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Lipedema is a disease with unknown etiology presenting as bilateral and symmetric enlargement of the lower extremities due to subcutaneous deposition of the adipose tissue. Here we describe the histopathological features of the lipedema tissue and nonaffected adipose tissue obtained from a typical patient with severe lipedema. Immunohistochemical analyses indicated degenerative and regenerative changes of the lipedema tissue, characterized by crown-like structures (necrotizing adipocytes surrounded by infiltrating CD68+ macrophages; a feature commonly seen in obese adipose tissue) and proliferation of adipose-derived stem/progenitor/stromal cells (Ki67+CD34+ cells), respectively. These findings suggested increased adipogenesis in the lipedema tissue, which may further lead to hypoxia similar to that seen in obesity, resulting in adipocyte necrosis and macrophage recruitment. The confinement to the lower extremities and the difference from systemic obesity warrants further elucidation in future studies.

We report a familial Sotos syndrome in two children, boy and girl, aged 17 and 8 years, and in their 44 year old mother, who displayed normal intelligence at adult age, but suffered from insulin dependent diabetes mellitus, bronchial asthma, and severe lipedema. The underlying missense mutation, C2175S, occurred in a conserved segment of the NSD1 gene. Our findings confirm that familial cases of SS are more likely to carry missense mutations. This case report may prove useful to avoid underestimation of the recurrence rate of SS, and to demonstrate that the developmental delay may normalize, enabling an independent life and having an own family.

Einleitung: Bei einem Lipödem liegt eine anlagebedingte Fettgewebsvermehrung vor, bei der es zu einer symmetrischen Verdickung der Extremitäten kommt. Klinisch ist für das Lipödem eine Druckschmerzhaftigkeit charakteristisch. Bei länger bestehendem Lipödem kann man beobachten, dass bei einem Teil der Patientinnen zusätzliche Beschwerden auftreten. Die betroffenen Frauen erleben auf Grund der massiven Schwellungen dann, neben einem ausgeprägten Spannungs- und Schweregefühl der Beine, physische und psychische Belastungen, wodurch Sportangebote häufig nicht wahrgenommen werden und die soziale Interaktionen eingeschränkt ist. Studiendesign: Die vorliegende prospektive randomisierte Studie wurde zur Evaluation der Wirksamkeit eines vibrationsgestützten Krafttrainings mit dem Galileo-System im Vergleich zu einem herkömmlichen Training zur Aktivierung der Beinmuskelpumpe bei Patientinnen mit Lipödem durchgeführt. Die Probanden beider Gruppen erhielten 12 Anwendungen in einem Zeitraum von sechs Wochen. Zur Beurteilung des Therapieverlaufs wurde die Druckschmerzschwelle im Beinbereich mithilfe der visuellen Analogskala (VAS) und der Dolorimetrie an definierten Messpunkten erfasst. Nebenzielkriterien waren die Volumenreduktion und die Verbesserung funktioneller Parameter sowie der Lebensqualität. Die Erhebung der Outcomeparameter erfolgte vor der Intervention (U1), vor der letzen Trainingseinheit (U2) und 6 Wochen nach Therapieende (U3). Ergebnisse: Das Vibrationstraining (n=27) und die Venengymnastik (n=17) zeigten bezüglich der Schmerzlinderung signifikante Verbesserungen im Therapieverlauf. Die Druckschmerzschwelle konnte erhöht werden. Die Auswertung der Fragebögen zu Hämatomneigung und Schmerzempfinden ergab in der Interventionsgruppe eine signifikante Beschwerdelinderung im Therapieverlauf. In beiden Gruppen konnte eine subjektive Verbesserung der Mobilität und ein positiver Einfluss auf die Lebensstiländerung verzeichnet werden. Die im Gehtest beurteilte Ausdauerleistung verbesserte sich ebenfalls. Diskussion: Es konnte gezeigt werden, dass sowohl mit herkömmlicher Krankengymnastik als auch durch ein gerätegestütztes Vibrationstraining zwei wesentliche Symptome des Lipödems, nämlich Druckschmerzhaftigkeit und Hämatomneigung, positiv beeinflusst werden können. Somit lässt sich die Notwendigkeit unterstreichen, dass eine Therapie des Lipödems durch eine Bewegungstherapie ergänzt werden sollte.

