DOI:10.12015/issn.1674-8034.2016.01.010.
[Abstract] Objective: To investigate the typical MRI features of lipoma arborescens (LA) of the knee, this paper compares and analyzes it with chronic synovitis lipohypertrophy of imaging and pathology results.Materials and Methods: Retrospective analysis was performed in 14 cases including 4 cases with LA proved by pathological diagnosis and 10 with chronic synovitis lipohypertrophy with datas of MRI and pathology. Lesionectomy was performed in all patients and specimen were observed in HE staining.Results: Four of 14 cases were diagnosed with LA. The adipose tissue by which characterized "tufted" , "dendritic" or "fluffy" , mild synovial hyperplasia as well, were revealed by the MRI and pathologic results. Two cases can not only see clusters of mature adipocyte, but also scattered ones. The others diagnosed with chronic synovitis adipose hyperplasia, both in MRI and pathology, showed synovial hyperplasia obviously and adipose tissue with only a few scattered flocculent point, while one with less adipose tissue even could not be found. Coexisting osteoarthritis was seen in all cases.Conclusions: MRI and pathologic performances of LA and hronic synovitis adipose hyperplasia show diffuse fatty infiltration of the subsynovial connective tissue. They differ in the form and content of synovial fat. Meanwhile we considered LA to be a manifestation or evolution in different stage of chronic synovitis adipose hyperplasia. |
[Keywords] Lipoma;Synovitis;Knee joint;Magnetic resonance imaging |
CHEN Wei-peng Department of Radiology, Jieyang People’s Hospital (Jieyang Affiliated Hospital, Sun Yat-sen University), Guangdong Province, Jieyang 522000, China
LIN Hai-tao* Department of Radiology, Jieyang People’s Hospital (Jieyang Affiliated Hospital, Sun Yat-sen University), Guangdong Province, Jieyang 522000, China
YAO Pei-xu Department of Radiology, Jieyang People’s Hospital (Jieyang Affiliated Hospital, Sun Yat-sen University), Guangdong Province, Jieyang 522000, China
NI Yang-peng Department of Pathology, Jieyang People’s Hospital (Jieyang Affiliated Hospital, Sun Yat-sen University), Guangdong Province, Jieyang 522000, China
LIU Zu-hong Department of Pathology, Jieyang People’s Hospital (Jieyang Affiliated Hospital, Sun Yat-sen University), Guangdong Province, Jieyang 522000, China
YANG Zan-li Department of Orthopedics, Jieyang People’s Hospital (Jieyang Affiliated Hospital, Sun Yat-sen University), Guangdong Province, Jieyang 522000, China
ZHONG Zhu Department of Radiology, Jieyang People’s Hospital (Jieyang Affiliated Hospital, Sun Yat-sen University), Guangdong Province, Jieyang 522000, China
*Correspondence to: Lin HT, E-mail: 07htlin@163.com
Conflicts of interest None.
Received 2015-11-12 |
Accepted 2015-12-10 |
DOI: 10.12015/issn.1674-8034.2016.01.010 |
DOI:10.12015/issn.1674-8034.2016.01.010. |