2. Abscess
Circumscribed collections of purulent materials (Pus)
found in various locations of the body caused by one of
the four Pus producing bacteria such as Corynebacterium,
Pseudomonas, Streptococcus and Staphylococcus.
Abscess
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3. Parts of Abscess:
1. Wall
2.Pyogenic Membrane
3.Pus (Liquor puris)
Pyogenic wall prevents further spread of
infection and helps in;
Phagocytosis
Granulation tissue formation
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4. Contents of the Pus (Liquor puris):
1. Necrosed tissues
2. Dead bacteria
3. Leukocytes
4. Blood & Tissue proteins.
Pus is alkaline in nature & yellow colored.
N:B= Pus serum will not clot since the fibrin of
exudates is digested by proteolytic enzymes of the
leukocytes.
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5. Classification of Abscess
1. Acute Abscess (Hot Abscess):
Inflammatory symptoms are more active
2. Chronic Abscess (Cold abscess):
Inflammatory symptoms are less active.
Hard with inspissated
Soft with liquid pus and thin abscess wall.
3. Superficial/Deep abscess:
Depending on the location.
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6. Etiology of Abscess
A. Pyogenic organisms like Staphylococci
1. Streptococci
2. Escherichia coli
3. Pseudomonas aeruginosa
B. Specific organisms like
1. Corynebacterium pyogenes
2. Actinomyces bovis
C. Chemicals like
1. HgCl2,
2. ZnCl2
D. Traumatic injury
E. Presence of foreign body
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7. Maturation of abscess
Fomentation – application of heat dry/moist
Iodine ointment application
- Iodex
- Povidone Iodine Oint
Diagnosis
History – from the owner
Examination – of patient
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8. Abscess must be differentiated from:
- Hematoma
- Skin tumor
- Hernia
- Edema
-Cyst
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9. Treatment
• Choose dependent area
• Site preparation
• Open it – blade be directed outward
• Drain out content
• Irrigate cavity with PP
• Pack cavity with Tr. Iodine gauze
• Remove gauze next day
• If swollen – use Mg +Glycerin, Acriflavin gauze
• daily dressing
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14. Hematoma
Collection of blood in the abnormal cavity and usually
caused by injury to the superficial vein
Causes
Damage of superficial vein due to:
Scratching
trauma during coitus
crush injury
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15. Common site of Hematoma
Animal Site cause
cow Mammary vein Butting by calf
cow Vaginal mucous
membrane
Injury during
coitus
Breeding bull Penis Injury during
coitus
Dog, kid, rabbit,
piglet
Ear pinna Injury by
rubbing
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19. Surgical correction of ear Hematoma
Restrain – Light sedation - Xylazine
Plug ear canal – ball of dry cotton
Site preparation – wash the pinna, shave, paint with Tr.
Iodine
Incision – on inner wall of ear –
Remove elliptical piece of skin
Drainage – drain out the clot and serum
Clean the cavity with PP solution
Paint with Tr. Iodine – the cavity – induce inflammation
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22. Clean the wound
Dose of long action antibiotic
Dose of painkiller
Remove the ear plug
Prevent scratching
Elizabethan collar
Post Operative Care
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25. Diagnosis:
- History
- Examination
Treatment :
1. Plug wound with cotton –T-oil
2. Leave it for 5 – 10 min
3. Remove cotton – maggots
4. Repeat step 1 – 3 for 3 times
5. If deep wound leave
cotton -T –oil over night
6. Next day remove cotton / maggots
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26. 7.Clean wound with PP sol
8. Remove necrotic tissue
9. Apply Himax / Ectosep
10. Or Lorexane with fly repellent
11.Repeat steps 7 – 9/10 daily
Note: Farmer may be given this task
If far away from centre
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Avulsion
an open wound in which there is actual loss of tissue.
E.g. horn avulsion, hoof avulsion.
Etiology
Traumatic injury
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Diagnosis
History – from the owner – accident/fight
Examination – of the patient
- loss of horn
- hemorrhage
Treatment
• Control of hemorrhage
• Cleaning & drying
• Place thin layer of cotton
• Apply Tr. Benzoin/Iodine
• Bandage it - Leave it for 3 – 4 days
• On 5th day remove bandage
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Treatment continued….
• If not infected apply antibiotic ointment for 1 – 2 weeks
• Apply coal tar from 3rd week onwards
•Horn may grow few months later or may not grow
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Yoke gall
Gall is localized acute inflammation of skin and
subcutaneous tissue with accumulation of exudate.
e.g. Yoke gall in bull, saddle gall in horse
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Predisposing causes
Young bulls
Bullocks more prone to yoke gall
Rough surface of yoke
Unequal size of bulls
Heavy load for long duration
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Clinical Signs
• Warm painful swelling on dorsal neck
• Swelling may be soft or hard (fibrous)
• Fibrous gall is called tumor
• Gall may become acute or chronic abscess
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Treatment
Maturation indicated if abscess is formed
Incise if not opened
Drain out content – pus
Irrigate cavity with PP lotion
Daily antiseptic dressing
Rest animal until fully recovered
Antibiotic
NSAIDs on alternate days
