BenignSoft tissue
Lymphangioma
Synonyms: Cystic hygroma, Lymphatic malformation, Cavernous lymphangioma
Benign lymphatic malformation
Quick Facts
Behaviour
Benign
Category
Soft tissue
Synonyms
- Cystic hygroma
- Lymphatic malformation
- Cavernous lymphangioma
Category
Soft tissue
Behaviour
Benign
Gender
M = F
Tissue of Origin
Vascular
Epidemiology
- Benign developmental anomaly of lymphatic vessels
- Often presents in childhood, can be congenital
- No Malignant potential
- Can spontaneously regress
Clinical Features
- Painless swelling in head and neck (75%) or axilla
- Soft, compressible mass
- May transilluminate
- Can become infected or inflamed
- Risk of respiratory compromise if cervical
Location
- Neck (posterior triangle most common)
- Axilla
- Mediastinum
- Retroperitoneum
- Pelvis
Imaging
- Ultrasound shows multiple anechoic cysts
- MRI shows fluid-filled cavities with no enhancement
- No mass effect despite size
- T2 hyperintense, T1 hypointense
Pathology
- Thin-walled lymphatic channels
- Endothelial lining
- Fluid-filled cystic spaces
- No smooth muscle in walls
Genetics
- Sporadic in most cases
- Associated with Noonan, Turner, Down Syndromes in some
- No specific genetic alteration
Treatment
- Observation if asymptomatic
- Surgical excision if symptomatic or cosmetically concerning
- Sclerotherapy for cystic lesions
- Medical management of complications
Prognosis
- Excellent prognosis
- No Malignant transformation
- Risk of recurrence after incomplete excision
- Some spontaneous regression possible
Key Points
- Benign lymphatic malformation
- Often congenital but can present later
- Observation reasonable if asymptomatic
- Excellent prognosis with appropriate management
Workup - Local Imaging
- Ultrasound for initial assessment
- MRI for extent and relationship to surrounding structures
Follow-up Summary
- 1
Imaging surveillance if managed conservatively
- 2
Clinical assessment for complications
- 3
No long-term oncologic Follow-up needed
Medical disclaimer
The content on Sarcopedia is for educational and informational purposes only and does not constitute medical advice. It is not intended to be a substitute for professional medical diagnosis or treatment. Always consult with a qualified physician regarding any health concerns or before starting any new treatment. Reliance on any information provided on this site is solely at your own risk.