A sebaceous cyst is a type of cystic swelling. Its common site is at the skin of the scrotum, scalp, back site etc. The treatment is excision

1. Sebaceous cyst
[ सेबेससयस ससस्ट]
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2. What is cyst ?
The term CYST derived from Greek word
means “bladder”.
Soft fluctuant swelling containing fluid in a
sac lined by epithelium or endothelium.
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3. Type of cyst
True cyst - dermoid
epidermoid, brachial,
sebaceous cyst.
False cyst – Exudation cyst,
degeneration cyst
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Congenital cyst
Acquired cyst- Retention cyst,
distension cyst, exudation cyst,
degeneration cyst, cystic tumours,
Implantation dermoid, traumatic cyst,
parasitic cyst

4. Sebaceous cyst
Sebaceous glands – Skin glands, secretes sebum
Sebum – Keeps the skin soft and oily
Sebaceous duct – mainly open at hair follicle and some at
skin
Sebaceous cyst – swelling at skin, arising from sebaceous gland, filled
with SEBUM/yellowish fluid/pultaceous material, lined by squamous
epithelium
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When the S. duct blocked, the S.gland starts to distend with their own
secretion and appear as cystic swelling- Sebaceous Cyst.

5. Clinical feature of sebaceous cyst
Swelling = spherical, Typical cystic
Swelling,
• Size variable – mm to 5 cm
• Smooth surface of swelling
• Skin fixed, unable to lift
• Non tender (tender when infected)
Punctum -Bluish spot present –
characteristic feature
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6. Site of Sebaceous cyst
Site – Anywhere in body except palm & sole.
Common site – Scalp, Scrotum, Back, face,
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7. Diagnosis
Mostly diagnose – clinically
On the basis of clinical examination
Charactreistic swelling
Presence of punctum
TRANSILLUMINATION test negative
Fluctuation test positive in big cysts.
Free from underlying skin(easily movable)
Presence of ulceration, horn,
calcification in later cases
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8. Complications of Sebaceous Cyst
Infections – more prone to infection
Ulceration – after rupture of infected
cyst
Sebaceous horn – due to slow
discharge of sebum hardens
Calcification – rarely, in scrotal site
Malignancy – Rarely, in form of basal
cell carcinoma
Infected
Infected Ulcerated
Sebaceous horn Sebaceous horn17-09-2020 Sebaceous cyst- Dr Mahesh Kumar 8

9. Management
Surgical treatment is treatment of choice
Procedure – Total Excision with removal of sac
Excision under Anaesthesia/Local Anaesthesia
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In infected cases- Antibiotic
therapy then excision
Dissection method
Incision-avulsion technique

10. OperativeSteps
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11. -Thanks for patience watching…
- Queries and suggestions/comments welcome……..
Thank you
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Disclaimer - The video lecture is for educational purpose only
धन्यवाद ॥