Erdheim-Chester disease: Typical radiologic findings of a multisystemic disease.

Erdheim-Chester disease is a rare and multisystemic entity. It results from the infiltration of tissues by foamy histiocytes. The etiology is unknown, but there are mutations in the MAPK pathway in over 80% of patients, more frequently BRAF mutation.

Large incidental esophageal leiomyoma: Radiological findings.

Benign tumors of the esophagus are rare, the most common of them being leiomyomas. Malignant transformation is extremely rare, and they are often asymptomatic. Tumors larger than 5 cm frequently cause symptoms such as epigastric discomfort, heartburn, or dysphagia.

Controversial aspects of the concept of health needs and their impact on the accessibility of medicine and health services.

This article aimed to present the problems related to accessibility of health services by re-reading four case studies which illustrate the different dimensions of the definition of health needs and their impact on the accessibility of medicine and health services. The theoretical model of Vargas-Peláez et al.1, which allows a better understanding of the complexity of the definition of health needs and its impact on the demand for medicines and services, was adopted to re-read the case studies on the prices of patented medicines, the models of public provision, hemodynamic services, and prescription of anxiolytics.

VARICOSITY OF THE COMMUNICATING VEIN BETWEEN THE LEFT RENAL VEIN AND THE LEFT ASCENDING LUMBAR VEIN.

32 years-old female patient presented with lumbar pain. Computed tomography revealed varicosity of the communicating vein between the left renal vein and the left ascending lumbar vein. This entity may pose technical difficulties during aortoiliac surgeries and renal surgeries as iatrogenic injury of this vessel may cause life- -threatening retroperitoneal hemorrhage.

Can the antral follicular count modulate the gene expression of bovine oviducts in Aberdeen Angus and Nelore heifers?

The number of visible ovarian antral follicles (antral follicle count-AFC) is repeatable in bovine individuals, but highly variable between animals, and with differences between Bos taurus and Bos indicus breeds. Several studies have tried to determine the correlation between AFC and increased fertility in cattle. While the impacts of AFC on embryo production, hormonal levels, and pregnancy rates have been described, the molecular effects of AFC on bovine oviducts have not yet been investigated.

Regulatory and junctional proteins of the blood-testis barrier in human Sertoli cells are modified by monobutyl phthalate (MBP) and bisphenol A (BPA) exposure.

The blood-testis barrier (BTB) is responsible for providing a protected environment and coordinating the spermatogenesis. Endocrine disruptors (EDs) might lead to infertility, interfering in the BTB structure and modulation. This study aimed to correlate the actions of two EDs, monobutyl phthalate (MBP) and bisphenol A (BPA) in different periods of exposure, in a low toxicity dose to the human Sertoli cells (HSeC) and its effects on the proteins of the BTB and regulatory proteins involved in its modulation.

Gestational and lactational exposition to Di-N-butyl-phthalate (DBP) increases inflammation and preneoplastic lesions in prostate of wistar rats after carcinogenic N-methyl-N-nitrosourea (MNU) plus testosterone protocol.

In the present study, it was evaluated the susceptibility of prostatic lesions in male adult rats exposed to Di-N-butyl-phthalate during fetal and lactational periods and submitted to MNU plus testosterone carcinogenesis protocol. Pregnant females were distributed into four experimental groups: CN (negative control); CMNU (MNU control); TDBP100 (100 mg/kg of DBP); TDBP500 (500 mg/kg of DBP). Females from the TDBP groups received DBP, by gavage, from gestation day 15 (GD15) to postnatal day 21 (DPN21), while C animals received the vehicle (corn oil).