Related Experiment Video
Updated: May 2, 2026

A Minimally Invasive, Accurate, and Efficient Technique for Intrathymic Injection in Mice
Published on: August 23, 2022
Giant thymolipoma in an infant
Insights
Thymolipomas, rare benign tumors, can occur in infants, causing respiratory distress. Surgical removal is effective for these anterior mediastinal masses, even in young children.
Area of Science:
- Pediatric Oncology
- Thoracic Surgery
Background:
- Thymolipomas are uncommon benign neoplasms typically diagnosed in adults.
- They are often incidental findings but can grow to massive sizes, causing significant health issues.
Observation:
- A 6-month-old infant presented with respiratory distress.
- Imaging revealed a large anterior mediastinal mass.
Findings:
- The mass was diagnosed as a thymolipoma.
- The infant underwent successful surgical resection of the thymolipoma.
Implications:
- This case highlights that thymolipomas, though rare, must be considered in the differential diagnosis of anterior mediastinal masses in infants.
- Early diagnosis and surgical intervention can lead to favorable outcomes in pediatric cases.
Abstract:
Thymolipomas are benign neoplasms that usually occur in adults and are rarely described in children. They are usually detected incidentally but can be of massive size and lead to respiratory compromise. A 6-month-old boy presented with respiratory distress and an anterior mediastinal mass which proved to be a thymolipoma. He underwent surgical resection and remains well on follow-up. Although rare, thymolipomas should be considered in the differential diagnosis even in infants presenting with an anterior mediastinum mass.
Related Concept Videos
Development of Immunocompetence
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
Primary Lymphoid Organs
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...

