The pathogenesis and clinical significance of xanthelasma palpebrarum

Association Between Xanthelasma Palpebrarum with Cardiovascular Risk and Dyslipidemia: A Case Control Study

PURPOSE

To determine whether xanthelasma palpebrarum (XP) is associated with dyslipidemia, cardiovascular disease (CVD), and other systemic conditions in a large population.

DESIGN

Case-control study conducted at a single tertiary care center.

PARTICIPANTS

Individuals who were examined at a medical screening institute from 2001 through 2020.

METHODS

Medical records were reviewed to extract data on ophthalmic evaluations, blood test results, and systemic diagnoses. Patients identified with XP in at least 1 eye constituted the study group. A control group without XP was established matched by age and sex at a 10:1 ratio to allow robust statistical analysis.

MAIN OUTCOME MEASURES

Associations between XP and dyslipidemia and CVD were determined. Lipid profiles and diagnoses of dyslipidemia and CVD were compared between the case and control groups.

RESULTS

The database included 35 452 individuals, 24 287 of whom were male (69%), with a mean ± standard deviation age of 52.2 ± 12.2 years. The study population included 203 patients with XP (0.6%) and 2030 matched control participants. The prevalence of dyslipidemia diagnosis was similar between the two groups (42% XP vs. 46% controls, P = 0.29), as were the use rates of statins, fibrates, or other cholesterol-lowering medications (48% XP vs. 47% controls, P = 0.88). Lipid profiles were similar between the groups, including total cholesterol (controls median 187 [IQR, 163-211] vs. XP 192 [166-215], P = 0.093), high-density lipoprotein (controls median 48 [IQR, 41-57] vs. XP 47 [42-57], P = 0.65), low-density lipoprotein (controls median 120 [101-141] vs. XP 125 [104-145], P = 0.17), and triglyceride levels (controls median 111 [81-152] vs. XP 105 [81-139], P = 0.16). The rate of CVD was similar as well (10% control group vs. 8.9% XP group; P = 0.56). The prevalences of related conditions, including hypertension, diabetes mellitus, and history of cerebrovascular accident, were similar between groups (24% control group vs. 23% XP group, 14% control group vs. 10% XP group, and 1.3% control group vs. 1% XP group, respectively; P > 0.05).

CONCLUSIONS

Xanthelasma palpebrarum was not associated with increased rates of dyslipidemia or CVD. This questions the extent to which XP serves as an indicative marker for heightened systemic risk.

FINANCIAL DISCLOSURE(S)

The author(s) have no proprietary or commercial interest in any materials discussed in this article.

Examining treatment strategies for xanthelasma palpebrarum: a comprehensive literature review of contemporary modalities

Xanthelasma palpebrarum (XP) is the predominant form of cutaneous xanthoma, as it accounts for greater than 95% of cases. It is characterized by the presence of foam cell clusters containing a large amount of low-density lipoprotein (LDL), which are located in the connective tissue of skin, tendons, and fascia. XP lesions commonly present as distinctive yellow-orange macules, papules, or nodules, and are primarily on the upper eyelids as well as the inner canthus. Women are affected twice as often as men, with lesions typically emerging between the ages of 35 and 55. The pathophysiology of XP involves abnormal lipid metabolism and is often associated with hyperlipidemic states like Type II and IV hyperlipidemia, hypothyroidism, weight gain, and fatty diet. Despite the availability of various treatment methods, current XP management lacks standardization, particularly due to limited comparative research. To address this gap, we conducted an extensive literature review of 45 studies published between 2012 to 2023, which provides an updated overview of current XP treatment modalities. This comprehensive analysis will inform researchers and clinicians on the evolving landscape of XP management.

Genetic insight into putative causes of xanthelasma palpebrarum: a Mendelian randomization study

Xanthelasma palpebrarum (XP) is the most common form of cutaneous xanthoma, with a prevalence of 1.1%~4.4% in the population. However, the cause of XP remains largely unknown. In the present study, we used Mendelian randomization to assess the genetic association between plasma lipids, metabolic traits, and circulating protein with XP, leveraging summary statistics from large genome-wide association studies (GWAS). Genetically predicted plasma cholesterol and LDL-C, but not HDL-C or triglyceride, were significantly associated with XP. Metabolic traits, including BMI, fasting glucose, type 2 diabetes, systolic and diastolic blood pressure, were not significantly associated with XP. Furthermore, we found genetically predicted 12 circulating proteins were associated with XP, including FN1, NTM, FCN2, GOLM1, ICAM5, PDE5A, C5, CLEC11A, CXCL1, CCL2, CCL11, CCL13. In conclusion, this study identified plasma cholesterol, LDL-C, and 12 circulating proteins to be putative causal factors for XP, highlighting the role of plasma cholesterol and inflammatory response in XP development.

Digital Patient Education on Xanthelasma Palpebrarum: A Content Analysis

Patient education has been transformed using digital media and online repositories which disseminate information with greater efficiency. In dermatology, this transformation has allowed for patients to gain education on common cutaneous conditions and improve health literacy. Xanthelasma palpebrarum is one of the most common cutaneous conditions, yet there is a poor understanding of how digital materials affect health literacy on this condition. Our study aimed to address this paucity of literature utilizing Brief DISCERN, Rothwell's Classification of Questions, and six readability calculations. The findings of this study indicate a poor-quality profile (Brief DISCERN < 16) regarding digital materials and readability scores which do not meet grade-level recommendations in the United States. This indicates a need to improve the current body of educational materials used by clinicians for diagnosing and managing xanthelasma palpebrarum.

A Practical Review of the Management of Xanthelasma palpebrarum

Xanthelasma palpebrarum is the most common type of xanthomatous lesion. Various methods for treating Xanthelasma palpebrarum have been reported. We conducted a systematic review to evaluate the efficacy and associated complications of different treatment methods, and we summarized these findings as a practical review designed to be clinically useful, accessible, and impactful.

Methods

The PubMed and Embase databases were searched to identify clinical studies that reported on outcomes and complications of different methods of Xanthelasma treatment. The electronic databases were searched from January 1990 to October 2022. Data on study characteristics, lesion clearance, complications, and recurrences were collected.

