Abdominal Lipedema: Clinical Diagnosis and Management Through a Proposed Diagnostic Algorithm.

[BACKGROUND] Lipedema is a chronic disorder of adipose tissue that predominantly affects women and is frequently misdiagnosed as obesity or lymphedema. Traditionally associated with the lower extremities, lipedema can also involve the abdominal region, although there are currently no established diagnostic criteria for abdominal lipedema. This study aims to propose a diagnostic algorithm for abdominal lipedema based on clinical features, macroscopic observations, and ultrasound findings.

[METHODS] This retrospective study analyzed data from 327 patients treated between March 2018 and March 2024 for lipedema, including those with abdominal involvement. Clinical evaluations, ultrasound imaging, and surgical outcomes were examined to assess the prevalence and characteristics of abdominal lipedema. Patients were classified based on lipedema severity, and criteria for abdominal lipedema diagnosis were established through clinical and imaging data.

[RESULTS] The study identified that abdominal involvement increases with the severity of lipedema, with 31% of patients with stage II lipedema and 70% of those with stage III lipedema exhibiting abdominal manifestations. The proposed diagnostic algorithm includes maximum, major, and minor criteria, such as symmetrical fat deposition, pain, and non-responsiveness to diet and exercise. Specific threshold values for each category were defined to establish the diagnosis. The findings highlight the existence of both ascending (from legs to abdomen) and descending (from arms to abdomen) centripetal progression patterns, challenging traditional notions that limit lipedema to the extremities CONCLUSION: Abdominal lipedema is a significant and underrecognized manifestation of the condition, requiring specific diagnostic criteria to ensure accurate diagnosis and appropriate treatment. The study proposes a diagnostic framework based on clinical and imaging features that can improve the recognition and management of abdominal lipedema. Multidisciplinary treatment approaches, including both conservative measures and surgical interventions such as abdominoplasty and liposuction, are recommended to improve patient outcomes.

[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 .