[Digital artery pseudoaneurysm. Case report and systematic review of the literature].

Introduction: aneurysms are focal and permanent dilations of an artery; in pseudoaneurysms, the normal layers of the blood vessel are replaced by fibrous tissue. Due to their low incidence, as well as the diagnostic and therapeutic challenge they represent; our objective is to present the clinical case of a pseudoaneurysm of a digital artery of the hand and to carry out a systematic review of this pathology.

Material And Methods: literature search in Medline, using the terms "digital artery" and "aneurysm.

[Not Available].

La colitis fulminante por Clostridium difficile se caracteriza por el desarrollo de una inflamación aguda severa del colon, asociada a toxicidad sistémica, y es la forma más grave de colitis aguda con una mortalidad de hasta el 80%. Presentamos el caso de un varón de 45 años que acude al servicio de urgencias por dolor abdominal agudo, diarrea y fiebre. La tomografía computarizada mostró engrosamiento parietal difuso circunferencial del colon, incluido el recto, asociado con estriación de los tejidos circundantes y formaciones ganglionares.

Incidence of COVID-19 after pulmonary function tests: a retrospective cohort study.

Introduction: It has been proposed that exposure to pulmonary function tests (PFT) could be associated with a higher risk of viral transmission. The risk of the Coronavirus Disease 2019 (COVID-19) transmission after performing PFT is unknown. We aimed to assess the incidence  of COVID-19 after a PFT at an academic teaching facility in Buenos Aires, Argentina.

[Acute lumbalgia frequency and treatment at a private hospital emergency plant].

Introduction: Acute back pain (LA) is a considerable problem in any care setting. The Emergency Department (ED) intended to provide immediate, timely and effective care. Our objective was to estimate the prevalence and describe the usual care process.

[IgG4 related disease presenting as panhypopituitarism and perimacular scotoma].

IgG4-related disease (IgG4-RD) is a recently described systemic entity of unknown origin. It predominantly affects older men and has distinctive histopathologic features as storiform fibrosis, obliterative phlebitis, dense lymphoplasmacytic infiltrate with immunostaining for IgG4, and it may be associated with elevated serum levels of IgG4. Although any organ can be affected, pituitary gland is rarely involved.

[Excessive osteoporosis screening in women under 65 years: a cross-sectional study].

Overuse of osteoporosis screening in women at low risk of fracture may lead to overdiagnosis, inappropriate treatment and medicalization. The objective of this work was to estimate the proportion of women aged 45 to 64 enrolled in a private health insurance plan in Buenos Aires undergoing hip dual-energy x-ray absorptiometry (DXA) in 2011 without meeting osteoporosis screening criteria. In this cross-sectional study, 4310 women of this age range that had undergone a hip DXA were identified.