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Lipedema is a clinical entity frequently misdiagnosed or confounded with primary lymphedema. Lipedema is an adipose tissue disorder, also pathological itself, that occurs almost exclusively in obese women. It is characterized by bilateral enlargement from hip to ankle due to abnormal deposits of subcutaneous fat, usually sparing the feet. This disease usually occurs at or just after puberty. Patients may complain of pain, easy bruising of the affected areas with moderate to severe sensitivity to digital pressure or pinching, and mild edema after orthostatism. Lipedema results in considerable frustration and distress resulting from the cosmetic appearance. Imaging studies using computed tomography, magnetic resonance imaging, and lymphoscintigraphy are not indicated, except if the diagnosis is atypical or doubtful or to confirm lipedema. Long-term evolution may alter lymphatic system and lead to a lipo-lymphedema, then involving the foot, with specific complications such as cellulitis. Lipedema management is not codified and includes weight loss (which poorly improves leg appearance or discomfort), psychological counselling, compression therapy often poorly tolerated and physical activity, particularly aquatic. Liposuction using tumescent local anesthesia, may reduce edema, spontaneous pain, sensitivity to pressure, bruising and may improve appearance resulting in a notable improvement of quality of life. Clinical and physiopathological studies are still required to enable improved management of women having lipedema.

An endothelial cell monolayer separates interstitia from blood and lymph, and determines the bidirectional transfer of solutes and macromolecules across these biological spaces. We review advances in transport modalities across these endothelial barriers. Glucose is a major fuel for the brain and peripheral tissues, and insulin acts on both central and peripheral tissues to promote whole-body metabolic signalling and anabolic activity. Blood-brain barrier endothelial cells display stringent tight junctions and lack pinocytic activity. Delivery of blood glucose and insulin to the brain occurs through their respective carrier (Glucose transporter 1) and receptor (insulin receptor), enacting bona fide transcytosis. At supraphysiological concentrations, insulin is also likely transferred by fluid phase cellular uptake and paracellular transport, especially in peripheral microvascular endothelia. The lymphatic microvasculature also transports insulin but in this case from tissues to lymph and therefrom to blood. This serves to end the hormone's action and to absorb highly concentrated subcutaneously injected insulin in diabetic individuals. The former function may involve receptor-mediated transcytosis into lymphatic endothelial cells, the latter fluid phase uptake and paracellular transport. Lymphatic capillaries also mediate carrierdependent transport of other nutrients and macromolecules. These findings challenge the notion that lymphatic capillaries only transport macromolecules through intercellular flaps.

Lipedema is a fat disorder that is often misdiagnosed. It was first identified at the Mayo Clinic in 1940, but medical schools do not include it in their curriculum and is therefore poorly understood. It presents as disproportionate and symmetrical accumulations of fat (bilateral), which is often accompanied by orthostatic edema. Early diagnosis and treatment are crucial, as the disease is progressive and can lead to immobility as well as a significant decrease in the quality of life. Lipedema differs from obesity because it does not respond to diet and exercise. This article gives you a glimpse into what lipedema is about and will help you identify some differences between lipedema and lymphedema. It will also help you identify which surgical procedures have been successful in treating the disease.

The purpose of this work was to quantify 3.0 T (i) T(1) and T(2) relaxation times of in vivo human lymph nodes (LNs) and (ii) LN relaxometry differences between healthy LNs and LNs from patients with lymphatic insufficiency secondary to breast cancer treatment-related lymphedema (BCRL). MR relaxometry was performed over bilateral axillary regions at 3.0 T in healthy female controls (105 LNs from 20 participants) and patients with BCRL (108 LNs from 20 participants). Quantitative T(1) maps were calculated using a multi-flip-angle (20, 40, 60°) method with B(1) correction (dual-T(R) method, T(R1) /T(R2)  = 30/130 ms), and T(2) maps using a multi-echo (T(E)  = 9-189 ms; 12 ms intervals) method. T(1) and T(2) were quantified in the LN cortex and hilum. A Mann-Whitney U-test was applied to compare LN relaxometry values between patients and controls (significance, two sided, p < 0.05). Linear regression was applied to evaluate how LN relaxometry varied with age, BMI, and clinical indicators of disease. LN substructure relaxation times (mean ± standard deviation) in healthy controls were T(1) cortex, 1435 ± 391 ms; T(1) hilum, 714 ± 123 ms; T(2) cortex, 102 ± 12 ms, and T(2) hilum, 119 ± 21 ms. T(1) of the LN cortex was significantly reduced in the contralateral axilla of BCRL patients compared with the axilla on the surgical side (p < 0.001) and compared with bilateral control values (p < 0.01). The LN cortex T(1) asymmetry discriminated cases from controls (p = 0.004) in a multiple linear regression, accounting for age and BMI. Human 3.0 T T(1) and T(2) relaxation times in axillary LNs were quantified for the first time in vivo. Measured values are relevant for optimizing acquisition parameters in anatomical lymphatic imaging sequences, and can serve as a reference for novel functional and molecular LN imaging methods that require quantitative knowledge of LN relaxation times.

