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1.
Case Rep Dermatol ; 16(1): 108-115, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38650914

RESUMO

Introduction: Tattooing has a rich historical presence in various human civilizations, with the earliest physical evidence dating back to around 3258 BC. While acceptance of tattoos is increasing in the Western world, negative associations remain. Short-pulsed lasers, such as Q-Switched (QS) or picosecond lasers, are the gold standard for tattoo removal. Case Presentation: This case report discusses the successful removal of 17 amateur tattoos, which were self-administered by a 19-year-old female patient using black eyeliner ink and sewing needles. The tattoos, distributed across her body, including the face and hands, were partially or completely removed over 10 sessions using the QS Neodymium-doped Yttrium Aluminum Garnet 1,064-nm laser. Conclusion: The factors that influence the efficacy of tattoo removal are highlighted, including tattoo type, location, and coexisting fibrosis. The psychological and social importance of effective tattoo removal is emphasized, particularly for young people seeking to disassociate from past experiences or affiliations.

2.
J Cosmet Dermatol ; 22(1): 74-78, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35122391

RESUMO

Tattoos are increasingly gathering attention in the young population, especially in second to fourth decade of life. With such trends, rate of its removal also has been on the rise. Treatment options for tattoo removal besides lasers are surgery, radiofrequency, infrared light, cryotherapy, dermabrasion and salabrasion. Unfortunately, none of these procedures are associated with satisfactory cosmetic results due to adverse effects such as scarring and dyspigmentation. Although laser treatment has become the gold standard for tattoo removal, it is also associated with some limitations. Some tattoo inks are resistant to laser, and multiple sessions and multiple wavelengths may be required for its complete removal. Considering these limitations, other treatment modalities for tattoo removal must be explored. This article highlights the non-laser treatment options for tattoo removal. We reviewed all published literature identified from electronic databases (MEDLINE and PubMed) till August 2021 to highlight the non-laser treatment options for tattoo removal.


Assuntos
Terapia a Laser , Tatuagem , Humanos , Remoção de Tatuagem , Tatuagem/efeitos adversos , Lasers , Terapia a Laser/efeitos adversos , Terapia a Laser/métodos , Tinta
3.
J Cosmet Dermatol ; 21(1): 62-70, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34416078

RESUMO

BACKGROUND: Axillary hyperhidrosis characterized by excessive sweating in the axillary regions is a frustrating chronic autonomic disorder leading to social embarrassment, impaired quality of life and usually associated with palmoplantar hyperhidrosis. Identifying the condition and its cause is central to the management. AIM: The aim of this article is to discuss treatment options for axillary hyperhidrosis. METHODS: Comprehensive literature search using PubMed and Google Scholar was performed to review relevant published articles related to diagnosis and treatment of axillary hyperhidrosis. RESULTS: Treatment modalities for axillary hyperhydrosis vary from topical and systemic agents to injectables, newer devices and surgical measures. None except for physical measures using devices or surgery, which destroys the sweat glands to remove them, is possibly permanent and most are associated with attendant side effects. CONCLUSION: Several treatments including medical and surgical option are available for the treatment of axillary hyperhydrosis. Patient education is important component of its management. Individualized approach of management is necessary for optimal outcome of treatment.


Assuntos
Hiperidrose , Qualidade de Vida , Axila , Humanos , Hiperidrose/diagnóstico , Hiperidrose/terapia , Glândulas Sudoríparas , Sudorese , Resultado do Tratamento
4.
Dermatology ; 238(4): 662-667, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34933303

RESUMO

BACKGROUND: Actinic keratosis (AK) is the most common precancerous cutaneous lesion, with risk of progression to cutaneous squamous cell carcinoma. In the current study, we evaluated the efficacy of 20-MHz high-intensity focused ultrasound (HIFU), as a new treatment modality for AK. MATERIALS AND METHODS: Patients with AK lesions (grades I-III) treated with HIFU were included in the study. The clinical assessment was performed 3 months after therapy. RESULTS: Twenty-one patients (14 men, 7 women) with 108 AK lesions (grades I-III) were included in the current study. Ages ranged from 62 to 85 years (mean 72.6 years). Clinically complete resolution of the actinic damage in the treated area was detected in 72.2% of lesions. Furthermore, 28 lesions (26%) showed a reduction of the AK grade, or partial response, after the therapy. Most of the patients experienced annoying but short pain during the procedure. However, late adverse effects of the therapy, such as hypopigmentation, hyperpigmentation and erythema were reported only in a small portion of the lesions. CONCLUSIONS: 20-MHz HIFU could be an effective and safe alternative treatment for AK.


Assuntos
Carcinoma de Células Escamosas , Ceratose Actínica , Fotoquimioterapia , Neoplasias Cutâneas , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Escamosas/patologia , Feminino , Humanos , Ceratose Actínica/tratamento farmacológico , Ceratose Actínica/terapia , Masculino , Pessoa de Meia-Idade , Dor/etiologia , Dor/prevenção & controle , Fotoquimioterapia/métodos , Neoplasias Cutâneas/patologia
5.
Acta Derm Venereol ; 100(10): adv00148, 2020 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-32399574

RESUMO

Intravenous ferric carboxymaltose is increasingly used to treat iron deficiency. However, a common side-effect is paravenous extravasation of iron preparations, resulting in cutaneous siderosis. Quality-switched (QS) lasers and, recently, picosecond (PS) lasers have been used to treat these hyperpigmentations with variable success. The optimal treatment protocol remains unclear. The aims of this study were to assess the response of cutaneous siderosis to treatment with pigment lasers and to determine the optimal wavelength, number of treatment sessions and pulse duration. Fifteen patients with cutaneous siderosis on the arms were included. The effectiveness of laser treatment was evaluated using a 5-point standard Physician Global Assessment (PGA) grading system. Differences in continuous variables between distinct groups of patients were assessed with a Mann-Whitney U test. In all 15 patients clearance of at least 50% was obtained. In 12 patients, at least 75% of pigment was removed. In conclusion, pigment lasers are an effective and safe method to treat cutaneous siderosis.


Assuntos
Extravasamento de Materiais Terapêuticos e Diagnósticos/radioterapia , Compostos Férricos/efeitos adversos , Hematínicos/efeitos adversos , Doença Iatrogênica , Lasers de Estado Sólido/uso terapêutico , Terapia com Luz de Baixa Intensidade/instrumentação , Maltose/análogos & derivados , Siderose/radioterapia , Dermatopatias/radioterapia , Administração Intravenosa , Adolescente , Adulto , Idoso , Extravasamento de Materiais Terapêuticos e Diagnósticos/diagnóstico , Extravasamento de Materiais Terapêuticos e Diagnósticos/etiologia , Feminino , Compostos Férricos/administração & dosagem , Hematínicos/administração & dosagem , Humanos , Lasers de Estado Sólido/efeitos adversos , Terapia com Luz de Baixa Intensidade/efeitos adversos , Maltose/administração & dosagem , Maltose/efeitos adversos , Pessoa de Meia-Idade , Estudos Retrospectivos , Siderose/diagnóstico , Siderose/etiologia , Dermatopatias/diagnóstico , Dermatopatias/etiologia , Resultado do Tratamento , Adulto Jovem
6.
J Cosmet Dermatol ; 19(4): 845-849, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32090488

RESUMO

BACKGROUND: A frequent demand among the female and male population is the reduction of facial wrinkles and pores, and additionally, the improvement of the facial skin texture preferentially achieved by noninvasive treatments. AIMS: The objective of this study was to demonstrate the efficacy and safety of acoustic wave therapy (AWT) and extracorporeal pulse activation therapy (EPAT) technology using mechanical waves in the treatment of facial skin. METHODS: Treatment was performed on the face of 12 patients, with the D-ACTOR 200 (Storz Medical AG) using radial acoustic wave technology, EPAT. Within 6 weeks, six acoustic wave treatment sessions have been performed. A follow-up visit was performed 6 weeks after the last treatment. RESULTS: Measurements with the 3D camera system clearly and objectively demonstrate a significant diminution in facial wrinkles and pores. Additionally, an improvement in skin texture was recognized. CONCLUSIONS: This study, although performed on a small number of patients, tends to show the safety and efficacy of radial AWT in treating facial wrinkles, skin texture, and pores and in a noninvasive way.


Assuntos
Técnicas Cosméticas , Face/efeitos da radiação , Envelhecimento da Pele/efeitos da radiação , Pele/efeitos da radiação , Som , Face/diagnóstico por imagem , Face/fisiologia , Humanos , Imageamento Tridimensional , Pessoa de Meia-Idade , Pele/diagnóstico por imagem , Envelhecimento da Pele/fisiologia , Resultado do Tratamento
7.
Lasers Surg Med ; 51(8): 686-693, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31090089

RESUMO

BACKGROUND AND OBJECTIVE: Recently, a novel acne treatment based on selective photothermolysis of pilosebaceous units with follicular delivery of inert gold microparticles as an exogenous chromophore and diode laser pulses has been developed. To evaluate the efficacy and safety of a single monotherapy treatment regimen with gold microparticles and diode laser exposure in patients with moderate and moderately severe acne. Further, to evaluate the added benefit of a second treatment regimen combined with pharmaceutical acne treatment in patients with inadequate initial response. MATERIALS AND METHODS: Patients with moderate and moderately severe facial acne were recruited in this open-label, pilot study. A single treatment regimen consisted of three weekly facial treatments with topically applied gold microparticles and diode laser pulses. Outcome measures were the proportion of patients with ≥40% improvement in number of acne lesions (weighted lesion count [WLC]) at 12 weeks (single treatment regimen, primary outcome measure), 24, and 36 weeks from baseline (two treatment regimens), safety, and patient satisfaction. RESULTS: A total of 28 patients were enrolled in the study (18 males, 10 females, 19 patients with moderate acne severity, 9 with moderately severe, mean age: 19.8 years). Twenty-five patients underwent analysis for outcome measures. After a single monotherapy treatment regimen, 76% patients (19/25) achieved ≥40% reduction in WLC (mean WLC reduction: 63%; SD: 13%). Of the patients undergoing two treatment regimens (n = 9 patients), 56% experienced a reduction in acne lesion burden (WLC) ≥40% at 24 weeks and 89% 36 weeks post-baseline. Mean pain score was 4.0 (SD: 1.3), and transient erythema and perifollicular edema were commonly noted after treatment. Most patients (81%) were either "satisfied" or "very satisfied" with the treatment. CONCLUSION: Acne therapy based on selective photothermolysis with gold microparticles shows promise and may be used in treatment of moderate to moderately severe acne. Lasers Surg. Med. © 2019 Wiley Periodicals, Inc.


Assuntos
Acne Vulgar/patologia , Acne Vulgar/radioterapia , Ouro/farmacologia , Lasers Semicondutores/uso terapêutico , Terapia com Luz de Baixa Intensidade/métodos , Material Particulado/administração & dosagem , Adolescente , Adulto , Dinamarca , Estética , Feminino , Seguimentos , Humanos , Masculino , Satisfação do Paciente/estatística & dados numéricos , Projetos Piloto , Estudos Prospectivos , Índice de Gravidade de Doença , Suíça , Resultado do Tratamento , Adulto Jovem
8.
Curr Probl Dermatol ; 52: 113-123, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28288459

RESUMO

Early methods of tattoo removal ultimately resulted in unacceptable cosmetic outcomes. While the introduction of laser technology was an improvement over the existing chemical, mechanical, and surgical procedures, the use of nonselective tattoo removal with carbon dioxide and argon lasers led to scarring. Q-switched lasers with nanosecond (10-9) pulse domains were considered to have revolutionized tattoo treatment, by selectively heating the tattoo particles, while reducing the adverse sequelae to adjacent normal skin. Theoretical considerations of restricting pulse duration, to heat tattoo particles to higher temperatures, proposed the use of sub-nanosecond pulses to target particles with thermal relaxation times lower than the nanosecond pulses in Q-switched lasers. Initial studies demonstrated that picosecond (10-12) pulses were more effective than nanosecond pulses in clearing black tattoos. Advances in picosecond technology led to the development of commercially available lasers, incorporating several different wavelengths, to further refine pigment targeting.


Assuntos
Terapia a Laser/métodos , Tatuagem/efeitos adversos , Cicatriz/etiologia , Cicatriz/terapia , Cor , Procedimentos Cirúrgicos Dermatológicos/efeitos adversos , Procedimentos Cirúrgicos Dermatológicos/métodos , Humanos , Tinta , Terapia a Laser/efeitos adversos , Lasers de Estado Sólido/efeitos adversos , Lasers de Estado Sólido/uso terapêutico
9.
Dermatology ; 232(1): 107-11, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26529258

RESUMO

Cutaneous collagenous vasculopathy (CCV) is a rare idiopathic microangiopathy of the cutaneous vasculature characterized histologically by the presence of dilated small blood vessels with flat endothelial cells and thickened walls containing hyaline material in the upper dermis. We report an elderly patient presenting with an extensive form of CCV involving the trunk, upper and lower limbs. She was treated with Multiplex PDL 595-nm/Nd:YAG 1,064-nm laser and optimized pulsed light. This approach, which has never been reported for CCV so far, resulted in a striking and almost complete clearance of the widespread lesions. We here review our knowledge about CCV and therapeutic options available with a survey of the literature.


Assuntos
Lasers de Estado Sólido/uso terapêutico , Terapia com Luz de Baixa Intensidade , Dermatopatias Vasculares/radioterapia , Telangiectasia/radioterapia , Idoso , Feminino , Humanos , Dermatopatias Vasculares/patologia , Telangiectasia/patologia
10.
Lasers Med Sci ; 28(2): 537-42, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22538843

RESUMO

The main use of non-ablative fractional photothermolysis today is for the improvement of wrinkles and scars. The purpose of this work was to evaluate the effect of a "classic" non-ablative fractional 1540 nm on facial photodamaged skin and actinic keratoses. Seventeen patients with facial actinic keratoses (AKs) and photodamage underwent two or three laser treatments with fractional 1540-nm erbium glass laser at fluences of 75 mJ, 15 ms pulse duration, and 10-mm spot size in non-contact mode. Two blinded assessors and participants evaluated clinical improvement of treatment areas after 3 months, using a quartile grading scale (no improvement = 0, 1-25% improvement = 1, 26-50% = 2, 51-75% = 3, and 76-100% = 4). Three months after the last treatment, the mean level of improvement was 3.4 ± 0.72 for AK and 3.3 ± 0.54 for skin appearance. Adverse events observed after each treatment were moderate erythema, mild edema, erosions (two cases), and mild desquamation. No scarring or post-inflammatory pigmentary changes were observed. The clinical results were supported by histological changes observed in Yucatan pig studies in vivo and ex vivo. The 1540-nm fractional erbium glass laser in the non-contact mode is a safe and effective treatment for facial photodamage and AKs.


Assuntos
Ceratose Actínica/cirurgia , Terapia a Laser/métodos , Idoso , Cicatriz/patologia , Cicatriz/cirurgia , Edema/etiologia , Eritema/etiologia , Face/patologia , Face/efeitos da radiação , Feminino , Humanos , Ceratose Actínica/patologia , Terapia a Laser/efeitos adversos , Terapia a Laser/instrumentação , Lasers de Estado Sólido/uso terapêutico , Masculino , Pessoa de Meia-Idade , Couro Cabeludo/patologia , Couro Cabeludo/efeitos da radiação , Pele/efeitos da radiação , Luz Solar/efeitos adversos , Resultado do Tratamento
11.
J Cosmet Laser Ther ; 13(6): 291-6, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21981441

RESUMO

INTRODUCTION: Reduction of localised adiposities by non invasive means is a very frequent request among the female and male population. OBJECTIVE: The objective of this study is to demonstrate the efficacy and safety of AWT(®), combining two different mechanical waves, planar AWT and radial AWT during the same session, in volume reduction of saddle bags in women. METHODS: Treatment was performed on the saddle bag areas of 14 female patients, with the CELLACTOR(®) SC1 (Storz Medical AG, Tägerwilen, Switzerland) using extracorporeal pulse activation technology, EPAT(®). This device includes two handpieces, the C-ACTOR(®) and the D-ACTOR(®). Within 4 weeks, eight AWT(®) treatment sessions have been performed with both applicators. Follow-up visits were performed 1, 4 and 12 weeks after the last treatment. RESULTS: Measurements with the ultrasound system clearly demonstrate a significant diminution in the subcutaneous fat layer thickness and a reduction of the averaged circumference of thighs. CONCLUSIONS: This study, although performed on a small number of patients, tends to show the safety and efficacy of AWT(®) in treating localized fat areas in a non-invasive way. There is also an additional benefit for patients in reducing the cellulite appearance and improving the skin firmness at the same time by using AWT(®).


Assuntos
Distribuição da Gordura Corporal , Técnicas Cosméticas , Obesidade/terapia , Som , Terapia por Ultrassom , Feminino , Humanos , Lipólise , Coxa da Perna , Resultado do Tratamento
12.
Curr Probl Dermatol ; 42: 97-110, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21865802

RESUMO

Over 50,000 new tattoos are placed each year in the United States. Studies estimate that 24% of American college students have tattoos and 10% of male American adults have a tattoo. The rising popularity of tattoos has spurred a corresponding increase in tattoo removal. Not all tattoos are placed intentionally or for aesthetic reasons though. Traumatic tattoos due to unintentional penetration of exogenous pigments can also occur, as well as the placement of medical tattoos to mark treatment boundaries, for example in radiation therapy. Protocols for tattoo removal have evolved over history. The first evidence of tattoo removal attempts was found in Egyptian mummies, dated to have lived 4,000 years BC. Ancient Greek writings describe tattoo removal with salt abrasion or with a paste containing cloves of white garlic mixed with Alexandrian cantharidin. With the advent of Q-switched lasers in the late 1960s, the outcomes of tattoo removal changed radically. In addition to their selective absorption by the pigment, the extremely short pulse duration of Q-switched lasers has made them the gold standard for tattoo removal.


Assuntos
Terapia a Laser/métodos , Tatuagem , Humanos , Pigmentos Biológicos
14.
J Cosmet Laser Ther ; 12(2): 54-60, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20331340

RESUMO

BACKGROUND AND OBJECTIVES: Port wine stains (PWS) are capillary malformations typically treated with lasers or with intense pulsed light (IPL). This paper summarizes our safety and efficacy findings for a new IPL designed to target the dermal vessels of PWS. METHODS: The PWS received three to four treatments with a novel IPL containing a vascular-specific handpiece (LuxG, dual wavelength band of 500-670 nm and 870-1400 nm; Palomar Medical Technologies, Inc.). Clinical benefit was assessed qualitatively with a quartile-assessment scale and quantitatively with a skinphotometer. RESULTS: Three months post-treatment, over 50% of PWS exhibited statistically significant improvements of 51-75% or higher. The pre-treatment PWS mean erythema value of 189.72+/-18.40 (95% Confidence Interval [CI]) was reduced to 147.22+/-16.15 post-treatment, thereby approaching the normal skin erythema value of 117.61 +/- 15.90. The mean percent reduction in vascularity at 3 months was statistically significant at -55.4 (p=0.0000003). Treatments were well-tolerated with minimal to no subject downtime and limited side effects of transient erythema (all subjects) or mild crusting and mild purpura (n=1). CONCLUSION: These results demonstrate the efficacy and safety of this novel IPL in providing therapeutic benefit to patients suffering from PWS.


Assuntos
Terapia a Laser/métodos , Satisfação do Paciente , Fototerapia/métodos , Mancha Vinho do Porto/terapia , Administração Cutânea , Adulto , Feminino , Seguimentos , França , Humanos , Masculino , Suíça , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
15.
J Cosmet Laser Ther ; 9(2): 113-24, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17558762

RESUMO

Dermatology and dermatologic surgery have rapidly evolved during the last two decades thanks to the numerous technological and scientific acquisitions focused on improved precision in the diagnosis and treatment of skin alterations. Given the proliferation of new devices for the treatment of vascular lesions, we have considerably changed our treatment approach. Lasers and non-coherent intense pulse light sources (IPLS) are based on the principle of selective photothermolysis and can be used for the treatment of many vascular skin lesions. A variety of lasers has recently been developed for the treatment of congenital and acquired vascular lesions which incorporate these concepts into their design. The list is a long one and includes pulsed dye (FPDL, APDL) lasers (577 nm, 585 nm and 595 nm), KTP lasers (532 nm), long pulsed alexandrite lasers (755 nm), pulsed diode lasers (in the range of 800 to 900 nm), long pulsed 1064 Nd:YAG lasers and intense pulsed light sources (IPLS, also called flash-lights or pulsed light sources). Several vascular lasers (such as argon, tunable dye, copper vapour, krypton lasers) which were used in the past are no longer useful as they pose a higher risk of complications such as dyschromia (hypopigmentation or hyperpigmentation) and scarring. By properly selecting the wavelength which is maximally absorbed by the target--also called the chromophore (haemoglobin in the red blood cells within the vessels)--and a corresponding pulse duration which is shorter than the thermal relaxation time of that target, the target can be preferentially injured without transferring significant amounts of energy to surrounding tissues (epidermis and surrounding dermal tissue). Larger structures require more time for sufficient heat absorption. Therefore, a longer laser-pulse duration has to be used. In addition, more deeply situated vessels require the use of longer laser wavelengths (in the infrared range) which can penetrate deeper into the skin. Although laser and light sources are very popular due to their non-invading nature, caution should be considered by practitioners and patients to avoid permanent side effects. These guidelines focus on patient selection and treatment protocol in order to provide safe and effective treatment. Physicians should always make the indication for the treatment and are responsible for setting the machine for each individual patient and each individual treatment. The type of laser or IPLS and their specific parameters must be adapted to the indication (such as the vessel's characteristics, e.g. diameter, colour and depth, the Fitzpatrick skin type). Treatments should start on a test patch and a treatment grid can improve accuracy. Cooling as well as a reduction of the fluence will prevent adverse effects such as pigment alteration and scar formation. A different number of repeated treatments should be done to achieve complete results of different vascular conditions. Sunscreen use before and after treatment will produce and maintain untanned skin. Individuals with dark skin, and especially tanned patients, are at higher risk for pigmentary changes and scars after the laser or IPLS treatment.