Results

Forty-nine articles (including 1329 patients) were reviewed. The studies reported on surgical excision, laser modalities, electrosurgical techniques, chemical peeling, cryotherapy, and intralesional injection. The majority of studies were retrospective (69%) and single-arm (84%). Surgical excision combined with blepharoplasty and skin grafts showed excellent outcomes for large Xanthelasma. CO₂ and erbium yttrium aluminum garnet (Er:YAG) were the most commonly studied lasers and showed more than 75% improvement in over 90% and 80% of patients, respectively. Comparative studies reported better efficacy for CO₂ laser than both Er:YAG laser and 30%-50% trichloroacetic acid. Dyspigmentation was the most encountered complication.

Conclusions

Different methods for the treatment of Xanthelasma palpebrarum have been reported in the literature, with moderate to excellent efficacy and safety profiles depending on the size and location of the lesion. Surgery is more appropriate for larger and deeper lesions, whereas laser and electrosurgical techniques can be used in smaller and more superficial contexts. Only a limited number of comparative studies have been conducted, and novel clinical trials are necessary to further augment appropriate treatment selection.

A Modern Approach to Dyslipidemia

Lipid disorders involving derangements in serum cholesterol, triglycerides, or both are commonly encountered in clinical practice and often have implications for cardiovascular risk and overall health. Recent advances in knowledge, recommendations, and treatment options have necessitated an updated approach to these disorders. Older classification schemes have outlived their usefulness, yielding to an approach based on the primary lipid disturbance identified on a routine lipid panel as a practical starting point. Although monogenic dyslipidemias exist and are important to identify, most individuals with lipid disorders have polygenic predisposition, often in the context of secondary factors such as obesity and type 2 diabetes. With regard to cardiovascular disease, elevated low-density lipoprotein cholesterol is essentially causal, and clinical practice guidelines worldwide have recommended treatment thresholds and targets for this variable. Furthermore, recent studies have established elevated triglycerides as a cardiovascular risk factor, whereas depressed high-density lipoprotein cholesterol now appears less contributory than was previously believed. An updated approach to diagnosis and risk assessment may include measurement of secondary lipid variables such as apolipoprotein B and lipoprotein(a), together with selective use of genetic testing to diagnose rare monogenic dyslipidemias such as familial hypercholesterolemia or familial chylomicronemia syndrome. The ongoing development of new agents-especially antisense RNA and monoclonal antibodies-targeting dyslipidemias will provide additional management options, which in turn motivates discussion on how best to incorporate them into current treatment algorithms.

Clinical association between serum cholesterol level and the size of xanthelasma palpebrarum

Background

Xanthelasma palpebrarum (XP) is a benign periorbital lesion. The relationship between xanthelasma lesion size and serum cholesterol levels has been poorly studied. In this study, we investigated this relationship in the context of the clinical etiology of XP.

Methods

We retrospectively reviewed medical records and pathology reports of all patients treated for XP at our hospital between June 2014 and June 2021; the data were used to analyze lesion size, underlying disease, serum cholesterol, and disease recurrence.

Results

The mean values for patient age, serum cholesterol, and lesion size were 53.0 years, 235.0 mg/dL, and 69.2 mm², respectively. XP mainly occurred in women (64.7%); furthermore, the incidence of XP and lesion size was greatest among patients in their 5th decade of life (41.2%). There was no statistically significant relationship between xanthelasma lesion size and serum cholesterol level.

Conclusion

This study compared lesion size with various clinical features in XP patients. In patients who underwent surgery for XP, serum cholesterol levels tended to be higher than those in the general population. However, the trend between the size of XP and serum cholesterol level was unclear. Therefore, if a patient with XP visits the hospital for surgery, it is recommended to check the lipid profile to confirm underlying dyslipidemia regardless of the size.

Animal experimental research of intralesional bleomycin and pingyangmycin in the treatment of xanthoma

BACKGROUND

Xanthelasma palpebrarum is a type of human xanthoma that occurs on the skin of human eyelids and is a benign skin lesion. Pingyangmycin (also known as bleomycin A5) is one of the 13 components of bleomycin. The aim of this study was to explore the efficacy of intralesional bleomycin and pingyangmycin in the treatment of xanthoma based on histopathological observations in animal experimental research.

METHODS

An animal model of xanthoma was established by feeding rabbits with a high-cholesterol diet. Pingyangmycin and bleomycin interfered with the skin xanthoma of the animal model. Skin tissue specimens were stained with hematoxylin-eosin and oil red O to evaluate the effect of the intervention.

RESULTS

A xanthoma animal model was established. Pingyangmycin and bleomycin could reduce the abnormal lipid deposition in the lesion area of the skin xanthoma of the animal, via a local injection. In addition, pingyangmycin was more effective than bleomycin in eliminating lipid deposition in rabbit skin xanthoma.

Interaction of galectin-7 with HMGCS1 in vitro may facilitate cholesterol deposition in cultured keratinocytes

Three-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) synthase 1 (HMGCS1) was identified to interact with Gal-7, a pro-apoptotic β-galactoside binding protein, by yeast two-hybrid system. Their interaction was confirmed by in vitro β-galactosidase, BIA core and immunoprecipitation assays. Distinct interactive site of HMGCS1was found to reside at Phe-26. The expression of HMGCS1 in cultured keratinocytes was up-regulated by exogenous Gal-7 and down-regulated in Gal-7 siRNA transfected cells. HMGCS1-overexpressing cells were found to induce Gal-7 expression, which suggests that Gal-7 and HMGCS1 expressions are both stimulated by a positive feedback regulation. The amount of cholesterol, a final biosynthetic product of HMGCS1-involved pathway, was increased in Gal-7 treated cells, and was significantly reduced in Gal-7 siRNA transfected cells. The increase of cholesterol level in Gal-7 treated cells was inhibited by wild type HMGCS1 peptide but not by Phe-26 mutated peptide, suggesting that the interaction of Gal-7/HMGCS1 is related to cellular cholesterol level. Foam cells in granulomatous tissues of the specimens from normolipemic cutaneous xanthoma showed positive reactions with the antibodies for Gal-7 and HMGCS1 as well as lipid markers. These results are likely to indicate that Gal-7 induction in epidermal keratinocytes causes both apoptotic cell death and HMGCS1-mediated cholesterol accumulation which will be phagocytized by macrophages. This mechanism may explain the pathogenesis of normolipemic cutaneous xanthoma.

