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Background Lipedema is a painful subcutaneous adipose tissue (SAT) disorder that mainly affects women. Patients present fat accumulation in the limbs, especially in the legs. Methods A pilot-controlled clinical trial was conducted on a sample of 18 patients with lipedema, equally divided into a control group (CG) and an experimental group (EG). Both groups were given 10 sessions of diathermy on the inner side of their knees, 10 min of treatment per knee. EG was given the diathermy dose at high-intensity heat, while CG was given sham treatment. Measurement instruments used were circumferential measurements, ultrasound measurements, algometry, VAS, and SF-12 questionnaire. Data were collected at baseline, at the end of the study and 5 weeks later. Results significant reductions in left knee circumference were observed in the EG compared with the CG (p = 0.004 post-intervention and p = 0.017 at follow-up). No significant differences were found in ultrasound, algometry, or VAS measurements within or between groups. Conclusions High-intensity heat diathermy resulted in a reduction in knee circumference, suggesting a potential effect on limb volume.

BACKGROUND: Lipedema is a chronic adipose tissue disorder characterized by abnormal and disproportionate fat accumulation in the extremities, leading to pain, edema, and functional impairment. Liposuction has become a central component of surgical management. However, postoperative complications, particularly seroma formation, remain a concern. OBJECTIVES: To evaluate the incidence of postoperative seroma and associated risk factors in patients undergoing liposuction for lipedema treatment, based on procedures performed by a single surgical team in a single institution. METHODS: This retrospective observational study included 93 female patients who underwent liposuction for lipedema between April 2019 and January 2024. Data collected included demographic variables, body mass index (BMI), anesthesia type, volume of aspirated fat, percentage of body weight removed, use of adjunct technologies (ultrasound or laser), association with other surgeries such as varicose vein surgery, and prior conservative treatment. The primary outcome was the development of postoperative seroma. Statistical analysis included Chi-square and Student's t-tests and multivariable logistic regression, with significance set at p ≤ 0.05. RESULTS: Among 93 cases, 17 patients (18.3%) developed postoperative seroma. Higher volumes of aspirated fat (% body weight) were significantly associated with seroma formation (7.27% vs. 5.84%, p = 0.005). Concomitant minor procedures were also linked to increased seroma incidence (p = 0.035). No seromas occurred in patients treated using ultrasound-assisted liposuction. Minor complications included one infection and one hematoma (1.07%). CONCLUSIONS: Liposuction for lipedema is a safe and effective surgical option with a low rate of major complications, but seroma remains a relatively frequent postoperative finding. Higher aspirated fat volumes relative to body weight and the presence of concomitant procedures increase the risk of seroma. No seromas were observed in the ultrasound-assisted group; however, this difference did not reach statistical significance and should be considered only as hypothesis-generating. Further studies are needed to validate these findings and guide surgical decision-making. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Lipedema is a chronic adipose tissue disorder characterized by disproportionate fat deposition, primarily in the lower extremities, leading to pain, functional impairment, and reduced quality of life. While Power-Assisted Liposuction (PAL) is the standard surgical approach, the integration of Ultrasound-Assisted Liposuction (UAL) with PAL has been proposed to enhance fat removal and improve patient outcomes.

