[Radiologic findings in Gorham-Stout syndrome]

Area of Science:

• Medical Science
• Rare Diseases
• Pathology

Background:

• Gorham-Stout syndrome (GSS), also known as idiopathic massive osteolysis, is a rare disorder of unknown cause.
• It is characterized by rapid, localized bone resorption and proliferation of benign vascular structures.
• New bone formation is notably absent in affected areas.

Observation:

• Presents two pediatric cases of Gorham-Stout syndrome.
• Case 1: A six-year-old boy with Gorham-Stout syndrome affecting the right ulna.
• Case 2: A 15-year-old girl with right rib involvement and associated chylothorax.

Findings:

• Both cases exhibited characteristic clinical, histological, and imaging findings consistent with Gorham-Stout syndrome.
• The disease involves progressive osteolysis without compensatory new bone formation.
• Vascular proliferation is a key pathological feature.

Implications:

• Highlights the diagnostic features of Gorham-Stout syndrome in pediatric patients.
• Emphasizes the importance of recognizing clinical, histological, and imaging hallmarks for accurate diagnosis.
• Contributes to understanding the presentation of this rare bone disorder.