Lower eyelid xanthelasma following hyaluronic acid filler injections to the tear troughs

INTRODUCTION

Adverse effects from dermal fillers are uncommon. We report a case of filler-induced xanthelasma at the bilateral infraorbital region in a 43-year-old woman after multiple injections of hyaluronic acid to correct tear trough depression.

MATERIAL AND METHODS

We report a case of a 43-year-old woman with a chief complaint of skin discoloration of the bilateral lower eyelids. Her history was significant for ten sessions of hyaluronic acid filler for tear trough deformity between December 2008 and May 2016. On clinical examination, she exhibited thin, soft, and yellow papules to her lower medial infraorbital hollows. A punch biopsy showed foamy histiocytes with a background of hypervascularization and focal extracellular lipid in the superficial dermis, consistent with xanthelasma.

RESULTS

Xanthelasma was treated with multiple passes of Er:YAG laser (Sciton Contour TRL) with a 4 mm spot size, fluence 7.5 J/cm2, and ablate/coagulate 50/50 at 6 Hz until clearance occurred. The perilesional skin was treated with 1-2 passes, fluence 7.5 J/cm2, ablate/coagulate 50/0 to blend in the cosmetic unit. Six-month follow-up showed notable improvement of all lesions.

DISCUSSION

There is a paucity of treatments described for filler-induced xanthelasma reaction. While broad conclusions cannot be drawn from one case, our experience indicates that complete resolution can be achieved with Er:YAG ablation. We hypothesize that this laser is an optimal treatment, as it can vaporize the lipid contents while minimizing adverse effects, such as scars and hyperpigmentation.

The value of physical signs in identifying patients with familial hypercholesterolemia in the era of genetic testing

Familial hypercholesterolemia (FH) is a common, inherited disorder of cholesterol metabolism characterized by very high plasma concentrations of low-density lipoprotein cholesterol. It is crucial to diagnose and treat this disorder early since if left untreated it increases the risk for coronary artery disease (CAD) at least by 10-fold. Although genetic testing for FH, when available and affordable, should ideally be offered to most individuals with clinical phenotype suggestive of FH, it is underutilized in most countries. Therefore, FH diagnosis in the majority of cases is made by combining cholesterol levels and clinical characteristics of the patient leaving the need for genetic testing usually in equivocal cases. The presence of some cutaneous and ocular signs can raise the suspicion or even lead to the diagnosis of FH among usually "healthy" individuals. These physical signs comprise cutaneous lesions such as tendon xanthomas or the less specific xanthelasmata and ocular signs, such as corneal arcus in individuals under the age of 45 years. The presence of these signs should prompt the physician to request lipid tests and use clinical scores to diagnose FH. If the diagnosis of FH is likely, aggressive lipid-lowering therapy should be initiated to reduce the risk of CAD and a cascade screening of family members should also be requested.

Clinical efficacy of 1,444nm Nd:YAG laser for xanthelasma palpebrarum

Xanthelasma palpebrarum (XP) does not regress spontaneously and most patients complain of cosmetic discomfort. This study presents the results of treatment of XP using 1,444 nm Nd:YAG laser. We aim to evaluate the clinical efficacy of a 1,444 nm Nd:YAG laser in XP. Twenty-eight patients with XP treated with 1,444 nm Nd:YAG laser were analyzed retrospectively. A physician scored the results based on the reduction of the initial lesion area under six categories. The results were scored as follows: no effect (0% clearing of xanthelasma area), some response (1-24% clearing), moderate response (25-49% clearing), marked response (50-74% clearing), satisfactory result (75-99% clearing), and excellent result (100% clearing). Twelve patients (42.8%) showed excellent clearance and 10 patients (35.7%) had clearance greater than 75%. Overall, 24 patients (85.7%) showed improvement higher than 50%. Half of the patients (14 patients) ended the treatment with satisfactory results with one treatment session. Including seven patients who ended the treatment after two laser sessions, 21 patients (75%) reported satisfactory results and ended the treatment after 1 to 2 laser sessions. XP treatment with 1,444 nm Nd:YAG laser showed promising results. We believe it can be an effective and safe treatment modality for XP.

Clinical and serum lipid profiles and LDLR genetic analysis of xanthelasma palpebrarum with nonfamilial hypercholesterolemia

BACKGROUND

XP is a flat xanthoma that usually presents as bilateral, symmetrical, soft, yellowish papules over the eyelids. The etiology of XP is unknown, but it may be related to complex heterozygous mutations.

AIMS

To investigate the lipid profiles, important clinical characteristics, and low-density lipoprotein receptor (LDLR) gene mutation in the patients suffering from xanthelasma palpebrarum (XP) with nonfamilial hypercholesterolemia.

PATIENTS/METHODS

The prospective study included 25 individuals of XP with nonfamilial hypercholesterolemia, and 30 controls neither with XP nor familial hypercholesterolemia (FH). Each one underwent detailed clinical examination, serum lipid profile, and LDLR gene detection at the 400th exon and the 1246th exon.

RESULTS

In our study, patients with XP were often not present with FH and family history. The mean serum cholesterol (CHOL) (5.20 ± 1.82) and the prevalence of carotid atherosclerosis (4.34 ± 0.78) were significantly higher in study group, while there was no statistically significant difference between two groups in terms of triglyceride (TG) (P = .38) and low-density lipoprotein (LDL) (P = .23). Unusually, the mean levels of high-density lipoprotein (HDL) (1.59 ± 0.31) in the study group were much higher than the controls (1.31 ± 0.30), and the LDLR gene mutation was not found.

CONCLUSION

Clinical and serum lipid profiles indicated that XP was sporadic and underlying lipid abnormalities especially higher HDL. XP did not occur with mutations in the LDLR gene at the two exons. We suggested too high HDL level may be contributed to pathogenesis of XP and XP is often not associated with FH.

Xanthelasma Palpebrarum: More than Meets the Eye

Xanthelasma palpebrarum (XP) is the most common form of cutaneous xanthomata, and is important aesthetically, because of its close relation to the eyes, as well as medically for its association with cardiovascular disease (CVD). To provide avant-garde review discussing the various aspects of XP, including its aetio-pathogenesis and various treatment modalities. A structured Pubmed and Medline were searched for relevant articles. The finding of recent research has strongly espoused the link between XP and CVD, and mechanisms have been suggested for its formation. The new technologies have led to a multitude of treatment options for XP. XP is a multi-faceted entity; other than simple treatment of the cosmetic aspect of the disease, one must be cognizant of its cardiovascular implications.

Relationship Between Xanthelasma Palpebrarum and Hyperlipidemia

BACKGROUND

Xanthelasma palpebrarum is a common periorbital lesion that occurs in middle-aged woman. Dyslipidemia was strongly associated with the occurrence of xanthelasma. Different treatment methods for xanthelasma were applied with comparable results.

MATERIALS AND METHODS

This was a retrospective chart review series performed at a single institute. The surgical pathology of 69 patients who received surgical excision from 1994 to 2012 was obtained. In addition, International Classification of Diseases, Ninth Revision, Clinical Modification code of xanthelasma (374.51) of 44 patients who underwent nonsurgical treatment at an outpatient department was acquired from 2006 to 2012. The serum lipid levels, comorbidities, recurrence, and treatment methods were obtained and analyzed with Statistical Analysis System (SAS) 9.4.

RESULTS

Of a total of 113 identified patients, 50 had lipid profile data. Of these 50 patients, 25 (50%) had dyslipidemia, which is higher than general population in Taiwan. The recurrence rate was 17.5%, and there was no statistical difference in the recurrence rate between the different treatment methods.

CONCLUSIONS

Xanthelasma was found to be associated with dyslipidemia. Thus, we recommend patients with xanthelasma to check their lipid profile and receive diet control and lipid-lowering medications for lipid abnormalities.

CO2 Laser Treatment of Xanthelasma Palpebrarum in Skin Types III-IV: Efficacy and Complications After 9-Month Follow-Up

Objective: Ultrapulse CO₂ laser has been used for several decades for removal of xanthelasma lesions. However, most studies to date have focused on Caucasian patients (skin types I-II). We sought to assess the efficacy and complications of CO₂ laser therapy for xanthelasma palpebrarum (XP) in Chinese patients (skin types III-IV). Methods: Data of 38 patients with xanthelasma who received CO₂ laser treatment between December 2013 and January 2016 at our hospital were retrospectively analyzed. Patients were followed up for 9 months. Results: Recurrence occurred in 19/38 (50%) patients. Recurrence was significantly more common in patients with multiple lesions (15/24; 62.5%) than in patients with single lesions (4/14; 28.6%). At 3 months after treatment, the complication rate was 63.16%. The complications included hypopigmentation (23/24; 95.8%) and scarring (1/24; 4.2%). In all patients, the hypopigmentation had disappeared by end of the 9-month follow-up. Conclusions: Ultrapulse CO₂ laser appears to be capable of completely removing XP in patients with medium skin type III-IV. The most common complication is hypopigmentation, but this resolves with time.

A case of intramuscular xanthelasma palpebrarum found during blepharoplasty

Xanthelasma palpebrarum is the most common cutaneous xanthoma found on the medial side of the eyelid. The typical lesion is usually a flat and yellowish plaque on the skin. However, we report on a unique case of intramuscular xanthoma found during blepharoplasty for the correction of ptosis. A 53-year-old male patient visited our department with a complaint of a ptotic eyelid. He was concerned about the cosmetic appearance and the uncomfortable feeling while opening his eyes, and wanted these problems to be solved. A yellowish plaque of about 0.3 × 0.3 cm in size was found in the orbicularis oculi muscle during the surgery. The lesion was excised and xanthelasma was confirmed with biopsy. We have found this specific case of xanthelasma palpebrarum in the only muscle. Therefore, a careful approach to clinical and histologic examination and imaging is required for patients with these lesions.

The Significance of Extracellular Cholesterol Crystals or a Cholesterol Granuloma in Xanthelasma

Background/Aims

Xanthelasma is an unreliable indicator of systemic hyperlipidemia. A review in search of unusual histopathologic features of cellular composition that might correlate with systemic hyperlipidemia was conducted.

Methods

An observational case series of 3 cases was performed. Slides were stained and analyzed with hematoxylin and eosin, Masson trichrome, and periodic acid-Schiff as well as for iron. Three lesions displayed an atypical morphologic finding and were subjected to immunohistochemical analysis for CD3, CD20, CD68, CD163, S100, and adipophilin.

Results

The three lesions comprised in this study had classical xanthoma cells with densely packed fine vacuoles. The xanthoma cells were CD68, CD163, and adipophilin positive and S100 negative. In case 1, extracellular, nonpolarizing cholesterol crystalloids displayed totally negative staining for all biomarkers. In cases 2 and 3, the cholesterol granulomas were surrounded and permeated by CD68- or CD163-positive epithelioid and giant cells and by CD3-positive T lymphocytes. The 3 cases each harbored squamous cysts.

Conclusion

In case 1, the uninflamed extracellular cholesterol crystalloids were associated with severely dysregulated systemic hyperlipidemia. In cases 2 and 3, the cholesterol granulomas were interpreted as a local manifestation of a cyst that might have partially ruptured and did not portend serious hyperlipidemia.

Xanthelasma: An Update on Treatment Modalities

Xanthelasmas are localized accumulation of lipid deposits on the eyelids. Lesions are typically asymptomatic and treatment is often sought for cosmetic purposes. Unfortunately, there is paucity of strong evidence in the literature for the effective treatment of normolipidemic xanthelasmas. A literature search using the term “xanthelasma” was carried out in PubMed and Medline databases. Only articles related to treatment were considered and analyzed for their data. Commonly cited treatments include topical trichloroacetic acid, liquid nitrogen cryotherapy, and various lasers including carbon dioxide, Er:YAG, Q-switched Nd:YAG, and pulse dye laser. However, traditional surgical excision has also been used. This article reviews these currently accepted modalities of treatment.

Effect of a high-cholesterol diet on lipoprotein metabolism and xanthoma formation in rabbits

BACKGROUND

Xanthelasma is the most common type of cutaneous xanthoma and often occurs on the eyelids. Xanthoma has been reported to be highly correlated with abnormal lipoprotein metabolism.