BACKGROUND: Lipedema is a chronic, progressive disorder of subcutaneous adipose tissue that mainly affects women. It is characterized by disproportionate fat hypertrophy, pain, bruising, and marked resistance to diet and exercise. Tumescent liposuction remains the only effective treatment to slow or reverse disease progression, but involves large volumes and fragile microvasculature, increasing bleeding risk. OBJECTIVE: This study aimed to evaluate whether perioperative tranexamic acid (TXA) reduces intraoperative blood loss, postoperative bruising, and early complications in lipedema liposuction. METHODS: We retrospectively analyzed 230 staged liposuction procedures for lipedema performed between 2021 and 2024 at a single center. Patients received TXA intravenously, locally, or in combination, or no TXA. Primary outcomes were estimated intraoperative blood loss and postoperative ecchymosis. Secondary endpoints included hematoma, transfusion need, thromboembolic events, infections, and recovery time. RESULTS: All TXA groups showed significantly lower intraoperative blood loss and hemoglobin drop versus controls (p < 0.01). Local and combined routes were most effective, with the combined approach yielding the lowest ecchymosis scores. Hematoma rates dropped from 12% (no TXA) to 0-6.7% (TXA), and no thromboembolic or infectious complications were observed. No TXA-treated patients required transfusions, while 6% of controls did. CONCLUSIONS: TXA use in lipedema liposuction significantly reduces bleeding and bruising without increasing thromboembolic risk. Combined systemic and local administration appears most beneficial. These findings support TXA as a safe, effective adjunct in multistage, high-volume liposuction for lipedema. Prospective trials are needed to confirm the optimal protocol in this unique population. LEVEL OF EVIDENCE III: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Lipedema is a chronic and progressive adipose tissue disorder characterized by disproportionate fat accumulation, microvascular dysfunction, chronic inflammation, and progressive fibrosis. Despite its prevalence and significant impact on quality of life, current therapeutic approaches remain largely symptomatic and fail to address the underlying biological mechanisms of the disease. Emerging evidence suggests that lipedema should be understood as a multifactorial condition involving genetic susceptibility, endothelial alterations, immune dysregulation, and extracellular matrix remodeling. In this context, pharmacological strategies targeting these pathways have gained increasing attention. Metformin, through activation of AMP-activated protein kinase (AMPK), exerts antifibrotic and immunometabolic effects, including inhibition of TGF-β signaling, reduction of extracellular matrix deposition, and modulation of adipose tissue inflammation. In parallel, incretin-based therapies, particularly glucagon-like peptide-1 (GLP-1) receptor agonists and dual GLP-1/GIP agonists such as tirzepatide, have demonstrated pleiotropic effects that extend beyond weight reduction, including improvements in metabolic homeostasis, reduction of systemic inflammation, and enhancement of endothelial function. These therapies appear to act through complementary mechanisms, with metformin primarily targeting tissue remodeling and fibrosis, and incretin-based therapies exerting broader systemic effects on metabolism, inflammation, and vascular integrity. This review proposes a hypothesis-generating mechanistic framework, supporting a shift from weight-centric and symptomatic approaches toward disease-modifying strategies. Although current evidence in lipedema is largely indirect, the convergence of experimental and clinical data provides a strong rationale for further investigation. Future studies should focus on evaluating combined therapeutic approaches and identifying biomarkers that reflect fibrosis, inflammation, and microvascular dysfunction, with the aim of developing targeted and personalized treatments for this complex disorder.

Infragluteal deformities are a challenging complication following liposuction, particularly when injury occurs to the fibrous osteocutaneous bands of the gluteal crease. Various surgical solutions have been proposed, including autologous fat grafting, skin-lifting procedures, and flap reconstructions, yet a consistent, scar-free, and minimally invasive technique remains elusive. In this report, we present a new modified net suture technique, inspired by the hemostatic net used in aesthetic facial surgery, as a promising treatment for post-liposuction infragluteal deformities. After aggressive power-assisted liposuction to detach mispositioned adhesions within the gluteal crease, we apply a transcutaneous continuous-running suture using non-absorbable nylon, fixed along the newly established crease. The suture is laid loosely to preserve skin perfusion, cushioned by an ointment dressing, and supported with external compression. The technique is completed in approximately 15 minutes, with suture removal on postoperative day 4. In our experience, this approach leads to aesthetically satisfactory outcomes, restores gluteal symmetry, and avoids the formation of additional scars. Our technique is simple, cost-effective, and preserves lymphatic and vascular integrity. This manuscript describes our methodology, rationale, and early clinical observations supporting this low-risk intervention.

Lipedema is a chronic, multifactorial disorder characterized by connective tissue dysregulation, in which vascular dysfunction plays a significant role. Lipedema manifests as symmetrical, painful accumulation of adipose tissue, predominantly in the lower body and arms, with progressive pain, tissue heaviness, and soft-tissue changes across disease stages. Emerging evidence from the micro-to macro-scale implicates endothelial dysfunction, aberrant angiogenesis, and vessel fragility in the pathological accumulation of interstitial fluid leading to tissue edema. Vascular changes are compounded with extracellular matrix remodeling in the form of adipose tissue expansion and fibrosis. Immune cell infiltration and chronic inflammation further contribute to tissue stiffening and adipose hypertrophy, highlighting the role of immune-mediated mechanisms in disease progression. The interplay between vascular, lymphatic, connective tissue, and immune dysfunction emerges as a central determinant of lipedema pathophysiology. Understanding these interconnected mechanisms is critical for elucidating the fundamental biology of lipedema, identifying novel biomarkers, and guiding the development of translational interventions and optimized clinical management strategies.

