[Differential diagnosis and management of intramuscular myxomas: A review of our experience].

Background: Intramuscular myxoma is a rare benign soft tissue tumour of mesenchymal origin, which appears as a painless mass of slow growth. Early diagnosis is important in order to differentiate it from other entities, especially soft tissue sarcoma.

Clinical Cases: Two cases, both women with a mean age of 52.

Primary esophageal melanoma: report of a case.

Introduction: Primary malignant melanoma of the esophagus is a rare tumor representing only 0.1-0.2% of esophageal malignancies.

Nutritional alterations after very low-calorie diet before bariatric surgery.

Introduction: There has been an alarming worldwide increase of obese people in recent years. Currently, there is no consensus on whether patients that are scheduled to undergo bariatric surgery should lose weight before the intervention. The objective of this research is to analyse the influence of pre-surgery loss of weight in the nutritional parameters of patients.

Usefulness of the log odds of positive lymph nodes to predict and discriminate prognosis in gastric carcinomas.

Background: The lymph node ratio (LNR) and log odds of positive lymph nodes (LODDS) have been proposed to minimize the stage migration phenomenon. The value of the LODDS and LNR staging systems to predict and discriminate prognosis was assessed and compared to the International Union Against Cancer (UICC) TNM classification (pN).

Methods: Three hundred and twenty-six patients with gastric carcinoma were retrospectively studied.