{"title":"Ultrasound and magnetic resonance imaging (MRI) assessment of piezogenic papules: A report of three cases.","authors":"Antoine Moraux, Thomas Le Corroller","doi":"10.1007/s00256-025-04906-5","DOIUrl":null,"url":null,"abstract":"<p><p>Piezogenic papules (PP) are protrusions of fat that form within the subcutaneous tissue, which are typically found on the heels. We herein describe the ultrasound (US) presentation (topography, echogenicity, shape, dynamic reducibility, and power Doppler activity) and magnetic resonance imaging features (topography, signal, and shape) of PP in three female patients who were referred to our institution for evaluation of soft tissue nodules of the heel. Then, we discuss the anatomy of the heel fat pad and its implication in the pathophysiology of PP. Because PP consist of herniations of subcutaneous fat from deep macrochambers to superficial microchambers through focal defects in the fibroconjunctive capsule of the heel fat pad, dynamic US can demonstrate the reducibility of PP under probe compression and therefore allows easy differentiation from other soft tissue tumors.</p>","PeriodicalId":21783,"journal":{"name":"Skeletal Radiology","volume":" ","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Skeletal Radiology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s00256-025-04906-5","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ORTHOPEDICS","Score":null,"Total":0}
引用次数: 0
Abstract
Piezogenic papules (PP) are protrusions of fat that form within the subcutaneous tissue, which are typically found on the heels. We herein describe the ultrasound (US) presentation (topography, echogenicity, shape, dynamic reducibility, and power Doppler activity) and magnetic resonance imaging features (topography, signal, and shape) of PP in three female patients who were referred to our institution for evaluation of soft tissue nodules of the heel. Then, we discuss the anatomy of the heel fat pad and its implication in the pathophysiology of PP. Because PP consist of herniations of subcutaneous fat from deep macrochambers to superficial microchambers through focal defects in the fibroconjunctive capsule of the heel fat pad, dynamic US can demonstrate the reducibility of PP under probe compression and therefore allows easy differentiation from other soft tissue tumors.
期刊介绍：
Skeletal Radiology provides a forum for the dissemination of current knowledge and information dealing with disorders of the musculoskeletal system including the spine. While emphasizing the radiological aspects of the many varied skeletal abnormalities, the journal also adopts an interdisciplinary approach, reflecting the membership of the International Skeletal Society. Thus, the anatomical, pathological, physiological, clinical, metabolic and epidemiological aspects of the many entities affecting the skeleton receive appropriate consideration.
This is the Journal of the International Skeletal Society and the Official Journal of the Society of Skeletal Radiology and the Australasian Musculoskelelal Imaging Group.
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