Methods: Skin and subcutaneous adipose tissue (5-μm sections) were collected from one patient (hand, foot, back), fixed in formaldehyde, and stained for inflammatory markers (CD68, CD163) and endothelial cells (CD31). H&E and Masson’s trichrome staining were performed. Images were captured and manually quantified. Results: Cutaneous tissue from the hands and feet demonstrated increased microvascular density (CD31) with thickened walls, perivascular fibrosis, and macrophage infiltration (CD68, CD163). Macrophages were observed along the nerve fibers and outer nerve layers, consistent with localized nerve inflammation alongside vascular remodeling. Conclusion: This study demonstrates concurrent vascular remodeling and nerve-associated inflammation in lipedema adipose tissue of the hand and feet. These findings highlight that pain in lipedema involves both vascular and neurogenic inflammatory mechanisms, extending the understanding of lipedema pathology beyond the lower extremities.

Background Lipoedema is a condition of abnormal accumulation of painful adipose tissue, usually in the lower body of women. The disproportionate subcutaneous adipose tissue may negatively impact health-related quality of life (HRQoL). There are currently no patient reported outcome measures (PROM) specifically designed to assess the HRQoL in individuals with lipoedema. The aim of this study was to compare scores on validated lower limb lymphoedema PROMs between females with lipoedema and lymphoedema. Methods In a private lymphoedema clinic in Australia between 1 October 2021 and 22 August 2023, individuals assigned female at birth, aged 18 years and older who consented to the entry of de-identified data into a research databank and completed the Lymphoedema Quality of Life tool (LYMQOL-leg) and/or Lymphoedema Symptoms Intensity and Distress Survey (LSIDS-L) for the legs were included in this study. Between group analysis was conducted on 151 participants who were either diagnosed with lipoedema (N = 90) or bilateral leg lymphoedema (N = 61). Participants with both conditions were excluded. Results Participants with lipoedema reported significantly higher burden scores for symptoms (p = 0.003), appearance (p = 0.003) and mood (p = 0.011) in the LYMQOL-leg survey when compared to participants with bilateral leg lymphoedema. Participants with lipoedema also reported significantly worse LSIDS-L scores for neurological sensation (p = 0.003), biobehavioral (p = 0.016) and resource (p = 0.008) questions compared to participants with lymphoedema. Conclusions This study highlights that although females with lipoedema and lymphoedema experience similar symptoms, their experiences differ in specific outcomes that influence their HRQoL. These findings warrant further investigation into the HRQoL concerns of individuals with lipoedema.

Introduction: Lipedema, a painful disease that almost exclusively affects women, leads to an excessive accumulation of subcutaneous adipose tissue, primarily in the extremities. Morphologically, it is characterized by hyperplasia and hypertrophy of adipocytes as well as by inflammation-associated cells and fibrosis. Limited knowledge exists regarding the background of adipocyte pathology. In the present study, we aimed to identify morphological alterations of lipedema adipocytes, which could cause functional implications in lipedema adipose tissue. Methods: Approximately 3000 adipocytes from nine lipedema and five control adipose tissue samples, originating from non-obese donors, were analyzed. The ratio of atypical nuclei (Lochkerne) in relation to the total amount of nuclei was assessed and compared between lipedema and non-lipedema samples. Results: Lipedema adipose tissue exhibits a significantly higher proportion of Lochkerne compared to controls (p=0.001). While 24% of adipocyte nuclei presented as Lochkerne in lipedema samples, only 3% were identifiable in controls. We further show that the process of Lochkern-formation involves the nuclear indentation by small lipid droplets and their subsequent transmigration through the nucleus towards the central lipid content. Conclusion: The significantly increased occurrence of lipoma-associated Lochkerne in lipedema adipose tissue compared to controls reveals that, from a morphological point of view, lipedema is a form of lipomatosis.

