title: Os trigonum syndrome on bone SPECT/CT.
abstract: A 16-year-old female athlete presented with increased pain in the distal left lower extremity. A possible stress fracture or shin splint of the left tibia was first considered. A 3-phase bone scintigraphy showed a very small focus of increased activity in the posterior left foot. A diagnosis of os trigonum syndrome was made after SPECT/CT images pinpointed the activity at the left os trigonum.
authors.affiliation: From the *Department of Nuclear Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China; and †Department of Radiology, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA.
authors.forename: Jianmin
authors.initials: J
authors.lastname: Huang
authors.forename: Sabah
authors.initials: S
authors.lastname: Servaes
authors.forename: Hongming
authors.initials: H
authors.lastname: Zhuang
mesh_terms: D000293:Adolescent; D005260:Female; D015775:Fractures, Stress / Q000000981:diagnostic imaging*; D006801:Humans; D058923:Medial Tibial Stress Syndrome / Q000000981:diagnostic imaging*; D064847:Multimodal Imaging; D013628:Talus / Q000000981:diagnostic imaging* / Q000293:injuries; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed