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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.

  • Abstract Background Lipedema is characterized as an abnormal deposition of fat in the buttocks and legs bilaterally that may be accompanied by swelling, pain, and tenderness. It is still often confused with more frequent conditions such as obesity and lymphedema. The estimated prevalence in Europe varies between 0.06% and 39%. Objectives To evaluate the prevalence of lipedema and identify health factors related to it in the Brazilian population. Methods Administration of a previously validated online screening questionnaire to a representative sample of the general population. The questionnaire was distributed and administered to anonymous volunteers representing the general Brazilian population using software designed for population analyses. Results 253 women answered the questionnaire, 12.3 ± 4% (Confidence Interval [CI] 95%) of whom presented symptoms compatible with a high probability of being diagnosed with lipedema. Furthermore, anxiety, depression, hypertension, and anemia were also correlated with a high probability of the diagnosis. Conclusions The estimated prevalence of lipedema in the population of Brazilian women is 12.3%. , Resumo Contexto O lipedema é caracterizado por deposição anormal de gordura em glúteos e pernas bilateralmente, que pode ser acompanhada por edema, dor e sensibilidade ao toque. Ainda é frequentemente confundido com condições mais frequentes, como obesidade e linfedema. A prevalência estimada na Europa varia entre 0,06% e 39%. Objetivos Avaliar a prevalência do lipedema na população brasileira e identificar fatores de saúde relacionados a essa doença. Métodos Foi aplicado um questionário de rastreamento on-line, previamente validado em amostra representativa da população geral. O questionário de rastreamento foi distribuído e aplicado em voluntárias anônimas representativas da população geral brasileira por software dedicado a análises populacionais. Resultados Um total de 253 mulheres respondeu ao questionário, e 12,3 ± 4% (intervalo de confiança de 95%) apresentaram sintomatologia compatível com alta probabilidade de diagnóstico de lipedema. Ansiedade, depressão, hipertensão e anemia foram correlacionadas com a alta probabilidade diagnóstica da doença. Conclusões A prevalência estimada do lipedema na população de mulheres brasileiras é de 12,3%.

  • 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.

  • Lipedema is a chronic and progressive condition characterized by the disproportionate accumulation of subcutaneous adipose tissue predominantly in the upper and lower limbs, sparing the trunk, hands, and feet. It affects approximately 12.3% of the female population in Brazil. Clinically diagnosed, its most common symptoms include tenderness upon palpation and spontaneous bruising. During the development of a qualitative ultrasonographic classification for lipedema, termed Lipedema Dermis and Hypodermis Classification (LDHC), an echogenic nodule was identified in the superficial hypodermis. This nodule was painful upon superficial palpation and lacked ultrasonographic features of a lipoma. The patient presented with a nodule in the distal posterior region of the right thigh and another on the distal posterior of the right arm. Given the possible differential diagnoses, including neoplasia and angiodysplasia, an ultrasound-guided biopsy was performed. Macroscopic analysis revealed an oval-shaped, reddish nodule, suggestive of blood content. Histological analysis revealed areas of steatonecrosis, hemorrhagic foci, and neoangiogenesis with irregular architecture and fragile vessel walls. Complementary analysis of the resistance index (RI) of superficial hypodermal arteries demonstrated an increased RI in the lipedema patient compared to the control. All these findings suggest that the tissue is hypoxic and characterized by chronic inflammation, supporting the hypothesis of increased subcutaneous compartment pressure in lipedema. This case report elucidates the ultrasonographic findings of nodules classified by LDHC through microscopic anatomical correlation and aids in understanding the pathophysiological mechanisms underlying lipedema.

Last update from database: 10/14/25, 7:33 AM (UTC)

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