ObjectiveTo analyse and compare the prevalence of comorbidities associated with lipedema in Spanish women with that in the general population.MethodsA cross-sectional study was conducted using an anonymous online questionnaire distributed among lipedema patient associations in Spain. Sociodemographic variables, clinical aspects, and comorbidities were collected. These were then compared with data from the 2023 National Health Survey, which represents the general Spanish population. The prevalence of each pathology was compared using odds ratios (OR) with 95% confidence intervals. Age-group contributions were assessed using standardised residuals from expected/observed contingency tables, considering absolute values >1.96 (95% confidence) to be significant.ResultsA total of 1001 responses were obtained, with a mean age of 44.2 years. The most prevalent comorbidities were vitamin D deficiency (63.4%), lower limb venous insufficiency (47.2%), and migraine (43.1%). Compared to the general female population in Spain, patients with lipedema were more likely to suffer from venous insufficiency (OR= 5.05; 95% CI: 4.3-5.8), urinary incontinence (OR= 4.93; 95% CI: 4.1-5.8), migraine (OR= 3.9; 95% CI: 3.4-4.5), thyroid disease (OR= 2.21; 95% CI: 1.8-2.6), and asthma (OR= 2.09; 95% CI: 1.7-2.5). However, the probability of hypertension (OR= 0.38; 95% CI: 0.2-0.4) and diabetes (OR= 0.36; 95% CI: 0.2-0.6) was significantly lower.ConclusionsSpanish women with lipedema have a higher prevalence of certain pathologies that should be considered in their medical care. Understanding these relationships is crucial to improving the detection and treatment of patients.

Abstract - Lipedema is a chronic and often debilitating adipose tissue disorder that primarily affects women. The disease is characterized by disproportionate and symmetrical accumulation of subcutaneous fat in the extremities. Despite the high prevalence of lipedema, which affects ~10% of women, and its significant impact on patient quality of life, lipedema is understudied and often misdiagnosed as other disorders (obesity or lymphedema). In this review, we explore the current understanding of lipedema through clinical, tissue, and cellular lenses, and examine suspected pathological mechanisms, including hormonal influences (such as estrogen), adipocyte hypertrophy and hyperplasia, increased extracellular matrix (ECM) fibrosis, and specialized immune cell involvement, including M2 macrophage infiltration. Recent advancements in adipose tissue engineering, including organoids, fat-on-a-chip platforms, and the use of induced pluripotent stem cells (iPSCs) are explored as platforms to study lipedema pathogenesis.

BACKGROUND/OBJECTIVES: Lipedema is a chronic and progressive adipose tissue disorder characterized by the abnormal accumulation of subcutaneous fat, predominantly in the legs and occasionally in the arms. The symptom that most significantly affects the quality of life is pain. Ultrasound elastography is an imaging technology that allows for measuring tissue stiffness quantitatively. This study aims to evaluate the relationship between accompanying pain in patients with lipedema and tissue elasticity measured using shear-wave elastography (SWE). METHODS: Our study was designed as an observational, analytical and cross-sectional study. The visual analog scale (VAS) was used to assess pain, while the PainDetect questionnaire was utilized to evaluate neuropathic pain. The evaluation of tissue elasticity and fibrosis was conducted using the SWE method. RESULTS: This research assessed thirty-five patients, revealing an average age of 45.2 years and an average body mass index (BMI) of 33.6 kg/m². 60% of the patients had a lipedema diagnosis in their family history. Both age (p < 0.01) and BMI (p < 0.001) values were moderately correlated with all subcutaneous adipose tissue measurements, while no correlation was observed in SWE measurements. Only the level of the thigh in the SWE-Elasticity (SWE-E) values was related to VAS (r = 0.35, p = 0.03). Additionally, PainDetect scores demonstrated significant positive correlations with both SWE-velocity (SWE-V) and SWE-E measurements in the thigh region. Specifically, SWE-V showed moderate correlations with PainDetect scores in the right thigh (r = 0.38, p = 0.02) and left thigh (r = 0.47, p = 0.004), while SWE-E was also significantly correlated in both the right (r = 0.44, p = 0.007) and left thighs (r = 0.44, p = 0.008). CONCLUSIONS: While SWE measurements were not correlated with skin adipose tissue, SWE measurements were correlated with pain and neuropathic pain in patients with lipedema. This finding highlights a potentially important relationship between tissue elasticity and pain, which may warrant further exploration. SWE offers a novel, non-invasive approach to quantifying tissue stiffness, providing valuable insights into tissue alterations in women with lipedema.