BenignSoft tissue
Lipoma
Synonyms: Simple lipoma, subcutaneous lipoma
Most common Benign soft tissue tumour
Quick Facts
Behaviour
Benign
Category
Soft tissue
Synonyms
- Simple lipoma
- subcutaneous lipoma
Category
Soft tissue
Behaviour
Benign
Gender
M = F
Tissue of Origin
Adipose
Epidemiology
- Most common Benign soft tissue tumour
- Peak incidence 4th-6th decades
- Often multiple
- Familial clustering in some families
Clinical Features
- Soft moveable subcutaneous mass
- Painless
- Slow-growing
- Cosmetic concern
Location
- Subcutaneous tissue
- Back (most common)
- Shoulder
- Forearm
- thigh
Imaging
- Ultrasound: hyperechoic mass
- MRI: T1 bright, suppresses on fat-sat
Pathology
- Mature Adipose tissue
- No atypia
- Thin Fibrous capsule
Genetics
12q13-15 rearrangements in some
Treatment
- Observation for asymptomatic lesions
- Excision for cosmetic reasons or if symptomatic
Prognosis
Excellent - no malignant potential
Key Points
- Most common Benign soft tissue tumour
- No Malignant transformation
Workup - Blood Tests
No tests required
Workup - Local Imaging
- Clinical diagnosis usually sufficient
- MRI if diagnostic uncertainty
Workup - Biopsy
Not required if typical imaging
Workup - Staging
Not applicable
Workup - Other
Excision curative and cosmetically acceptable
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.