INTRODUCTION: Lipedema is a syndrome that is characterised by edema, an accumulation of fat, pain and haematomas in the lower limbs that principally affects women. Diagnosis is currently based on clinical criteria, since there is no accurate diagnostic imaging for the condition. The aim of our study was to describe the lymphoscintigraphic findings in patients with lipedema. MATERIAL AND METHOD: A prospective cohort study of women with clinical criteria of lipedema who underwent lymphoscintigraphy. Two independent nuclear physicians described and classified the lymphoscintigraphy findings in different grades of severity, according to the migration and distribution of the radiopharmaceutical. Eighty three patients were included with a median age of 49.7years (range: 18-80) and a mean body mass index (BMI) of 29.9kg/m(2) (95%CI: 28.4-31.3) RESULTS: Lymphoscintigraphy showed alterations in 47% of the patients, most were low (35.9%) or low-moderate grade (48.7%). None of the patients were severely affected (no migration of the radiopharmaceutical). The degree of lymphoscintigraphic involvement bore no relation to age (P=.674), Stemmer's sign (P=.506), or BMI (P=.832). We found lymphoscintigraphy findings in all the clinical stages of lipedema, with no significant differences between the grade of lymphoscintigraphic involvement and the clinical stage of lipedema (P=.142). CONCLUSION: Although lymphoscintigraphy has been used to differentiate lipedema from lymphedema, we found frequent alterations in the patients with lipedema, therefore the presence of findings dues not discount a diagnosis of lip1aedema.

Although liposuction of lipoedema is a well-established therapeutic option in plastic and reconstructive surgery, the commonly known operative protocols vary widely between clinics. A precise summary of all described protocols and a critical evaluation have not been published to date. This review aims to create a basic structure for future Standard Operative Protocols (SOPs) in the surgical treatment of lipoedema. For that purpose, 140 publications on therapeutic approaches concerning lipoedema have been reviewed and systematically categorized. The results indicate fundamental differences in treatment strategies as well as minor differences in organizational management.

Lipoedema is painful nodular subcutaneous adipose tissue (SAT) on legs and arms of women sparing the trunk. People with Dercum disease (DD) have painful SAT masses. Lipoedema and DD fat resists loss by diet and exercise. Treatments other than surgery are needed. Six women with lipoedema and one with DD underwent twelve 90-min sessions over 4 weeks. Body composition by dual X-ray absorptiometry scan, leg volume, weight, pain, bioimpedance, tissue size by caliper and ultrasound were analysed before and after SAT therapy by paired t-tests. There was a significant decrease from baseline to end of treatment in weight, 87.6 ± 21 to 86.1 ± 20.5 kg (P = 0.03), leg fat mass 17.8 ± 7.7 to 17.4 ± 7.6 kg (P = 0.008), total leg volume 12.9 ± 4 to 12 ± 3.5 L (P = 0.007), six of 20 calliper sites and tissue oedema. Pain scores did not change significantly. By ultrasound, six women had 22 hyperechoic masses in leg fat that resolved after treatment; five women developed seven new masses. Fascia improved by ultrasound after treatment. SAT therapy reduced amount and structure of fat in women with lipoedema and Dercum disease; studies are needed to compare SAT therapy to other therapies.

