"Motion Capture Suit Sign" for Immunotherapy-Induced Inflammatory Arthritis on 99mTc-MDP Bone Scintigraphy

Dallas Shun-Yu Yew; Chun-Liang Lai

doi:10.1097/RLU.0000000000005591

"Motion Capture Suit Sign" for Immunotherapy-Induced Inflammatory Arthritis on 99mTc-MDP Bone Scintigraphy

Clin Nucl Med. 2025 Feb 1;50(2):179-180. doi: 10.1097/RLU.0000000000005591. Epub 2024 Nov 26.

Authors

Dallas Shun-Yu Yew¹, Chun-Liang Lai²

Affiliations

¹ From the Department of Nuclear Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan.
² Division of Chest and Critical Care, Department of Internal Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan.

PMID: 39774156
DOI: 10.1097/RLU.0000000000005591

Abstract

We report the 99mTc-MDP bone scan of a 44-year-old man with a history of lung adenocarcinoma and recent multiple joint pain after completing pembrolizumab immunotherapy treatment. This interesting image of symmetric uptakes around bilateral joints throughout the skeleton resembles the ball sensors on a motion capture suit. Hence, we recommend naming this distinctive imaging appearance as the "motion capture suit" sign.

Publication types

Case Reports

MeSH terms

Adult
Arthritis* / chemically induced
Arthritis* / diagnostic imaging
Bone and Bones / diagnostic imaging
Humans
Immunotherapy* / adverse effects
Male
Motion Capture
Radionuclide Imaging*
Technetium Tc 99m Medronate*

Substances

Technetium Tc 99m Medronate