대한근골격영상의학회

Title : Case 836

Age / Sex : 21 / M Chief complaint : palpable mass in right hand 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 : 이승은 (Seungeun Lee), 서울성모병원 (Seoul St. Mary’s hospital) Diagnosis: tenosynovial giant cell tumor Discussion Findings 1. Radiography: bone erosion at third metacarpal base with sclerotic margin 2. MRI: lobulated mass separating the group of flexor tendons, showing low to intermediate SI on T1WI and T2WI, lack of surrounding edema, lesion with focal intense enhancement References 1. Magnetic resonance imaging features of fibromas and giant cell tumors of the tendon sheath: differential diagnosis Eur Radiol 2019;29:3441-3449 2. Tenosynovial giant cell tumors of digits: MRI differentiation between localized types and diffuse types with pathology correlation Skeletal Radiology 2023;52:593-603

Title : Case 836

Age / Sex : 21 / M

Chief complaint : palpable mass in right hand

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 : 이승은 (Seungeun Lee), 서울성모병원 (Seoul St. Mary’s hospital)

Diagnosis:

tenosynovial giant cell tumor

Discussion

Findings
1. Radiography: bone erosion at third metacarpal base with sclerotic margin
2. MRI: lobulated mass separating the group of flexor tendons, showing low to intermediate SI on T1WI and T2WI, lack of surrounding edema, lesion with focal intense enhancement

References
1. Magnetic resonance imaging features of fibromas and giant cell tumors of the tendon sheath: differential diagnosis Eur Radiol 2019;29:3441-3449
2. Tenosynovial giant cell tumors of digits: MRI differentiation between localized types and diffuse types with pathology correlation Skeletal Radiology 2023;52:593-603

Correct Answer
Total applicants	37	Correct answers	15
Name		Institution
김정아		전공의
김종혁		전문의
김경호		전문의, 전문의
박지원		전문의
전예진		전문의
이진영		전문의
홍성호		서울대학교병원, 전공의
오지수		전문의
한영주		전공의
윤유성		무직, 전문의
강지희		전문의
안지영		전공의
류혜선		강동경희대학교병원, 전공의
김형엽		전공의
김성진		전문의
Semi-Correct Answer
Total applicants	37	Semi-Correct answers	5
곽경수		전문의
조숭문		전문의
이혜란		전문의
유현규		국군홍천병원, 전문의
이다경		고려대구로병원, 전공의