BACKGROUND: Tape measures continue to be used for the diagnosis and evaluation of lipoedema and lymphoedema in the clinical routine. Extremity volumes are calculated based on standardised circumferential measurements. Other volume measurements such as water displacement are not applied on a regular basis. This study aimed to evaluate a 3D scanner as an alternative and reproducible tool to objectively measure the volumes of the lower extremity. PATIENTS, MATERIALS AND METHOD: We used a commercially available 3D scanner, the Artec Eva(®), to perform 3D scans of the lower extremities on 20 subjects and calculated the volume using the appropriate software. In addition, limb volume was determined with standardised methods using the circumferential method (cone method and disc method) and the water displacement technique. The results and the time taken to perform the three measurement methods were documented and statistically evaluated. RESULTS: There were no significant deviations between the results from 3D volumetry and water displacement (p > 0.05). The cone method significantly overestimated the volume measured by water displacement and 3D volumetry. The disc method revealed no statistically significant differences, but clinically relevant differences with a high variance in the 95 % confidence interval. All methods demonstrated high positive correlations with each other. Water displacement was the most timeconsuming method. CONCLUSION: Our findings obtained from the examination of 40 lower extremities show that 3D scans and software-based volumetric calculations can achieve objective and reproducible measurements in a relatively short time. The deviation from the gold-standard method of water displacement is small. Compared with the cone and disc method, however, we observed clinically relevant deviations with a high variance. We therefore recommend the 3D scan procedure for the objective documentation of conservative and surgical treatments for lipoedema or lymphoedema and have incorporated it into our clinical routine.

Lipoedema is a rare painful disorder of the adipose tissue. It essentially affects females and is often misdiagnosed as lymphoedema or obesity. It is globally misdiagnosed or underdiagnosed, and the literature is lacking appropriate guidance to assist clinicians towards this diagnosis. However, the need to recognise this disorder as a unique entity has important implications to establish proper treatment and, therefore, its tremendous effect on patients. Early diagnosis and treatment can turn these patients' lives upside down. The aim of this review is to focus on the clinical guidance, differential diagnosis, and management strategies. In addition, other aspects of lipoedema, including epidemiology and pathogenesis, are also being discussed here. Lipoedema is distinct from obesity and distinct from lymphoedema, although it might progress to involve the venous and lymphatic system (venolipedema or lympholipedema or both). Late diagnosis can leave the patient debilitated. Management of lipoedema includes weight loss, control of oedema, complex decongestive physiotherapy, liposuction, and laser-assisted lipolysis. However; there are increasing reports on tumescent liposuction as the preferred surgical option with long-lasting results. The role of more randomised controlled studies to further explore the management of this clinical entity remains promising.

Lipoedema is a painful, chronic progressive disorder of adipose tissue, characterised by symmetrical swelling of the lower and/or upper limbs. Due to a lack of awareness, lipoedema is frequently misdiagnosed. However, accurate diagnosis and treatment are essential since they determine the patient's prognosis. There is no known causal therapy because the exact aetiology of the disease is not fully understood at this time. Familial aggregation is common, which suggests a genetic disorder. Since lipoedema is almost exclusively found in women and manifests around hormonal changes (puberty, pregnancy, menopause), oestrogen is believed to play a decisive role in its pathogenesis. This review aims to summarise the symptoms and clinical features of lipoedema, its differential diagnosis, treatment options, and current theories on the pathogenesis of lipoedema.

Lipoedema is a progressive disease, which predominantly affects women. It is characterised by circumferential growth, with increase in fat tissue of the extremities, and can lead to oedema. In contrast, the lymphoedema is defined by a specific lymphatic drainage disorder and can lead to fibrosis of the surrounding connective tissue. While lipoedema is diagnosed through clinical symptoms and diagnostic imaging can usually only be used to rule out comorbidities, lymphatic drainage disorder can be visualised using imaging methods. Ultrasound is a basis diagnostic tool to show retained interstitial fluid in lip- and lymphoedema. Lymphoscintigraphy is considered to be the gold standard to demonstrate a lymphatic drainage disorder, which can be combined with computed tomography. Indocyanine green(ICG) lymphography is a dynamic imaging tool, which is of increasing significance due to its possible intraoperative use. Magnetic resonance imaging (MRI) lymphography has the ability to visualise a lymphoedema and a lymphatic drainage disorder in three dimensions and is therefore considered to be a meaningful supplement. Therapy of lip- and lymphoedema should always be based on a combination of conservative and surgical strategies. While liposuction and other resection procedures can lead to symptom relief in lipedoema or advanced lymphoedema, newer reconstructive procedures such as lymph node transplantation or lymphovenous anastomoses are modern techniques to treat lymphoedema. A long lasting volume reduction can be achieved by creating new lymphatic pathways leading to improved quality of life and reduced symptoms.

