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Lipedema is a disease with high prevalence but low recognition. It is often misdiagnosed and underdiagnosed. Obesity and lymphoedema are the most common differential diagnoses and can also coexist in patient with lipedema. Its broad range of presentation and fat distribution types contribute to this confusion. It is likely that lipedema symptom variations and presentation forms are often associated with hormonal variations, chronic low-grade systemic inflammation, and wide polygenic variations. This paper presents a theory regarding the clinical evolution of lipedema clinical and its involvement with other diseases, suggesting a three-phase approach for treatment.

BACKGROUND: Lipedema is a frequently misdiagnosed condition in women, often mistaken for obesity, which significantly deteriorates both quality of life and physical health. Recognizing the necessity for holistic treatment strategies, research has increasingly supported the integration of specific dietary approaches, particularly ketogenic diets focusing on low-carbohydrate and high-fat intake. OBJECTIVES: to evaluate the impact of ketogenic diets on women with lipedema through a systematic review and meta-analysis. METHODS: A systematic review and meta-analysis were conducted by reviewing published, peer-reviewed studies addressing the implications of a low-carbohydrate, high-fat (LCHF) ketogenic diet in managing lipedema following comprehensive scrutiny of digital medical databases, such as PubMed, PubMed Central, Science Direct, and the Web of Science. This research was governed by specified parameters, including an established search string composed of search terms and an eligibility criterion (PICO) as denoted by the principal authors. Statistical analysis was carried out using RevMan 5.4.1 software with the Newcastle-Ottawa Scale utilized for quality appraisal of the included studies. RESULTS: Seven studies reporting statistical outcomes were included in the systematic review and meta-analysis following a rigorous quality appraisal and data identification process. Three hundred and twenty-nine female participants were diagnosed with lipedema and treated using a low-carbohydrate, high-fat diet. Data analysis identified the high-fat diet with a mean study duration of 15.85 weeks. Mean Differences (MDs) on changes pre- and post-intervention showed significant reductions in BMI and total body weight [4.23 (95% CI 2.49, 5.97) p < 0.00001 and 7.94 (95% CI 5.45, 10.43) p < 0.00001 for BMI and body weight, respectively]. Other anthropometric measurements, such as changes in waist/hip circumferences and waist/hip ratios, showed a significant reduction in these parameters, with an MD of 8.05 (95% CI 4.66, 11.44) p < 0.00001 and an MD of 6.67 (95% CI 3.35, 9.99) p < 0.0001 for changes in waist and hip circumferences from baseline, respectively. Lastly, changes in pain sensitivity were statistically significant post-intervention [MD 1.12 (95% CI, 0.44, 1.79) p = 0.001]. All studies scored fair on the Newcastle-Ottawa Scale. CONCLUSIONS: despite the limited studies and low number of study participants, the review observed a significant reduction in anthropometric and body composition metrics, indicating a potentially beneficial association between LCHF ketogenic diets and lipedema management.

