Chest Wall Masses
Chest wall masses can arise from the ribs, breastbone, cartilage, muscle, fat or connective tissue. They may be benign growths or malignant tumors. Some represent spread from an adjacent organ or metastases from another tumor. They are assessed separately from chest deformities such as pectus conditions.
Draft awaiting medical review · General information; not a substitute for an individual consultation and assessment.
Content updated: 22 October 2026 · Last physician review: not yet completed.
Which tissue does the mass arise from?
Chest wall masses can arise from the ribs, breastbone, cartilage, muscle, fat or connective tissue. They may be benign growths or malignant tumors. Some represent spread from an adjacent organ or metastases from another tumor. They are assessed separately from chest deformities such as pectus conditions.
Which findings need investigation?
A newly noticed or growing swelling, a firm lump, persistent pain or discomfort with movement requires examination. Absence of pain does not necessarily mean a mass is benign. Previous cancer, radiotherapy, surgery and trauma influence assessment.
Imaging and planned biopsy
CT helps assess bone involvement and relationships within the chest; MRI may help evaluate soft tissue extension when needed. The biopsy method and sampling route are planned with subsequent treatment in mind. Removing a suspicious mass without a diagnostic plan can complicate later surgery. Pathology is important for a definitive diagnosis.
Treatment and multidisciplinary decisions
Treatment depends on the mass’s type, location, size and extent. Monitoring may be considered for some benign lesions. For tumors requiring surgery, removal with appropriate margins is the aim. Selected malignant tumors may require chemotherapy or radiotherapy before or after surgery.
Chest wall reconstruction
Extensive resections may remove parts of the ribs, breastbone or muscle. Reconstruction using mesh, plates or the person’s own tissue may be needed to support breathing mechanics and protect organs. The method depends on the location and size of the resulting defect.
Risks and follow-up
Bleeding, infection, pain, breathing problems, delayed wound healing and problems related to implanted materials may occur. Pathology determines whether additional treatment is needed. Follow-up is individualized to monitor recurrence risk and functional recovery.
Frequently asked questions
Is every chest wall swelling cancer?
No. The cause is established through examination, imaging and biopsy when needed.
Does every operation require a plate or mesh?
No. Reconstruction needs depend on the amount and location of tissue removed.
Learn about chest wall deformities →
Further reading
Patient information sources · Sources checked: 22 October 2026. Checking sources does not mean the text has been medically approved by the physician.