pigmented lesion

  • 文章类型: Journal Article
    目的:使用超宽视野(UWF)眼底成像结合导航中央和周边横截面和三维(3D)扫频源光学相干断层扫描(SS-OCT)扫描评估中央和周边视网膜和脉络膜疾病。
    方法:回顾性研究,涉及332名连续患者,男性和女性的分布几乎相等。患者的平均年龄为52岁(范围18-92岁)。平均屈光误差为-3.80D(范围为7.75至-20.75D)。
    结果:本研究中的观察结果证明了外周导航SS-OCT在评估各种眼部疾病中的功效。该技术提供了高质量的周边玻璃体图像,玻璃体视网膜界面,视网膜,和脉络膜,使玻璃体漂浮物和混浊物可视化,视网膜裂孔和眼泪,色素性病变,和周边视网膜变性。3DOCT扫描增强了这些异常的可视化,并改善了诊断和治疗决策。
    结论:导航的中央和周边横断面和3DSS-OCT扫描在视网膜疾病的评估和管理中提供了显著的互补益处。他们除了UWF成像提供了中央和周边眼结构的全面视图,帮助早期发现,精确的解剖学测量,和疾病进展的客观监测。此外,这项技术是患者教育的宝贵工具,学员的教学工具,和用于医学法律目的的文件。
    OBJECTIVE: To assess central and peripheral retinal and choroidal diseases using ultra-widefield (UWF) fundus imaging in combination with navigated central and peripheral cross-sectional and three-dimensional (3D) swept source optical coherence tomography (SS-OCT) scans.
    METHODS: Retrospective study involving 332 consecutive patients, with a nearly equal distribution of males and females. The mean age of patients was 52 years (range 18-92 years). Average refractive error was -3.80 D (range +7.75 to -20.75 D).
    RESULTS: The observations in this study demonstrate the efficacy of peripheral navigated SS-OCT in assessing various ocular conditions. The technology provides high-quality images of the peripheral vitreous, vitreoretinal interface, retina, and choroid, enabling visualization of vitreous floaters and opacities, retinal holes and tears, pigmented lesions, and peripheral retinal degenerations. 3D OCT scans enhance the visualization of these abnormalities and improve diagnostic and therapeutic decisions.
    CONCLUSIONS: Navigated central and peripheral cross-sectional and 3D SS-OCT scans offer significant complementary benefits in the assessment and management of retinal diseases. Their addition to UWF imaging provides a comprehensive view of central and peripheral ocular structures, aiding in early detection, precise anatomical measurements, and objective monitoring of disease progression. In addition, this technology serves as a valuable tool for patient education, a teaching tool for trainees, and documentation for medico-legal purposes.
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  • 文章类型: Case Reports
    最近提出黑色素细胞瘤一词是指具有特定组织病理学和分子遗传学特征的中期黑色素细胞病变。先前的研究表明,这些中间病变扩散到区域淋巴结的可能性更高,远处传播的可能性降低,与黑色素瘤相比。
    这里我们介绍了一例28岁男性,他表现为复发性右下睑缘合并皮肤和眼睑结膜色素病变,最终被归类为黑色素细胞瘤,为了突出这个新的术语,特征性组织病理学和遗传学发现,和预后影响。
    眼科医生应该了解这种新的皮肤组织病理学分类系统,并将其应用于眶周区域以改善黑素细胞病变的管理和监测。
    UNASSIGNED: The term melanocytoma was recently proposed for intermediate-stage melanocytic lesions with specific histopathologic and molecular genetic features. Prior studies have demonstrated a heightened potential for these intermediate lesions to spread to regional lymph nodes, with decreased likelihood for distant spread, when compared to melanomas.
    UNASSIGNED: Herein we present a case of a 28-year-old male who presented with a recurrent right lower eyelid margin combined cutaneous and palpebral conjunctival pigmented lesion, ultimately classified as a melanocytoma, to highlight this new nomenclature, characteristic histopathologic and genetic findings, and prognostic implications.
    UNASSIGNED: Ophthalmologists should be aware of this new cutaneous histopathologic classification system and apply to the periorbital region to improve melanocytic lesion management and surveillance.
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  • 文章类型: Journal Article
    背景:色素性病变在很大程度上是良性的,可能导致极度痛苦。各种光和激光可用于治疗色素沉着,通常调Q激光器被认为是选择的方法,而强脉冲光(IPL)设备可以提供一个更短的停机时间较少侵入性的治疗。
    目的:本研究的目的是评估窄带IPL模块治疗色素性病变的安全性和有效性。
    方法:回顾性研究20例色素性病变患者接受IPL模块治疗。通过使用0-10的GAIS量表对临床照片进行盲化评估以及通过0-10量表的患者满意度评级来评估治疗。在整个治疗过程中,监测疼痛水平和不良事件.
