Complex lymphatic malformation can affect the bones. Bone involvement can range from mild changes to more significant bone weakening, and not all patients experience bone-related complications.
How Bones May be Affected
Bones are living tissue and are constantly changing through a normal process called bone remodeling, which balances bone breakdown and bone formation. In complex lymphatic anomalies, abnormal lymphatic vessels invade the bone and disrupt this balance, favoring bone destruction. Over time, this can lead to:
- Thinning or weakening of bone
- Areas of bone loss (sometimes called osteolysis)
- Changes in bone structure that affect strength or stability
The extent and pace of these changes vary widely from person to person.
Possible Symptoms
Some people with bone involvement have no symptoms, while others may experience:
- Bone pain or tenderness
- Swelling near affected bones
- Reduced strength or stability
- Fractures
Symptoms depend on which bones are involved and how much the bone structure is affected.
Where Bone Involvement Can Occur
Bone involvement can affect different parts of the body, including:
- The spine
- Ribs or chest wall
- Skull or facial bones
- Arms or legs
In Gorham–Stout Disease, bone involvement may be progressive and can affect one bone or multiple bones.
How Bone Involvement is Evaluated
Imaging plays an important role in identifying and monitoring bone involvement. Tests may include:
- X-rays to assess bone structure
- MRI to evaluate bone and surrounding soft tissues
- CT scans to provide detailed images of bone changes
Additional testing may be recommended based on symptoms and imaging findings.
Management and Monitoring
Management depends on:
- Which bones are affected
- The extent of bone involvement
- Symptoms and fracture risk
Some individuals are monitored over time, while others may need treatment to manage pain, support bone strength, or reduce complications.

