CTICasesNormal transversus thoracis muscle mimicking pleural pathology
Imaging findings
CT scan shows symmetric, nodular extrapleural soft tissue densities lining the posterior aspect of the anterior chest wall, representing normal transversus thoracis muscle anatomy.
Key takeaways
The transversus thoracis muscle lies on the inner surface of the anterior chest wall. Hypertrophy or asymmetry of this muscle can mimic pleural plaques, thickening, or extrapleural masses. Symmetry and typical anatomical location help distinguish it from true pathology.
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