    结果:平均GAIS评分为7.55±1.15(平均值±SD),患者满意度平均得分为7.3±1.26(平均值±SD)。GAIS和患者满意度评分之间有很强的正相关(r=0.83)。两者无显著性差异(p值=0.516)。治疗次数没有显著影响GAIS和患者满意度评分(p值0.364和0.126)。其他积极的意外结果是改善的皮肤硬度和减少的皱纹。
    结论:研究结果表明,IPL模块在治疗色素性病变方面既安全又有效,并且可能具有刺激胶原蛋白产生的潜力。
    BACKGROUND: Pigmented lesions are largely benign and may lead to extreme distress. Various light and lasers may be used to treat pigmentation, often Q-switched lasers are considered the method of choice, while intense pulsed light (IPL) devices may offer a less invasive treatment with a shorter downtime.
    OBJECTIVE: The purpose of this study is to evaluate the safety and efficacy of a narrowband IPL module for the treatment of pigmented lesions.
    METHODS: A retrospective study of 20 patients with pigmented lesions underwent treatment with an IPL module. Treatment was assessed by blinded evaluation of clinical photographs using a GAIS scale of 0-10, as well as through patient satisfaction ratings on a scale of 0-10. Throughout the treatment, pain levels and adverse events were monitored.
    RESULTS: The mean GAIS score was 7.55 ± 1.15 (mean ± SD), and the mean patient satisfaction score was 7.3 ± 1.26 (mean ± SD). There was a strong positive correlation between GAIS and patient satisfaction scores (r = 0.83), and no significant difference between them (p-value = 0.516). The number of treatments did not significantly affect GAIS and patient satisfaction scores (p-values 0.364 and 0.126). Additional positive unexpected outcomes were improved skin firmness and reduced wrinkles.
    CONCLUSIONS: The results of the study indicate that the IPL module is both safe and effective in treating pigmented lesions and may have the potential to stimulate collagen production.
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  • 文章类型: Journal Article
    背景:IPL装置发射宽范围的波长,这些波长可以被皮肤中的不同发色团吸收。具有最小副作用的特定发色团的选择性破坏由波长控制,脉冲持续时间,和通量。
    目的:本研究旨在评估采用高级荧光技术(AFT)的窄带强脉冲光(IPL)治疗血管和色素性病变,这提供了更有效的每个脉冲能量使用,以提高安全性,改善临床结果。
    方法:回顾性分析100例血管和色素性病变患者的窄带IPL治疗数据。通过整体美学改善量表(GAIS)和患者满意度量表(0-10)测量疗效。通过评估疼痛水平和不良事件来评估安全性。
    结果:血管病变的平均GAIS评分为8.02±0.84,色素性病变的平均GAIS评分为8.14±0.9,组间无显着差异(p=0.49,α=0.05)。患者满意度与GAIS评分相关(相关系数0.8)。没有报告疼痛,两名患者出现暂时和短暂的副作用。
    结论:总体而言,先进的IPL治疗为血管和色素性病变提供了良好的结局.
    BACKGROUND: IPL devices emit a wide range of wavelengths that can be absorbed by different chromophores in the skin. Selective destruction of a specific chromophore with minimal side effects is controlled by wavelength, pulse duration, and fluence.
    OBJECTIVE: This study aims to evaluate the treatment of vascular and pigmented lesions using narrow-band Intense Pulsed Light (IPL) with Advanced Fluorescence Technology (AFT), which offers more efficient energy usage per pulse to increase safety, and improve clinical outcomes.
    METHODS: A retrospective analysis of data from 100 patients treated with narrow-band IPL for vascular and pigmented lesions. Efficacy was measured by the Global Aesthetic Improvement Scale (GAIS) and Patient Satisfaction Scale (0-10). Safety was assessed by evaluating pain levels and adverse events.
    RESULTS: Mean GAIS scores were 8.02 ± 0.84 for vascular and 8.14 ± 0.9 for pigmented lesions with no significant difference between groups (p=0.49, α=0.05). Patient satisfaction correlated with GAIS scores (correlation coefficient 0.8). No pain was reported and two patients experienced temporary and transient side effects.
    CONCLUSIONS: Overall, the advanced IPL treatments provided favorable outcomes for vascular and pigmented lesions.
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  • 文章类型: Journal Article
    目的:黑素体破坏的阈值注量有可能为使用皮秒激光建立色素性病变治疗的临床终点提供可靠的数值指标。尽管以前报道了755nm皮秒激光的阈值,波长依赖性尚未被研究。在这项研究中,确定了黑素体破坏的波长依赖性阈值通量。使用基于阈值的数学模型,辐照参数为532-,730-,755-,785-,和1064nm皮秒激光治疗进行了定量评估。
    方法:使用不同通量的皮秒激光照射从猪眼睛中提取的黑色素体悬浮液。通过动态光散射测量被照射的黑色素体的平均粒径,通过扫描电子显微镜观察它们的破坏,以确定破坏阈值。建立了数学模型,结合获得的阈值和MonteCarlo光传输来计算破坏皮肤组织内黑色素体所需的照射参数。
    结果:对于532-,阈值注量确定为0.95、2.25、2.75和6.50J/cm²,730-,785-,和1064-nm皮秒激光器,分别。数值结果定量地揭示了辐照波长之间的关系,事件通量,以及破坏分布在皮肤组织不同深度的黑色素体所需的斑点大小。计算出的照射参数与临床参数一致,临床参数显示出高疗效,并发症发生率低。
    结论:确定了黑素小体破坏的波长依赖性阈值。基于阈值的分析对辐照参数的评估结果提供了数值指标,用于设置532-,730-,755-,785-,和1064-nm皮秒激光器。
    A threshold fluence for melanosome disruption has the potential to provide a robust numerical indicator for establishing clinical endpoints for pigmented lesion treatment using a picosecond laser. Although the thresholds for a 755-nm picosecond laser were previously reported, the wavelength dependence has not been investigated. In this study, wavelength-dependent threshold fluences for melanosome disruption were determined. Using a mathematical model based on the thresholds, irradiation parameters for 532-, 730-, 755-, 785-, and 1064-nm picosecond laser treatments were evaluated quantitatively.
    A suspension of melanosomes extracted from porcine eyes was irradiated using picosecond lasers with varying fluence. The mean particle size of the irradiated melanosomes was measured by dynamic light scattering, and their disruption was observed by scanning electron microscopy to determine the disruption thresholds. A mathematical model was developed, combined with the threshold obtained and Monte Carlo light transport to calculate irradiation parameters required to disrupt melanosomes within the skin tissue.
    The threshold fluences were determined to be 0.95, 2.25, 2.75, and 6.50 J/cm² for 532-, 730-, 785-, and 1064-nm picosecond lasers, respectively. The numerical results quantitatively revealed the relationship between irradiation wavelength, incident fluence, and spot size required to disrupt melanosomes distributed at different depths in the skin tissue. The calculated irradiation parameters were consistent with clinical parameters that showed high efficacy with a low incidence of complications.
    The wavelength-dependent thresholds for melanosome disruption were determined. The results of the evaluation of irradiation parameters from the threshold-based analysis provided numerical indicators for setting the clinical endpoints for 532-, 730-, 755-, 785-, and 1064-nm picosecond lasers.
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  • 文章类型: Case Reports
    已经报道了几例影响口腔粘膜的弹性纤维瘤病变。临床上,这些病变可能表现为小的外生性病变或较少表现为白色病变。因此,纤维增生和白斑在临床鉴别诊断中并不常见。微观上,可见弹性和纤维结缔组织沉积。很少,在评估口内病变时可以检测到弹性纤维瘤的变化,包括囊肿,唾液腺肿瘤,和上皮发育不良.在这里,我们报告了两个显示弹性纤维瘤变化的口腔病变,扩大其临床病理范围。首例病例是一名46岁男子,1年前有无症状的腭部结节性病变史,诊断为巨细胞纤维瘤伴弹性纤维瘤改变。第二例是一名79岁的妇女,几个月前在下颌牙槽粘膜上出现了色素性和轻度症状的病变,诊断为与弹性纤维瘤变化相关的汞合金纹身。
    Several cases of elastofibromatous lesion affecting the oral mucosa have been reported. Clinically, these lesions may appear as small exophytic lesions or less often as white lesions. Therefore, fibrous hyperplasia and leukoplakia are not uncommonly considered in clinical differential diagnosis. Microscopically, elastic and fibrous connective tissue deposition is seen. Rarely, elastofibromatous changes can be detected when assessing intraoral lesions, including cysts, salivary gland neoplasms, and epithelial dysplasia. Here we report two oral lesions showing elastofibromatous changes, expanding their clinicopathological spectrum. The first case was a 46-year-old man with a history of asymptomatic nodular lesion on the palate 1 year ago, diagnosed as giant cell fibroma with elastofibromatous changes. The second case was a 79-year-old woman who presented a pigmented and mildly symptomatic lesion on the mandibular alveolar mucosa several months ago, diagnosed as amalgam tattoo associated with elastofibromatous changes.
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  • 文章类型: Journal Article
    弹性散射光谱(ESS)设备(DermaSensorInc.,迈阿密,FL)是非侵入性的,无痛,皮肤癌检测的辅助工具。
    研究ESS设备在检测黑色素瘤中的性能。
    预期,调查员失明,在8个美国(US)和2个澳大利亚地点进行了多中心研究。所有符合条件的皮肤病变均为黑色素瘤临床考虑,用ESS设备检查,随后根据皮肤科医生的护理标准进行活检,并进行组织病理学评估。共纳入311名参与者,440个病灶,包括44例黑素瘤(原位63.6%,浸润性36.4%)和44例严重发育不良痣。
    观察到的ESS设备用于黑色素瘤检测的灵敏度为95.5%(95%CI,84.5%至98.8%,44个黑色素瘤中的42个),观察到的特异性为32.5%(95%CI,27.2%至38.3%)。阳性预测值和阴性预测值分别为16.0%和98.1%,分别。
    在高风险人群中对该装置进行了测试,该人群的病变是根据经过董事会认证的皮肤科医生的临床和皮肤镜评估选择进行活检的。大多数登记的病变是色素性的。
    ESS装置检测黑色素瘤的高灵敏度和NPV表明该装置可能是有用的辅助药物,用于黑色素瘤检测的护理点工具。
    UNASSIGNED: The elastic scattering spectroscopy (ESS) device (DermaSensor Inc., Miami, FL) is a noninvasive, painless, adjunctive tool for skin cancer detection.
    UNASSIGNED: To investigate the performance of the ESS device in the detection of melanoma.
    UNASSIGNED: A prospective, investigator-blinded, multicenter study was conducted at 8 United States (US) and 2 Australian sites. All eligible skin lesions were clinically concerning for melanoma, examined with the ESS device, subsequently biopsied according to dermatologists\' standard of care, and evaluated with histopathology. A total of 311 participants with 440 lesions were enrolled, including 44 melanomas (63.6% in situ and 36.4% invasive) and 44 severely dysplastic nevi.
    UNASSIGNED: The observed sensitivity of the ESS device for melanoma detection was 95.5% (95% CI, 84.5% to 98.8%, 42 of 44 melanomas), and the observed specificity was 32.5% (95% CI, 27.2% to 38.3%). The positive and negative predictive values were 16.0% and 98.1%, respectively.
    UNASSIGNED: The device was tested in a high-risk population with lesions selected for biopsy based on clinical and dermoscopic assessments of board-certified dermatologists. Most enrolled lesions were pigmented.
    UNASSIGNED: The ESS device\'s high sensitivity and NPV for the detection of melanoma suggest the device may be a useful adjunctive, point-of-care tool for melanoma detection.
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  • 文章类型: Journal Article
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  • 文章类型: Case Reports
    口腔黑色素瘤是一种罕见的恶性肿瘤,由正常粘膜或皮肤内的恶性黑色素细胞或黑色素细胞从头发展而呈蓝色,黑色,或者红棕色.与口腔中的任何其他恶性肿瘤相比,口腔粘膜黑色素瘤具有更高的转移倾向和更积极地攻击组织。头颈部的肠黑色素瘤是一种罕见的癌症,应被视为最致命的癌症之一。口腔恶性黑色素瘤仅占所有报道的黑色素瘤的0.2%-8.0%,虽然占所有恶性肿瘤的1.3%。因为大多数黑色素粘膜病变起初是无痛的,诊断有时会延迟到溃疡或生长引起症状。口腔恶性黑色素瘤预后不良,早期发现是有效治疗的关键,也是改善口腔恶性黑色素瘤患者生存和预后的唯一途径。为了避免口腔黑素瘤,在口腔中发现的每一个单一的彩色病变都应该被怀疑和充分的询问,因为彩色病变可能会扩大,应该进行活检以避免中毒。本文展示了口腔诊所在口腔溃疡诊断中的重要性,并认为早期发现对于提高患者预后是必要的。
    Melanoma of the oral cavity is a rare malignant tumor that develops from a malignant melanocytic or de novo from melanocytes within the normal mucosa or skin and appears blue, black, or reddish-brown. Oral mucosal melanoma has a higher proclivity for metastasis and attacks tissue more aggressively than any other malignant tumor in the mouth. Intestinal melanoma of the head and neck is an uncommon type of cancer that should be counted among the deadliest. Malignant melanoma of the oral cavity accounts for only 0.2%-8.0% of all reported melanoma, although accounting for 1.3% of all malignancies. Because most melanotic mucosal lesions are painless at first, the diagnosis is sometimes delayed until the ulcer or growth causes symptoms. Early detection is critical for effective therapy and the only way to improve survival and prognosis in patients with oral malignant melanoma due to its poor prognosis. To avoid oral melanomas, every single colored lesion identified in the oral cavity should be treated with suspicion and adequate inquiry because a colored lesion might expand, and it should be referred for a biopsy to avoid poisoning. This article shows how the oral clinic is important in the diagnosis of oral ulcers and argues that early detection is necessary to enhance patient outcomes.
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