article_metadata: Jiashi Song Kunpeng Jiang Zhanhu Lv Bing Liu
article_metadata: 10.3389/fsurg.2022.760704
article_metadata: Front Surg
article_metadata: 2022 Apr 28;9:760704.
article_metadata: clinical manifestations differential diagnosis invasive anal cancer invasive analysis pigmented villonodular synovitis sacroiliac joint surgical treatment the prognosis
article_metadata: CC BY
article_metadata: https://pubmed.ncbi.nlm.nih.gov/35574542/
article_metadata: Case Reports
article_metadata: PMC9095913
article_metadata: 35574542
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article_metadata: 2022