1.
Tips on using my ppt.
1. You can freely download, edit, modify and put your
name etc.
2. Don’t be concerned about number of slides. Half the
slides are blanks except for the title.
3. First show the blank slides (eg. Aetiology ) > Ask
students what they already know about ethology of
today's topic. > Then show next slide which enumerates
aetiologies.
4. At the end rerun the show – show blank> ask questions >
show next slide.
5. This will be an ACTIVE LEARNING SESSION x
three revisions.
6. Good for self study also.
7. See notes for bibliography.

2.
Etiology

3.
Etiology
• Congenital
• Acquired.

4.
Etiology
Causes of persistence of sinus /fistula
• Inadequate drainage:
– Small incisios/ Non dependent
• Lined by epithelium
• Granulomatous infections
• Foreign Body
• Malignancy

5.
Clinical Features

6.
Clinical Features
A discharging ulcer that doesn’t heal.

7.
Diagnostic Studies

8.
Diagnostic Studies
• Signogram
• MRI
• Biopsy

9.
Operative Therapy

10.
Operative Therapy
• Lay open the track.
• Treat the cause.

11.
Some Typical Sinuses

12.
Some Typical Sinuses
• Preauricular
• Umbilical: Patent VI duct, Urachal
• Pilonidal
• Suture
• Hydradinitis suppurativa
• Actinomycosis, Madura foot
• Osteomyelitis
• Tuberculosis
• Branchial sinus
• Post I&D

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14.
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