontaneous bilio-digestive fistulas, without primary biliary disease, are an infrequent complication of the upper digestive tract. We report a case of a Hook-shaped distal common bile duct due to peptic ulcer mimicking cholangiocarcinoma.

Case Report: A 63-year-old patient, with no medical history, presented to the emergency department with recent jaundice.