Weekly Case

Title : Case 822

Age / Sex : 60 / F


Chief complaint : Newly noted bone lesion on follow up Chest CT

PMHx.
thymoma, type B2 + B1
- s/p Total thymectomy with pericardium, innominate vein and SVC resection (2020-08-06)
- SVC reconstruction with PTFE 14mm graft, pericardium reconstruction with Gore-Tex membrane


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 : 최자영 (Ja-Young Choi), 서울대병원(Seoul National University Hospital)


Diagnosis:

Vanishing bone metastases



Discussion


Findings
Newly noted small radio-opaque nodular lesions in the C6-C7-T1 vertebral bodies on FU CT scan.
No demonstrable focal bone marrow signal abnormalities on MRI

References
1. Kara M, Pradel C, Phan C, Miquel A, Arrivé L. CT Features of Vertebral Venous Congestion Simulating Sclerotic Metastases in Nine Patients With Thrombosis of the Superior Vena Cava. AJR Am J Roentgenol. 2016;207(1):80-6.
2. Thomas N, Oliver TB, Sudarshan T. Vanishing bone metastases--a pitfall in the interpretation of contrast enhanced CT in patients with superior vena cava obstruction. Br J Radiol. 2011;84(1005):e176-8.
3. Fukamizu EMN, Seabra A, Otto DY, Sawamura MVY, Bordalo-Rodrigues M, Helito PVP. Vanishing bone metastasis: pictorial essay. Radiol Bras. 2021;54(5):336-340.



Correct Answer
Total applicants 28 Correct answers 9
Name Institution
김경호 전문의, 전문의
김종혁 전문의
홍상협 전문의
윤유성 순천향대 부천병원, 전문의
장성원 전문의
홍성호 서울대학교병원, 전공의
이혜란 전문의
강지희 전문의
김성진 전문의
Semi-Correct Answer
Total applicants 28 Semi-Correct answers 2
홍혁기 전공의
송윤아 전문의


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