Weekly Case

Title : Case 913

Age / Sex : 6 / M


Chief complaint : A palpable lesion, infrapatellar level, anterolateral aspect, with knee flexed position


What is your diagnosis?

Two weeks later, you can see the final diagonosis with a brief discussion of this case (Please submit only one answer)

Courtesy : 김효진 (Kim, Hyo Jin), 보라매병원 (SMG-SNU Boramae Medical Center)


Diagnosis:

Hoffa fat pad herniation



Discussion


Findings
1. a defect in the lateral retinaculum
2. dynamic herniation of infrapatellar fat through the defect, at the fully flexed knee

References
1. Chauvin NA, Khwaja A, Epelman M, Callahan MJ. Imaging findings of Hoffa's fat pad herniation. Pediatric radiology. 46 (4): 508-12.
2. Kim JS, Yun SJ, Jin W, Kim GY, Park SY, Park JS, Ryu KN. A Focal Defect at the Lateral Patellar Retinaculum on Clinical Knee MRI and Cadaveric Study: A Normal Variant or Pathologic Lesion?. AJR. American journal of roentgenology. 208 (5): 1103-1109.



Correct Answer
Total applicants 20 Correct answers 14
Name Institution
고일권 전문의
윤정택 전공의
김정아 전문의
조서범 전공의
곽경수 전문의
최형인 전문의
전예진 전문의
이규정 고려대학교 안암병원, 전문의
홍상협 전문의
김지환 전문의
김연정 전문의
박서영 전문의
도윤아 전문의
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