background: subglottic stenosis is defined as inflammatory narrowing of the airway. it can be related to trauma, intubation, autoimmune disorders, vascular malformations, infection and congenital abnormalities. pot-wine stain (pws) is a small dermis venous malformation which is present at birth. pws is found on face and neck, but can occur in throat and can cause subglottic stenosis. case repor...

We present an interesting case report of two sarcoid-like lesions on a port-wine stain (PWS) birthmark in a Brazilian patient which on investigation proved to be cutaneous leishmaniasis.

We used a novel phase-resolved optical Doppler tomographic (ODT) technique with very high flow-velocity sensitivity (10microm/s) and high spatial resolution (10microm) to image blood flow in port-wine stain (PWS) birthmarks in human skin. In addition to the regular ODT velocity and structural images, we use the variance of blood flow velocity to map the PWS vessels. Our device combines ODT and ...

Sturge –Weber syndrome (SWS) or encephalotrigeminal angiomatosis is a sporadic,congenital phakomatosis of unknown etiology.Diagnosed by the triad of facial port wine stain(PWS) in the trigeminal nerve distribution, leptomeningeal venous angiomatosis ,and glaucoma. Bilateral Sturge-Weber Syndrome is a rare entity. We present in this report a rare case of bilateral SWS type II , with PWS involvin...

Sir, Thorium X, a natural isotope of radium, was the main radiotherapeutic modality for treating vascular lesions of the skin including port-wine stain (PWS) available to dermatologists during the 1930s to 1950s. It disappeared from dermatological practice around the 1960s, and the chapter on thorium X was considered closed (1, 2). However, occasionally long-term sequelae have been described (2...

We report on development of an optical-thermal model to evaluate the use of pulsed photothermal radiometry (PPTR) for depth profiling of port wine stain (PWS) skin. In the model, digitized histology sections of a PWS biopsy were used as the input skin geometry. Laser induced temperature profiles were reconstructed from simulated PPTR signals by applying an iterative, non-negatively constrained ...

Ó Abstract Sturge-Weber syndrome (SWS) also known as encephalotrigeminal angiomatosis. It is a neurocutaneous syndrome, characterized by a facial vascular birthmark and neurological abnormalities. An ipsilateral or bilateral facial cutaneous vascular malformation Port Wine Stain (PWS) usually affects the upper face. Other clinical manifestations are seizures, glaucoma, hemiparesis, mental retar...

As a kind of congenital vascular malformations, Port Wine Stain (PWS) is composed of ectatic venular capillary blood vessels buried within healthy dermis. In clinic, Pulsed Dye Laser (PDL) in visible band (e.g. 585 or 595 nm) together with cryogen spray cooling has become the golden standard for treatment of PWS. However, due to the limited energy penetration depth of the PDL, deeply buried blo...

Port-wine stain (PWS) birthmarks are one class of benign congenital vascular malformation. Laser therapy is the most successful treatment modality of PWS. Unfortunately, this approach has limited efficacy, with only 10% of patients experiencing complete blanching of the PWS. To address this problem, several research groups have developed technologies and methods designed to study treatment outc...

We report on application of pulsed photothermal radiometry (PPTR) to determine the depth of port wine stain (PWS) blood vessels in human skin. When blood vessels are deep in the PWS skin (>100 microm), conventional PPTR depth profiling can be used to determine PWS depth with sufficient accuracy. When blood vessels are close or partially overlap the epidermal melanin layer, a modified PPTR techn...