Among swelling lipoma is a common condition. These presentation help in understanding lipoma.

3. Lump
A lump is a vague mass of body tissues
Swelling
Any protuberance or enlargement of body part

4. Tumor (neoplasia)
A tumor is an abnormal mass of tissues the growth of
which exceed and uncoordinated with that of normal
tissues and persist in the same excessive manner after
cessation f stimuli which evoked the changes , which
is virtually autonomous, preys on host.

6. Definition
Benign tumor of mature fat cell
Type
According to presence of capsule
According to anatomical location
According to histology- Lipoma
Fibrolipoma
Neurolipoma
Naeveolipoma

7. According to presence of capsule
Encapsulated lipoma
Diffuse lipoma
According to anatomical location
Subcutaneous
Subfascial
Subserosal
Intramuscular
Subsynovial
Intraarticular

8. Some notes
Pleural form – Lipomatosis
Called also universal tumor – because it can occur in all part
of body.
It occur in all part except –
Tip of nose
Cartilaginous part of ear
Brain
Shaft of penis
Eyelid

9. Common site encapsulated lipoma
Neck
Back
Shoulder
Upper limb

10. Lipoma may undergo malignant change
Retoperitoneal
Thigh
Shoulder
In these site lipoma may undergo malignant change

11. re
Clinical feature
Painless swelling
Discomfort
Causes of painful lipoma
Dercum disease
Neurolipoma

12. u
Examination finding
A globular swelling in … … …(e.g. back) which is about … … cm
in size, temperature not raised, nontender, surface lobulated,
soft in consistency, margin well defined, slip sign positive,
overlying skin free, swelling not attached with dipper
structure, freely mobile. It is not-fluctuant, transillumination
test negative. Regional lymph not enlarged.
So my diagnosis- subcutaneous lipoma in back.

13. Differential diagnosis
Neurofibroma
Sebaceous cyst
Hemangioma
Fibroma
Lipoma is fixed when fat necrosis occur

14. Complication of lipoma
oHuge size and mechanical discomfort
oHemorrhage
oInfection
oMyxomatous degeneration
oMalignant conversion

15. Dercum disease
Tender deposition of fat especially on trunk

16. Diagnosis
History
Examination finding
Investigation – FNAC
X- Ray of regional area

17. Management
Surgery
Excision under local anesthesia
In some case require general anesthesia – diffuse
lipoma , very large size.