AIMS

In this study, we wanted to investigate the effects of a high-cholesterol diet on xanthoma formation and lipoprotein metabolism in rabbits.

METHODS

In animals fed with high-cholesterol diet, deteced plasma lipid [ie, total cholesterol (TC), triglycerides (TG), and low-density lipoprotein cholesterol (L-DLC)] levels and pathology of xanthoma.

RESULTS

Plasma lipid levels were dramatically elevated within 8 weeks. In addition, high dietary cholesterol promoted xanthoma formation on the napex. Microscopic examination showed that foam cells laden with cholesterol deposits accumulated around the dermal capillaries and cutaneous appendages within the skin of the napex.

CONCLUSION

These findings indicate a critical role for a high-cholesterol diet in the dysregulation of lipoprotein metabolism and the development of xanthoma in rabbits. The results suggest that abnormal lipid metabolism may increase the occurrence of xanthoma.

The clinical spectrum of xanthomatous lesions of the eyelids

Yellowish papules, nodules, or plaques, namely "xanthomatous" lesions, may be seen on the eyelids in the course of various disorders. The prototype is "xanthelasma palpebrarum" (XP) that is localized only to the eyelids and may be associated with hyperlipidemia. On the other hand, different types of normolipemic disorders may also cause xanthomatous eyelid lesions. Among these, Langerhans cell histiocytosis, diffuse normolipemic xanthoma, and non-Langerhans cell histiocytoses (papular xanthoma, juvenile xanthogranuloma, xanthoma disseminatum, adult-onset xanthogranuloma, adult-onset asthma and periocular xanthogranuloma, necrobiotic xanthogranuloma, Erdheim-Chester disease, Rosai-Dorfman disease, and reticulohistiocytosis) can be listed. The eyelid findings of this heterogeneous group of disorders are challenging to differentiate from each other due to common clinical aspects that may even sometimes mimic XP. Nodularity, induration, ulceration, diffuse eyelid involvement, and extension from eyelids to the neighboring skin may represent the clinical features of xanthomatous lesions other than XP. It is necessary to obtain a thorough history and exclude XP and then perform detailed dermatological and systemic examination, biopsy for histopathologic confirmation, and appropriate specific imaging screens. As some of the conditions may be associated with other systemic disorders, especially malignancies, the differentiation of xanthomatous eyelid lesions has a critical importance, and clinical signs can be guiding.

Inflammatory Mediators in Xanthelasma Palpebrarum: Histopathologic and Immunohistochemical Study

PURPOSE

To evaluate the expression of inflammatory mediators in xanthelasma palpebrarum.

METHODS

In this retrospective histopathologic case-control study, xanthelasma specimens obtained from the private practice and pathology archives of 1 author (R.Z.S.) were analyzed and compared with the blepharoplasty tissues from age- and sex-matched controls. Paraffin-embedded tissue sections were stained with hematoxylin-eosin and CD3, CD20, CD163, cyclooxygenase-1, inducible nitric oxide synthase, matrix metallopeptidase-9, and myeloperoxidase antibodies. Immunostaining was quantified by light microscopy and with a computerized image analysis system of scanned images.

RESULTS

Hematoxylin-eosin-stained preparations of xanthelasma specimens demonstrated significantly more intense chronic lymphocytic infiltrate when compared with the control blepharoplasty tissues (p < 0.001). Immunohistochemical studies revealed more intense CD3+ T cell and CD163+ histiocytic infiltrate (11% vs. 5%; p = 0.02 and 28% vs. 5%; p = 0.003, respectively) and increased expression of cyclooxygenase-1 (44% vs. 20% expressing cells; p < 0.001 and 21% vs. 9% strongly expressing cells; p = 0.008) and inducible nitric oxide synthase (43% vs. 26% expressing cells; p = 0.03 and 42% vs. 25% strongly expressing cells; p = 0.02) in xanthelasma specimens compared with control tissues.

CONCLUSIONS

The inflammatory milieu in xanthelasma appears to be analogous to descriptions of the early stages of cardiac atherosclerotic plaque formation. These findings may contribute to the understanding of xanthelasma pathogenesis and to the development of potential targeted therapies.

Bilateral extensive nodular xanthelasma palpebrarum: an infrequent case report

PURPOSE

To report a rare case of extensive bilateral xanthelasma palpebrarum (XP). A 70-year-old man presented with nodular lesions of his eyelids for 12 years. The skin changes began with his left lower eyelid and progressively spread to both lateral-inferior and infero-medial periorbital areas. The lesions were yellow nodules that were hard, extensive, multiple and coalescent.

METHOD

The tumors of this patient's eyelids underwent resection and tissue was processed for light microscopic examination.

RESULT

Under light microscopy, many foamy xanthoma cells were found in the dermis, often nested around capillaries. Touton giant cell were also be observed, and tissue fibrous hyperplasia was obvious. The pathological changes were seen in the orbicularis oculi muscle, where many foamy xanthoma cells were seen between the muscle fibers.

CONCLUSION

XP is the most common cutaneous xanthoma and typically presents in the middle-aged and elderly. This presentation of XP is notable because of its extent. The light microscopic appearance confirmed the diagnosis of XP. Surgical intervention provided substantial cosmesis.

Erbium:yttrium aluminum garnet laser versus Q-switched neodymium:yttrium aluminum garnet laser for the treatment of xanthelasma palpebrarum

BACKGROUND

Several lasers have been used for the treatment of xanthelasma palpebrarum (XP), such as Q-switched neodymium:yttrium aluminum garnet (QSNd:YAG) and erbium:yttrium aluminum garnet (Er:YAG) laser. Up to now, a comparative study among these laser options in the treatment of XP has not been reported.

OBJECTIVE

The aim of this study was to compare the clinical efficacy and response rates of QSNd:YAG and Er:YAG in the treatment of XP.

METHODS

Sixty patients with a total of 102 XP lesions were randomly and equally divided into two groups. The first group was treated with QSNd:YAG at a fluence of 10 joule/cm², 10 Hz and 2 mm spot size, and the second group was treated with Er:YAG at 200-300 millijoule, 4 Hz and 2 mm spot size.

RESULTS

In the Er:YAG group, the percentage of patients who required 3 or 4 sessions and wound healing time were higher compared to those of the QSNd:YAG group. Furthermore, the percentage of patients who had an improvement score of 4 was higher in the Er:YAG than that in the QSNd:YAG group.

