title: -Lesser known stress fractures-.
abstract: Stress fractures of the tibia may disclose a longitudinal orientation which is obvious at bone scanning; a mild periostosis may appear on plain films; CT demonstrates a radially-oriented fracture in one aspect of the diaphyseal cortex. A cortical dissection-like vertically oriented insufficiency fracture may involve the medial aspect of the femoral shaft underlying the lesser trochanter; the fracture is concentric to the femoral cortex at CT. Insufficiency fractures of the sacrum may be misdiagnosed on plain films; bone scanning displays a typical H-shaped increased uptake which is a specific pattern. Insufficiency fractures of the pubis may appear as tumoral bone destruction; however no soft tissue mass is present at CT which in addition demonstrates normal fat tissue abutting the osseous lesion.
authors.affiliation: Service de Radiologie Ostéo-articulaire, Hôpital Lariboisière, Paris.
authors.forename: M
authors.initials: M
authors.lastname: Wybier
authors.forename: B
authors.initials: B
authors.lastname: Hamze
authors.forename: P
authors.initials: P
authors.lastname: Champsaur
authors.forename: C
authors.initials: C
authors.lastname: Parlier
mesh_terms: D000273:Adipose Tissue / Q000000981:diagnostic imaging; D001859:Bone Neoplasms / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005264:Femoral Fractures / Q000000981:diagnostic imaging; D015775:Fractures, Stress / Q000000981:diagnostic imaging*; D006801:Humans; D011630:Pubic Bone / Q000000981:diagnostic imaging / Q000293:injuries; D012447:Sacrum / Q000293:injuries; D016103:Spinal Fractures / Q000000981:diagnostic imaging; D013978:Tibial Fractures / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed