Classification of lower extremity venous malformations and risk of knee involvement: A retrospective cohort study
| Autor: | Rush H. Chewning, Kristen C. Corey, Marilyn G. Liang, John B. Mulliken, Anna Cristina Garza-Mayers, Krystal M. Jones, Samantha A. Spencer |
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| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Klippel-Trenaunay syndrome Vascular Malformations Dermatology Vascular anomaly Veins 030207 dermatology & venereal diseases 03 medical and health sciences 0302 clinical medicine Internal medicine medicine Humans Vascular Diseases Retrospective Studies medicine.diagnostic_test business.industry Vascular malformation Retrospective cohort study Magnetic resonance imaging medicine.disease Confidence interval Lower Extremity 030220 oncology & carcinogenesis Relative risk Venous malformation business |
| Zdroj: | Journal of the American Academy of Dermatology. 85(6) |
| ISSN: | 1097-6787 |
| Popis: | Background Venous malformation (VM) is the most common vascular anomaly in the lower extremity. VMs can be classified as focal, multifocal, or diffuse types. Intraarticular VM (IA-VM) of the knee portends morbidity. Association of the lower extremity VM type with IA-VM is not well defined. Objective To classify a large cohort of lower extremity, nonsyndromic VMs by type and determine associations with IA-VM. Methods Retrospective cohort study. Results We assessed 156 patients with nonsyndromic, lower extremity VM; 71 (46%) were focal and 85 (54%) were diffuse type VM, and 97 (62%) were IA-VM. Of diffuse VMs, 26 (31%) were Bockenheimer and 59 (69%) were localized subtypes. Pure VM had a significantly elevated risk of IA-VM (relative risk [RR], 2.34; 95% confidence interval [CI], 1.42-3.89). IA-VM was more common in diffuse (73%) versus focal (49%) types. Risk of IA-VM in diffuse type VM was significantly elevated (RR, 1.48; 95% CI, 1.13-1.94). One hundred percent of diffuse Bockenheimer type VM had IA-VM, and this subtype had the highest risk (RR, 1.83; 95% CI, 1.56-2.14) of IA-VM. Limitations Retrospective, single-institution study. Conclusions Intraarticular involvement of the knee should be considered in all lower extremity VMs. Pure VM and the Bockenheimer diffuse VM subtype had the highest risk of IA-VM. |
| Databáze: | OpenAIRE |
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