OBJECTIVE: We assessed body composition, bone mineral density (BMD), glucose and lipids in Williams syndrome (WS), a rare microdeletion disorder. DESIGN: Individuals with WS had outpatient assessment at Massachusetts General Hospital. Controls were selected from the National Health and Nutrition Examination Survey (NHANES 2005-2006). PATIENTS: A total of 22 individuals with WS, each matched by age, sex and race to four NHANES controls. MEASUREMENTS: Blood sampling, oral glucose tolerance test, dual-energy X-ray absorptiometry scan. RESULTS: WS and control groups were 59% female and 29 ± 8 years old. Compared to controls, individuals with WS were shorter but had similar body weight, with more fat and less lean mass. Per cent body fat was higher in WS even after adjusting for BMI (+2.1% [95% CI 0.4, 3.9%]). Four WS patients had abnormal lower extremity fat accumulation resembling lipedema. HbA1c (+0.5% [0.2, 0.7]) and 2-hour glucose (+68 mg/dL [44, 93]) were higher in WS vs controls, differences which persisted after adjusting for BMI. Fasting glucose was comparable between groups. LDL (-18 mg/dL [-35, -2]) and triglycerides (-45 mg/dL [-87, -2]) were significantly lower in WS. Whole-body BMD was significantly lower (-0.15 g/cm(2) [-0.20, -0.11]) in WS, and this remained true controlling for height (-0.06 g/cm(2) [-0.11, -0.02]). Vitamin D was <30 ng/mL in 81% of those with WS. CONCLUSIONS: On average, adults with WS have increased fat, decreased lean mass, impaired glucose homeostasis and reduced BMD. Clinical efforts to build muscle and bone mass, and to ensure vitamin D sufficiency, are warranted. Genotype-phenotype research efforts are also warranted.

Lipedema is a symmetrical disorder of the subcutaneous adipose tissue that affects almost exclusively women in postpubescent age. The trinity of disfiguring hyperplastic adipose tissue of the proximal extremities, increasing pain over time and bruising is characteristic. Lymphedema can occur in both sexes and is differentiated into primary and secondary subtypes. Symmetry is not a prerequisite for diagnosis. Characteristic for lymphedema is the disproportion between lymphatic fluid and the capacity of lymphatic vessels. The most distal body parts are always more severely affected than proximal parts. In the initial phases lymphedema is painless but in advanced stages tension pain can occur. The combination of both disorders has been described; however, lipedema is not responsible for subsequent lymphedema in contrast to central obesity, which significantly increases the risk of lymphedema. The differential diagnosis is of utmost importance for a meaningful management.

Dr Herbst and colleagues of University of Arizona explain fat tissue disorders, lipomas, and who should see a physician

Lipedema is a chronic, progressive adipose tissue disorder that may impact the quality of life of women who suffer from it. The main aim of this study was to asses the role of perceived symptom severity, physical and psychological functioning with the disease in predicting quality of life in patients with lipedema. We conducted an online study with 329 participants who responded to five questionnaires measuring quality of life (World Health Organization Quality of Life BREF), lipedema symptom severity, mobility (Lower Extremity Functional Scale), depression (Patients Health Questionnaire-9), and appearance-related distress (Derriford Appearance Scale 24). Multiple hierarchical regression analyses showed that appearance-related distress and depression explained significantly more variance in quality of life when added to the symptom severity and mobility. Lower quality of life was predicted by higher symptom severity, lower mobility, higher appearance-related distress and higher depression severity. Appearance-related distress and depression constitute important aspects of psychological functioning in women with lipedema. Considering their relationship with quality of life, their assessment should be included in lipedema treatment with appropriate interventions aimed at decreasing appearance-related distress, as well as preventing and addressing depression.