CONCLUSION

Er:YAG is an efficient, successful and minimally invasive method without long-lasting adverse effects.

Serum lipid profile and clinical characteristics of patients with xanthelasma palpebrarum

BACKGROUND

Although many factors are involved in the etiology of xanthelasma palpebrum, lipid disorder is strongly associated with its induction. Xanthelasma palpebrum, the most common type of xanthoma, usually presents in middle-aged females and results in aesthetic problems.

OBJECTIVE

To evaluate thelipid profile and important clinical aspects of xanthelasma palpebrum patients.

METHODS

In this descriptive study, we enrolled 42xanthelasma palpebrumpatients, and 42 cases of non-inflammatory skin disorders as thecontrol group, matched for age and gender.The clinical characteristics of the patients and fasting serum lipid profile were recorded for both groups. The data obtained were analyzed using SPSS-16.

RESULTS

Xanthelasma palpebrum was found more commonly in middle-aged females with disease onset of less than 1 year, and without significant familial history of xanthoma. Furthermore,xanthelasma lesionswere most often seen in the upper lid with mild extension and was rarely associated with systemic disease. There was no statistically significant difference between two groups regarding hypertriglyceridemia (p= 0.231) and hypercholesterolemia (p= 0.302). The mean serum levels of cholesterol (221.51±60.4 mg/dl), triglyceride (185.98±71.1 mg/dl) and VLDL (37.7±17.6 mg/dl) were significantly higher and themedian HDL (36.2 (31, 41) mg/dl) level was lower in thepatient group.

CONCLUSION

In our study, hypercholesterolemia and hypertriglyceridemia did not reveal a significant difference between thepatient and control groups; however, mean serum values for cholesterol, triglyceride, VLDL and HDL showed a significant difference between the two groups. Therefore, in addition to lipid abnormality, other factors could be involved in the pathogenesis of xanthelasma palpebrum.

Cutaneous manifestations of Erdheim-Chester disease (ECD): Clinical, pathological, and molecular features in a monocentric series of 40 patients

BACKGROUND

Erdheim-Chester disease (ECD) is a rare form of non-Langerhans cell histiocytosis with possible cutaneous-specific involvement.

OBJECTIVES

We sought to describe the clinical, pathological, and molecular features of the cutaneous manifestations of 40 patients with ECD identified from a cohort of 123 patients.

METHODS

Confirmed cases of patients with ECD were included in a single-center retrospective observational study. Clinical and pathological cutaneous features were analyzed and BRAF(V600E) mutation was determined.

RESULTS

The most frequent ECD cutaneous manifestations were xanthelasma-like lesions (XLL), which occurred in 31 (25%) patients. Other ECD cutaneous lesions were patches or papulonodular lesions. Mixed form of ECD and cutaneous Langerhans cell histiocytosis presented with crusty papules of the folds in some patients. Compared with classic xanthelasma palpebrarum, ECD XLL pathology more frequently involved the reticular dermis, displayed more multinucleated or Touton cells, and showed less extensive fibrosis. BRAF(V600E) mutation was more frequently detected in patients with cutaneous involvement than in those without (76% vs 52%; P = .005) and constantly found in 10 XLL.

LIMITATIONS

Some clinical data were not available because of the retrospective design of the study.

CONCLUSIONS

XLL are the most frequent cutaneous ECD manifestations and might be targeted both for pathology and determination of BRAF mutational status.

Visible aging signs as risk markers for ischemic heart disease: Epidemiology, pathogenesis and clinical implications

Association of common aging signs (i.e., male pattern baldness, hair graying, and facial wrinkles) as well as other age-related appearance factors (i.e., arcus corneae, xanthelasmata, and earlobe crease) with increased risk of ischemic heart disease was initially described in anecdotal reports from clinicians observing trends in the physical appearance of patients with ischemic heart disease. Following these early observations numerous epidemiological studies have reported these associations. Since the prevalences of both visible aging signs and ischemic heart disease have a strong correlation with increasing age, it has been extensively debated whether the observed associations could be entirely explained by a common association with age. Furthermore, the etiologies of the visible aging signs are rarely fully understood, and pathophysiological explanations for these associations remain controversial, and are mostly speculative. As a consequence of inconsistent findings and lack of mechanistic explanations for the observed associations with ischemic heart disease, consensus on the clinical importance of these visible aging signs has been lacking. The aim of this review is for each of the visible aging signs to (i) review the etiology, (ii) to discuss the current epidemiological evidence for an association with risk of ischemic heart disease, and (iii) to present possible pathophysiological explanations for these associations. Finally this review discusses the potential clinical implications of these findings.

Comparative Study to Evaluate the Efficacy of Radiofrequency Ablation versus Trichloroacetic Acid in the Treatment of Xanthelasma Palpebrarum

Background:

Xanthelasma palpebrarum (XP) is a metabolic disorder involving the eyelids. Radiofrequency(RF) surgery and trichloroacetic acid (TCA) applications have been listed among the procedures for XP, but comparative studies are not available.

Aim:

To compare the efficacy of radiofrequency surgery versus trichloroacetic acid application in the treatment of XP.

Settings and Design:

20 consecutive cases of XP attending dermatology, medicine and endocrinology out-patient departments of M.S. Ramaiah teaching hospital were enrolled for the study. It was an open-label clinical trial conducted in our hospital for a duration of 1 year.

Materials and Methods:

20 consecutive patients conforming to inclusion criteria were selected for the study. For each patient, lesions were treated with radiofrequency ablation on one side and TCA application on the other side.

Results:

RF ablation was done for 12 patients over right eye lesions and 8 patients over the left eye lesions. TCA applications were done for 8 patients over right eye lesions and 12 patients over left eye lesions. 70% of lesions treated with RF ablation had a score of improvement of 4 and 70% of lesions treated with TCA application had a score of improvement of 4, at 4 weeks of follow-up. At four weeks of follow-up 40% in RF group and 15% in TCA group had scarring and 45% in RF group and 30% in TCA group had pigmentation.

Conclusion:

RF ablation as compared to TCA application, required fewer sessions for achieving more than 75% clearance of lesions. However, TCA applications were associated with fewer complications comparatively.

