BACKGROUND Many cerebral aneurysms can be treated effectively with intracranial stents. Unfortunately, stents can occlude perforating vessels near the treatment site which can decrease cerebral perfusion and increase the risk of stroke. METHODS Particle image velocimetry was used to investigate the effects of intracranial stents on flows in perforators near a treated aneurysm. In Phase 1 of t...

OBJECTIVE To determine the clinical efficacy and local haemodynamic effects of perforating vein surgery in ulcerated limbs with combined deep and perforating vein incompetence. DESIGN Prospective, interventional study. MATERIALS AND METHODS Seven ulcerated limbs with combined primary deep and perforating vein incompetence were studied. Clinical efficacy was determined by ultimate ulcer heal...

Perforating dermatoses (PD) represent a rare group of papulonodular skin diseases with a distinct central keratotic core. The core represents the transepidermal elimination of an altered dermal substance.1 Diagnosis is established via biopsy and histopathologic evaluation. Whereas primary PD are diseases chiefly characterized by transepidermal elimination, secondary PD are a group of unrelated ...

To the Editor: Lichen nitidus is a rare disorder characterized by multiple, skin-colored, micropapular lesions with a smooth, shiny surface, located preferentially on the flexor surface of the arms and wrists and on the abdomen and genitalia, though they can become generalized. Histological study shows a lymphohistiocytic infiltrate that broadens the dermal papillae and that is limited laterall...

(A) Prominent filling defect at the floor of the proximal left anterio septal perforating branch. Left main coronary artery normal. Left c wire biased down septal perforating branch of the LAD. Thrombus Far field of the vessel (9 to 1 o’clock positions) drops out and is n erosclerotic plaque in the LAD—visualized by OCT at the 9 to 10 o branch. (F) Further ruptured atherosclerotic plaque in the...

Perforating granuloma annulare (GA) is a rare subset of GA with an unknown etiology and chronic course. Herein, we report the case of 72 year-old women with a 3-month history of a post-traumatic, persistent, erythematous and exudative plaque located on her left leg. Differential diagnosis included mycobacterial infection, subcutaneous mycosis, perforating dermatoses, pyoderma and squamous cell ...

BACKGROUND Although many articles on perforating veins have been published, much knowledge about these veins is lacking. OBJECTIVE In this review relevant facts about the clinical importance of perforating veins in venous disease are described. METHODS A literature search on English, French and German articles has been performed using literature databases like Medline, Embase and Cochrane. ...

Various reported methods to demonstrate the territory supplied by an intracranial artery are designed to deal with major cerebral arteries or a group of perforating arteries. We have devised a technique to demonstrate the area supplied by individual small perforating arteries using different dyes with gelatin. A temporal craniectomy was made in the dog and the posterior circle of Willis was exp...

background osteotomy is one of the major steps in rhinoplasty. the aim of study was to compare edema and ecchymosis after external and internal lateral osteotomy in patients who underwent rhinoplasty. methods based on a prospective randomized clinical trial, 168 osteotomies were performed through an external route in a perforating fashion and internal route in a continuous fashion at right or l...

AIM This study aimed to investigate the microsurgical anatomy of perforating arteries in the hypothalamic area, which are associated with diabetes insipidus. MATERIAL AND METHODS A total of 20 adult cadaver heads soaked in formalin were infused with red latex through the carotid artery and vertebral artery, and supplementary perfusion was performed after 1 day. RESULTS The perforating arter...