Contrast-enhanced ultrasound (CEUS) imaging for active surveillance of small renal masses.

Purpose: To assess the safety and efficacy of contrast-enhanced ultrasound (CEUS) imaging for monitoring small (< 4 cm) renal masses (SRM) in patients undergoing active surveillance (AS).

Methods: We retrospectively selected all consecutive patients with SRMs who underwent AS for at least 6 months at our Institution between January 2014 and December 2018. CEUS imaging was performed by two experienced genitourinary radiologists at established time points.

Rosai-Dorfman Disease Presenting as Peripheral Vascular Insufficiency.

Rosai-Dorfman (-Destombes) disease (RDDD) is a rare idiopathic disorder of histiocyte proliferation, usually involving lymph node stations. The most common clinical finding is a bilateral cervical lymphadenopathy, fever, and weight loss. Arterial or venous structures are notably not involved.

Indole 3-acetic acid-photodynamic therapy in the treatment of multiple actinic keratoses: A proof of concept pilot study.

Background: Actinic Keratoses (AK) are considered a form of in situ Squamous Cell Carcinoma (SCC) arising on chronically photoexposed skin. PDT with ALA or MAL is an effective treatment for multiple AK due its high Overall Response Ratio (ORR) but is burdened by important drawbacks: time-consumption, pain and high costs. Indole-3 acetic acid (IAA) is a newly described photosensitizer with proven clinical efficacy on seborrheic dermatitis and acne vulgaris.

The mid-distal deep femoral artery: few important centimeters in vascular surgery.

The deep femoral artery is an important artery in lower-limb revascularization. Employing its initial centimeters as either an inflow or an outflow site has been advocated by many authors. The purpose of this work was to highlight the importance of the mid-distal section of the deep femoral artery, underlining its indications and advantages.

Determinants of in-stent restenosis after carotid angioplasty: a case-control study.

Purpose: To report a retrospective study that sought to identify clinical factors contributing to the development of in-stent restenosis in the carotid arteries, to profile the patients at greatest risk, and to review the treatment modalities evolved from our experience.

Methods: Between December 2000 and April 2003, 195 carotid angioplasty/stenting (CAS) procedures (12 bilateral) were performed in 183 patients (131 men; median age 65.9 years, interquartile range 55.

Rupture of internal iliac artery aneurysm presenting as rectus sheath hematoma: case report.

This report describes a ruptured internal iliac artery aneurysm that presented as a rectus sheath hematoma (RSH). The patient developed abdominal pain and a large, tense lower abdominal wall mass without peritoneal signs. Computed tomography scan demonstrated a massive RSH contiguous with a ruptured left internal iliac artery aneurysm.

Exonucleolytic degradation of double-stranded RNA by an activity in Xenopus laevis germinal vesicles.

We have identified, in extracts from Xenopus laevis germinal vesicles, a 5' exonuclease activity that cleaves double-stranded RNA (dsRNA). Features of the 5' ends of dsRNAs determine whether the strands are symmetrically or asymmetrically degraded. The activity hydrolyzes in the 5' to 3' direction, releasing 5'-mononucleotides processively, favoring strands with 5'-monophosphate termini; molecules with capped ends are resistant to digestion.