OBJECTIVE: To evaluate methods to assess peripheral edema for reliability, feasibility and correlation with the classic clinical assessment of pitting edema. DESIGN: Cross-sectional observational study. SETTING: Large primary care clinic in Marshfield, Wisconsin, USA. PARTICIPANTS: Convenience sample of 20 patients with type 2 diabetes and a range of edema severity, including patients without edema. METHODS: Eight methods of edema assessment were evaluated: (1) clinical assessment of pit depth and recovery at three locations, (2) patient questionnaire, (3) ankle circumference, (4) figure-of-eight (ankle circumference using eight ankle/foot landmarks), (5) edema tester (plastic card with holes of varying size pressed to the ankle with a blood pressure cuff), (6) modified edema tester (edema tester with bumps), (7) indirect leg volume (by series of ankle/leg circumferences), and (8) foot/ankle volumetry by water displacement. Patients were evaluated independently by three nurse examiners. RESULTS: Water displacement and ankle circumference had high inter-examiner agreement (intraclass correlation coefficient 0.93, 0.96 right; 0.97, 0.97 left). Agreement was inconsistent for figure-of-eight (0.64, 0.86), moderate for indirect leg volume (0.53, 0.66), and low for clinical assessments at all locations. Agreement was low for the edema testers but varied by the pressure administered. Correlation with the classic, subjective clinical assessment was good for the nurse-performed assessments and patient questionnaire. Ankle circumference and patient questionnaires each took 1 minute to complete. Other tools took >5 minutes to complete. CONCLUSIONS: Water displacement and ankle circumference showed excellent reliability; however, water displacement is a time-consuming measure and may pose implementation challenges in the clinical and clinical trial environments. Patient-reported level and frequency of edema, based on an unvalidated questionnaire, was generally well correlated with the physician assessment of edema severity and may prove to be another reliable and accurate method of assessing edema. Additional study is needed to evaluate the validity and responsiveness of these methods.

OBJECTIVE: To assess for the first time the morphology of the lymphatic system in patients with lipedema and lipo-lymphedema of the lower extremities by MR lymphangiography. MATERIALS AND METHODS: 26 lower extremities in 13 consecutive patients (5 lipedema, 8 lipo-lymphedema) were examined by MR lymphangiography. 18 mL of gadoteridol and 1 mL of mepivacainhydrochloride 1% were subdivided into 10 portions and injected intracutaneously in the forefoot. MR imaging was performed with a 1.5-T system equipped with high-performance gradients. For MR lymphangiography, a 3D-spoiled gradient-echo sequence was used. For evaluation of the lymphedema a heavily T2-weighted 3D-TSE sequence was performed. RESULTS: In all 16 lower extremities (100%) with lipo-lymphedema, high signal intensity areas in the epifascial region could be detected on the 3D-TSE sequence. In the 16 examined lower extremities with lipo-lymphedema, 8 lower legs and 3 upper legs demonstrated enlarged lymphatic vessels up to a diameter of 3 mm. In two lower legs with lipo-lymphedema, an area of dermal back-flow was seen, indicating lymphatic outflow obstruction. In the 10 examined lower extremities with clinically pure lipedema, 4 lower legs and 2 upper legs demonstrated enlarged lymphatic vessels up to a diameter of 2 mm, indicating a subclinical status of lymphedema. In all examined extremities, the inguinal lymph nodes demonstrated a contrast material enhancement in the first image acquisition 15 min after injection. CONCLUSION: MR lymphangiography is a safe and accurate minimal-invasive imaging modality for the evaluation of the lymphatic circulation in patients with lipedema and lipo-lymphedema of the lower extremities. If the extent of lymphatic involvement is unclear at the initial clinical examination or requires a better definition for optimal therapeutic planning, MR lymphangiography is able to identify the anatomic and physiological derangements and to establish an objective baseline.

Lipoedema is a fat distribution disorder causing massive, bilaterally symmetrical enlargement of the lower and in some cases the upper extremities in women. The atraumatic, anatomically appropriate procedure of water jet-assisted liposuction available today represents a promising treatment for these patients who generally suffer from severe subjective and objective impairment. Liposuction treatment can bring long-term improvement if the operative technique focuses on lymph vessel preservation. Immunohistologic analyses show minimal evidence of lymph vessel structures in lipoaspirates. The histologic analysis of the aspirates documents a relatively specific removal ("apheresis") of primarily intact lipocytes with low vascular amount.

BACKGROUND Many surgeons consider liposuction using tumescent local anesthesia (TLA) to be a safe technique, but when TLA has been combined with other techniques, such as general anesthesia or intravenous medication, or when the guidelines associated with TLA have been violated, serious complications and deaths have occurred. This has resulted in uncertainty concerning the safety of liposuction using TLA, which this article seeks to resolve. OBJECTIVE To investigate whether liposuction using TLA is a safe procedure. METHODS The same surgeon performed liposuction using exclusively TLA in 3,240 procedures. Detailed records were kept of the complications that occurred. RESULTS In a series of 3,240 procedures, no deaths occurred, and no complications requiring hospitalization were experienced. In nine cases, complications developed that needed further action. CONCLUSIONS Liposuction using exclusively TLA is a proven safe procedure provided that the existing guidelines are meticulously followed.