Assuntos
Terapia com Luz de Baixa Intensidade/métodos , Terapia com Luz de Baixa Intensidade/normas , Fototerapia/métodos , Fototerapia/normas , Guias de Prática Clínica como Assunto , Doenças Vasculares/terapia , Humanos , Consentimento Livre e Esclarecido , Seleção de Pacientes
16.
J Cosmet Laser Ther ; 7(1): 33-8, 2005 03.
Artigo em Inglês | MEDLINE | ID: mdl-16020215

RESUMO

Laser- or flashlamp- (also called intense pulsed light source or IPLS) assisted hair removal is a well tolerated and effective technique for patients who desire permanent reduction of hair growth. Although laser and light sources are very popular because of their non-invasive nature and the speed at which they operate, practitioners and patients have to be cautious to avoid permanent side effects instead of permanent hair reduction. These guidelines focus on patient selection and treatment protocol in order to provide safe and effective treatment. The ideal patient for laser hair removal is light skin with black coarse hair. Blond, grey and white hair does not respond to treatment. Individuals with dark skin, and especially tanned patients, are at higher risk for pigmentary changes. Sunscreen before and after treatment will produce and maintain untanned skin. The type of laser or IPLS and their specific parameters must be adapted to the patient (hair thickness, pigment concentration, Fitzpatrick skin type). Treatments should start on a test patch and a treatment grid can improve accuracy. Pre-, parallel and post-cooling, as well as a reduction of the fluence, will prevent adverse effects such as pigment alteration and scar formation. Average rates of long-term hair reduction are reported at between 70% and 90% at 6 months follow-up. At least three repeated treatments should be done to achieve partly permanent epilation.


Assuntos
Remoção de Cabelo/normas , Terapia a Laser , Lasers/normas , Remoção de Cabelo/efeitos adversos , Remoção de Cabelo/instrumentação , Humanos , Consentimento Livre e Esclarecido , Lasers/efeitos adversos , Seleção de Pacientes
17.
Dermatol Surg ; 31(5): 562-6; discussion 566-8, 2005 May.
Artigo em Inglês | MEDLINE | ID: mdl-15962742

RESUMO

BACKGROUND: Basal cell carcinoma (BCC) is the most common type of skin cancer. One of the main problems with BCC is the risk of local recurrence of the tumor after treatment. This is mainly due to its irregular outgrowths, which cannot be detected clinically. OBJECTIVE: To better understand the tumor morphology and growth pattern of BCC, we tried to develop a method that provides a precise three-dimensional model of the tumor. METHODS: Because Mohs surgery provides the best overview of the tumor and the tumor margins (both lateral and in depth), the reconstruction was based on slides from Mohs surgery. After digitization and processing of the slides, the tumor was then surrounded by a Mohs surgeon on a computer screen. These selections (lines) were used for a three-dimensional reconstruction of the tumor using MedSurf3D software. RESULTS: This method allows three-dimensional reconstruction of any given BCC. The MedSurf3D software enables visualization of a three-dimensional model of the tissue, which is removed during the surgical procedure. CONCLUSIONS: Three-dimensional reconstruction is a fascinating tool that might improve our understanding of the behavior, growth pattern, and tumor morphology of BCCs. This technique might also be useful in other fields of cutaneous oncology, such as the calculation of the tumor volume of melanomas.


Assuntos
Carcinoma Basocelular/cirurgia , Cirurgia de Mohs/métodos , Neoplasias Cutâneas/cirurgia , Carcinoma Basocelular/patologia , Humanos , Processamento de Imagem Assistida por Computador , Neoplasias Cutâneas/patologia
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