Study of molecule variations in human xanthelasma skin based on confocal micro-raman spectroscopy

Confocal micro-Raman spectroscopy was used to distinguish human xanthelasma skin (HXS) from the human normal skin (HNS). Results showed that intensive Raman peaks at 1,269, 1,336, 1,448, and 1,656 cm(-1) increased obviously. Both 1,269 and 1,656 cm(-1) peaks showed that the proteins in HXS were mostly in the anti-parallel ß sheet conformation. While the intensities of bands at 1,032, 1,087, 1,300, and 1,448 cm(-1) belonged to lipids were enhanced in HXS spectrum compared to those in HNS spectrum. There were main intercellular lipids alkyl chains with minor proteins contribution at 1,087 cm(-1) and phenylalanine at 1,032 cm(-1) . To quantitative analysis of the difference, the ratio of I852/I829 was calculated, which was 1:1.04 ± 0.04 and 1:1.11 ± 0.02 for HNS and HXS (p < 0.01), respectively. The data indicated that some tyrosine residues, which form a hydrogen bond with H2 O prior to aggregation, were captured by strong hydrogen-bond acceptors in the aggregate. The decreased ratio of I852/I829 indicated more hydrophobic in HXS than HNS. Principal component analysis showed a one-to-one relationship between human xanthelasma skin and the corresponding Raman spectra. It could be given useful help for the diagnostication of xanthelasma.

Laser treatment of giant xanthelasma palpebrarum

Xanthelasma palpebrarum is the most common cutaneous xanthoma. It typically presents in middle-aged and older adults, most often around the eyelids. The diagnosis is made clinically. Giant xanthelasmas palpebrarum are xanthelasmas that extensively affect the superior and inferior bilateral eyelids. Many techniques have been put forward for treating these lesions (surgical, laser, and chemical techniques), but we describe our experience in the treatment of giant xanthelasmas by ultrapulsed CO2 laser. Between 2009 and 2012, in the Division of Plastic and Reconstructive Surgery at the University of Palermo, 12 patients with giant xanthelasmas were treated using a CO2 laser. The laser parameters are as follows: frequency 20 Hz, energy 75 mJ, and power 1.5 W. Each laser session lasts 15 min; the treatment consists of three or four sessions that are carried out at intervals of 15 days. Patients were followed up after 2, 6, and 12 months. This technique is rapid and it is accepted very well by patients. The only disadvantage is a long healing time (10-15 days). The ultrapulsed CO2 laser, in experienced hands, is an excellent device that enables the complete removal of giant xanthelasmas with a minimally invasive but very effective technique.

Visible Age-Related Signs and Risk of Ischemic Heart Disease in the General Population

Background—

Cardiovascular disease is 1 of the most common age-related diseases, and also 1 of the most common causes of death in the general population. We tested the hypothesis that visible age-related signs associate with risk of ischemic heart disease (IHD), myocardial infarction (MI), and death in the general population, independent of chronological age.

Methods and Results—

10,885 individuals aged 20 to 93 years free of IHD were followed from 1976 through 1978 until June 2011 with 100% complete follow-up. During these 35 years of follow-up, 3401 participants developed IHD and 1708 developed MI. Presence of frontoparietal baldness, crown top baldness, earlobe crease, and xanthelasmata was associated with increased risk of IHD or MI after multifactorial adjustment for chronological age and well-known cardiovascular risk factors. The risk of IHD and MI increased stepwise with increasing number of age-related signs with multifactorially adjusted hazard ratios up to 1.40 (95% confidence interval, 1.20–1.62) for IHD and 1.57 (1.28–1.93) for MI, in individuals with 3 to 4 versus no age-related signs at baseline ( P for trend <0.001). In all age groups in both women and men, absolute 10-year risk of IHD and MI increased with increasing number of visible age-related signs.

Conclusions—

Male pattern baldness, earlobe crease, and xanthelasmata—alone or in combination—associate with increased risk of ischemic heart disease and myocardial infarction independent of chronological age and other well-known cardiovascular risk factors. This is the first prospective study to show that looking old for your age is a marker of poor cardiovascular health.

Treatment of large xanthelasma palpebrarums with full-thickness skin grafts obtained by blepharoplasty

PURPOSE

The treatment of large xanthelasma palpebrarum cases in patients whose lesions could not be closed primarily is reported. All lesions were repaired with full-thickness skin grafts obtained by blepharoplasty of the same upper eyelid. Patient satisfaction, complications, and recurrence rates were investigated.

METHODS

Sixteen patients were treated between 2007 and 2012. Bilateral upper eyelids were involved in all patients. Twenty-six large xanthelasma palpebrarum lesions were treated using this method. All lesions were located in the medial canthus of the upper eyelid.

RESULTS

The patients were followed up for 6 months to 5 years (mean 3 years). No patients developed complications or required revision surgery. All patients had normally positioned upper eyelids and were satisfied with the aesthetic outcome. Two patients had mild hyperpigmentation at the graft site.

CONCLUSIONS

The results of this study suggest that large xanthelasma palpebrarum defects that are not primarily closed after excision should be repaired with full-thickness skin grafts harvested from the lateral aspect of the same upper eyelid. Moreover, good patient satisfaction can be achieved when blepharoplasty of the upper eyelid is performed concurrently in patients who are middle-aged or older.

Outcomes of surgical management of xanthelasma palpebrarum

Background

Xanthelasma palpebrarum (XP) is a benign disorder manifesting as yellowish cholesterol-laden plaques on the eyelids. This paper presents the outcomes in patients with XP who have undergone surgical excision as the main modality of treatment.

Methods

A retrospective review of patients who received surgery for xanthelasma palpebrarum from March 2007 to March 2011 was conducted. Patients were classified into four grades according to the location and extent of the lesion, with grade I being the mildest and grade IV being the most diffuse. Simple excision was performed in grade I and II lesions, while local flaps and skin grafts were performed in the more advanced grades.

Results

Ninety-five cases from March 2007 to March 2011 were included in this study. 66 cases (70%), were treated by simple excision. Twenty-four cases (25%) and 5 cases (5%) were treated by simple excision in combination with or without local flaps and skin grafts. In approximately 1/4 of the patients, orbicularis oris muscle involvement was observed. 4 patients (4.2%) developed scar contracture postoperatively, which required a secondary procedure. Recurrence was reported in 3 patients (3.1%). Otherwise. There were no other reports of major complications or disfigurement.