Um das Lipödem ranken sich zahlreiche Mythen! In dieser kleinen Übersichtsreihe über die Mythen des Lipödems werfen wir einen kritischen Blick auf populäre Statements zum Lipödem; Statements, die vor Jahrzehnten schon Eingang in wissenschaftliche Publikationen gefunden haben und seither unkritisch und stetig wiederholt werden; Statements, die dadurch inzwischen zum selbstverständlichen Wissensallgemeingut von Lipödempatientinnen und vor allem auch von Lipödem-Selbsthilfegruppen geworden sind. Im ersten Teil unserer Darstellung haben wir uns kritisch mit zwei populären Mythen über das Lipödem auseinandergesetzt. Hierbei haben wir festgestellt, dass sowohl für das Statement „Das Lipödem ist eine progrediente Erkrankung” als auch für das Statement „Ein Lipödem macht psychisch krank” keine wissenschaftliche Evidenz vorliegt. In einem zweiten Beitrag über die Mythen des Lipödems fokussierten wir uns auf den Ödemaspekt, auf das „Ödem im Lipödem” und die hieraus erfolgende therapeutische Konsequenz: die Manuelle Lymphdrainage. Wir konnten darlegen, dass für das populäre Statement „Das Lipödem ist in erster Linie ein „Ödem-Problem”, daher ist die Manuelle Lymphdrainage essenzielle und regelmäßig durchzuführende Standardtherapie” ebenfalls keine wissenschaftliche Evidenz existiert. Der regelmäßigen und dauerhaften Verordnung von Manuellen Lymphdrainagen mit dem Ziel der „Ödembeseitigung” fehlt daher jede Grundlage. In diesem dritten Teil der Auseinandersetzung über bekannte und oft zitierte” Lipödem-Statements” beschäftigen wir uns mit zwei weiteren Mythen: 4. „Das Lipödem macht dick” und 5. „Gewicht abnehmen hat keinen Effekt auf das Lipödem”. Für beide Statements gibt es weder ein sinnvolles physiologisches bzw. pathophysiologisches Konstrukt noch eine sich in der Literatur findende wissenschaftliche Evidenz. Darüber hinaus widersprechen beide Statements in hohem Maße unserer seit Jahren bestehenden täglichen klinischen Erfahrung mit Lipödempatientinnen. Tatsächlich scheint das Gegenteil richtig: Gewichtszunahme wirkt als entscheidender Trigger, um – bei entsprechend genetischer Disposition für ein Lipödem – dieses überhaupt erst zu entwickeln. Lipödem und Adipositas sind zwei unterschiedliche Erkrankungen, die jedoch in den meisten Fällen gemeinsam auftreten. Fast täglich sehen wir Lipödempatientinnen, die sich aufgrund ihrer morbiden Adipositas einer bariatrischen Operation unterzogen und dadurch effektiv – auch im Bereich der Extremitäten – Gewicht verloren haben. Patientinnen mit Lipödem erfahren durch diese meist nachhaltige Gewichtsabnahme regelhaft eine deutliche Besserung ihrer lipödemtypischen Schmerzen. Häufig sind die Patienten dann beschwerdefrei, sodass wir dann von einem Lipödem in Remission sprechen können. In einem vierten Beitrag werden wir uns mit dem Stellenwert der Liposuktion beim Lipödem beschäftigen, um dann in unserer letzten Darstellung ein therapeutisches Konzept vorzustellen, das nicht nur wissenschaftlich fundiert ist, sondern auch zu einer nachhaltigeren und umfassenderen Beschwerdebesserung unserer Lipödempatientinnen beitragen soll.

BACKGROUND: Implementation of guideline recommendations for the diagnosis and therapy of lipedema and lymphedema seems to be problematic in daily routine. Systematic data for Germany are missing. The aim of the study was data collection regarding diagnosis and therapy of lymphologic diseases in an outpatient setting. METHODS: Monocentric, prospective survey of patients from a lymphologic outpatient clinic using a standardized questionnaire focusing on diagnostics and therapy at the initial diagnosis. RESULTS: In all, 72 patients (83.3% women) with lymphedema (n = 26), lipedema (n = 14) or lipolymphedema (n = 32) were included; 44.4% had symptoms more than 5 years before the initial diagnosis. Main symptoms were swelling of the leg and foot (especially lymphedema) and feeling of heaviness (especially lipedema). In 75%, the initial diagnosis was made by a medical specialist. The basic diagnostics recommended by the guidelines-medical history (73.6%) and clinical examination (84.7%)-were done in most of the patients. After the initial diagnosis, 46% of the patients had decongestion therapy of different intensity and quality. A total of 58.3% of the patients were directly provided a prescription for a medical stocking. Only a few patients received instructions for breathing exercises (22.2%), self-performed lymphatic drainage (6.9%) or muscle exercises (8.3%). DISCUSSION: There are still deficits in the diagnosis and especially in the therapy of patients with lymphologic diseases in an outpatient setting. Further education and training are necessary for physicians, physiotherapists, medical supply businesses, and patients.