Background  The Questionário de avaliação sintomática do lipedema (QuASiL – Lipedema Symptom Assessment Questionnaire) assesses 13 distinct inflammatory symptoms of lipedema, but whether these symptoms resolve and recur simultaneously or follow a consistent order remains unknown. Objectives  To characterize the persistence hierarchy of the 13 QuASiL inflammatory symptoms in a retrospective lipedema cohort under heterogeneous conservative treatment, using 6 complementary rank-order analyses and testing the null hypothesis that symptoms resolve with equal magnitude. Methods  This retrospective longitudinal study included 1,300 patients who were clinically diagnosed with lipedema by a vascular surgeon and who completed the QuASiL on at least 2 occasions (minimum 14-day interval; median follow-up 181 days, IQR 92–380, maximum 1,787 days). A consensus ranking was computed across all analyses. A sensitivity analysis was conducted using the conventional T0 = first visit, T1 = last visit convention, and a Kaplan-Meier survival analysis estimated the time (in absolute days) to ≥ 50% reduction from baseline per symptom. Results  The symptoms did not resolve simultaneously (Friedman χ2 (12) = 168.08, p < 0.001). All 13 symptoms improved during follow-up, showing a consistent order across the 6 analyses. A slower-resolving core was identified: bruising (consensus rank 1.7), swelling (2.0), touch sensitivity (4.3), leg heaviness (4.7), and fatigue (4.7). A rapidly-responding group comprised skin irritation (66.4% proportional reduction), itching (62.0%), and walking difficulty (62.6%). Even the most resistant symptom (bruising) achieved a mean 39.1% proportional reduction, with half of patients reaching ≥ 50% improvement. During worsening, swelling and pressure/tension re-emerged first. The sensitivity analysis (T0 = first, T1 = last) produced an essentially identical ranking (Spearman ρ = 0.945, p < 10−5). The Kaplan-Meier analysis estimated a median of 546 days for bruising vs 207 days for itching to reach ≥ 50% reduction from baseline (log-rank χ2 = 44.6, p < 10−10); the fastest-resolving symptom was heat/burning at 203 days. Conclusions  In this retrospective cohort of patients under heterogeneous conservative treatment, the 13 QuASiL inflammatory symptoms improved following a consistent order across 6 independent analyses, with bruising and swelling as the most persistent symptoms. Keywords: lipedema; inflammatory symptoms; resolution order; bruising; patient-reported outcomes; longitudinal study

SUMMARY OBJECTIVE: The aim of this study was to characterize global scientific output on lipedema from 2000 to 2025 and identify emerging thematic trends, with emphasis on the emergence of immunological research. METHODS: Publications indexed in Google Scholar, PubMed, Crossref, OpenAlex, and Scopus were retrieved using the terms "lipedema" OR "lipoedema." Records were deduplicated by normalized title matching and DOI cross-referencing. Bibliometric indicators computed included publication volume, citation metrics, field h-index, exponential growth rate, geographic distribution, author metrics, specialty classification (journal-name keyword matching supplemented by OpenAlex concept tags), and immunological content (regular-expression pattern matching against a predefined term list). RESULTS: A total of 942 unique publications were identified, accumulating 13,688 citations (field h-index=60; mean 14.5 citations per article; median 2 citations per article). Annual output grew from below 12 per year through 2009 to 145 in 2025, with a doubling time of 3.6 years (R2=0.90; p<0.001). The United States, Germany, and Brazil were the most productive countries. Karen Lynn Herbst (USA) was the most influential researcher (46 papers; h-index=20; 1,586 citations). Lymphology and phlebology formed the dominant classifiable domain (17.1%), with 69.3% of publications spanning multiple disciplines. Publications with immunological content totaled 30 (3.2%), grew from essentially zero before 2019 to 4.8% of annual output in 2025, and received higher mean citations than non-immunological articles (16.6 vs. 14.5). CONCLUSION: Lipedema research is undergoing rapid exponential expansion driven by growing global recognition of a historically neglected condition. The accelerating immunological trend, with consistently higher citation impact, indicates an accelerating paradigm shift toward chronic adipose tissue inflammation as a unifying pathophysiological framework.

Lipedema is characterized by fat accumulation in the limbs, sparing the trunk, hands, and feet. Its etiology remains uncertain, but may be related to genetic and female hormones. Several theories suggest an association with chronic inflammation and fibrosis. Pain, spontaneous bruising, and increased diameter of the affected areas are the most frequent signs and symptoms. Diagnosis is primarily clinical, but frequently supported by imaging techniques, including ultrasound, magnetic resonance imaging (MRI), dual-energy X-ray absorptiometry (DEXA), and lymphoscintigraphy to differentiate lipedema from other similar conditions. This study retrospectively analyzed ultrasonographic images of 34 female patients, clinically diagnosed with lipedema and correlated structural patterns with different stages of inflammation and fibrosis in the dermis and subcutaneous tissue. The images were obtained in 2024 using high-frequency linear transducers (12 - 15 MHz). The findings enabled the identification of potentially characteristic changes for the development of a classification that may assist in diagnosis, treatment, and monitoring of this condition. However, while ultrasonography has already been incorporated into routine medical practice to investigate lipedema, prospective and comparative multicenter studies that correlate ultrasound findings with the clinical stage of the disease are necessary to validate the applicability of this approach.