Conclusions

We found that for lesions involving the deep dermis and/or muscle, surgical excision was the most appropriate therapeutic option.

Xanthelasma Palpebrarum-clinical and biochemical profile in a tertiary care hospital of Delhi

Xanthelasma Palpebrarum is the most common of the xanthomas with asymptomatic, symmetrical, bilateral, soft, yellow, velvety, polygonal papules around the eyelids. Xanthelasmas may be associated with hyperlipidemia. This prospective study included 66 clinically diagnosed patients with Xanthelasma Palpebrarum and 50 controls with non-inflammatory skin disorders. Serum triglyceride, cholesterol, HDL, LDL and VLDL estimated in all cases indicated that patients with Xanthelasma Palpebrarum have underlying lipid abnormalities.

Xanthelasmata, arcus corneae, and ischaemic vascular disease and death in general population: prospective cohort study

OBJECTIVE

To test the hypothesis that xanthelasmata and arcus corneae, individually and combined, predict risk of ischaemic vascular disease and death in the general population.

DESIGN

Prospective population based cohort study.

SETTING

The Copenhagen City Heart Study.

PARTICIPANTS

12,745 people aged 20-93 years free of ischaemic vascular disease at baseline and followed from 1976-8 until May 2009 with 100% complete follow-up.

MAIN OUTCOME MEASURES

Hazard ratios for myocardial infarction, ischaemic heart disease, ischaemic stroke, ischaemic cerebrovascular disease, and death; odds ratios for severe atherosclerosis.

RESULTS

563 (4.4%) of participants had xanthelasmata and 3159 (24.8%) had arcus corneae at baseline. During 33 years' follow-up (mean 22 years), 1872 developed myocardial infarction, 3699 developed ischaemic heart disease, 1498 developed ischaemic stroke, 1815 developed ischaemic cerebrovascular disease, and 8507 died. Multifactorially adjusted hazard/odds ratios for people with versus those without xanthelasmata were 1.48 (95% confidence interval 1.23 to 1.79) for myocardial infarction, 1.39 (1.20 to 1.60) for ischaemic heart disease, 0.94 (0.73 to 1.21) for ischaemic stroke, 0.91 (0.72 to 1.15) for ischaemic cerebrovascular disease, 1.69 (1.03 to 2.79) for severe atherosclerosis, and 1.14 (1.04 to 1.26) for death. The corresponding hazard/odds ratios for people with versus those without arcus corneae were non-significant. In people with versus those without both xanthelasmata and arcus corneae, hazard/odds ratios were 1.47 (1.09 to 1.99) for myocardial infarction, 1.56 (1.25 to 1.94) for ischaemic heart disease, 0.87 (0.57 to 1.31) for ischaemic stroke, 0.86 (0.58 to 1.26) for ischaemic cerebrovascular disease, 2.75 (0.75 to 10.1) for severe atherosclerosis, and 1.09 (0.93 to 1.28) for death. In all age groups in both women and men, absolute 10 year risk of myocardial infarction, ischaemic heart disease, and death increased in the presence of xanthelasmata. The highest absolute 10 year risks of ischaemic heart disease of 53% and 41% were found in men aged 70-79 years with and without xanthelasmata. Corresponding values in women were 35% and 27%.

CONCLUSION

Xanthelasmata predict risk of myocardial infarction, ischaemic heart disease, severe atherosclerosis, and death in the general population, independently of well known cardiovascular risk factors, including plasma cholesterol and triglyceride concentrations. In contrast, arcus corneae is not an important independent predictor of risk.

Xanthelasma palpebrarum treatment with a 1,450-nm-diode laser

BACKGROUND

Various treatments of xanthelasma palpebrarum have been studied, including surgical excision, treatment with chemicals, and ablative laser therapy, but these methods have some disadvantages. Recently, nonablative laser therapy has been proposed as a treatment for xanthelasma palpebrarum.

OBJECTIVE

To investigate the efficacy and safety of a 1,450-nm-diode laser in the treatment of xanthelasma.

MATERIALS AND METHODS

Sixteen patients were treated using a 1,450-nm-diode laser. Fluences of 12 J/cm(2) , a 6-mm spot size, and a dynamic cooling device setting of 20 to 30 ms were used. One to four treatments 4 to 6 weeks apart were given to each patient. Photographs were taken before each treatment session and 4 to 6 weeks after the last treatment.

RESULTS

Two (12.5%), eight (50%), and four (25%) of the 16 patients were scored as having some (20-40% clearing), moderate (40-60% clearing), and marked (60-80% clearing) improvement, respectively. Focal mild transient hyperpigmentation was noted in five patients. Post-treatment local swelling lasted 3 to 4 days.

CONCLUSION

The 1,450-nm-diode laser treatment is a new, valuable treatment option for xanthelasma palpebrarum, offering relatively mild side effects. Studies including long term follow up and a comparison with alternative treatment modalities are necessary to further assess the clinical utility of this treatment. The authors have indicated no significant interest with commercial supporters.

[Xanthelasma and juvenile xanthogranuloma in a 7-year-old boy]

BACKGROUND

Palpebrum xanthelasma is the most common type of xanthoma seen in adults but it is extremely rare in children. We report an original case of bilateral xanthelasma palpebrarum associated with juvenile xanthogranuloma (JXG) in a 7-year-old child. Only two cases of xanthelasma in children have been described to date. The association of xanthelasma and JXG has never been described.

PATIENTS AND METHODS

A 7-year-old boy presented xanthelasmas on both eyelids. At the same time, pinkish JXG papules appeared on the child's trunk. The boy had been diagnosed at the age of 10 months with myelogenous leukaemia, which was in remission. He also had a familial history of hypercholesterolaemia. The skin lesions were removed and microscopic examination confirmed the diagnosis of xanthelasmas and JXG.

DISCUSSION

This patient's presentation is unusual in several respects: the presence of xanthelasma in a child, appearance of JXG at an advanced age, and the association of these two diseases in a child with a past history of leukaemia. The occurrence of these skin lesions did not appear to be linked to the history of malignant blood disease in this patient.