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| + | ==Pathology of external genitalia== |
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− | ===Pathology of external genitalia=== | + | ===Congenital abnormalities of the penis=== |
| + | * '''Absence of penis''':usually seen only as part of a major whole-body malformation. |
| + | * '''Micropenis''':seen in bulls (malformation of sigmoid flexure). Also some dogs. |
| + | * '''Persistent penile frenulum''':bulls and dogs. Associated with cork screw or deviation of penis. |
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− | *CONGENITAL ANOMALIES OF PENIS | + | ===Congenital abnormalities of the prepuce=== |
− | #Absence of penis:usually seen only as part of a major whole-body malformation.
| + | * '''Absence or agenesis''':may be associated with pseudo-hermaphroditism. |
− | #Micropenis:seen in bulls (malformation of sigmoid flexure). Also some dogs.
| + | * '''Absence of preputial orifice''':seen in pups. |
− | #Persistent penile frenulum:bulls and dogs. Associated with cork screw or deviation of penis.
| + | * '''Phimosis''':small preputial orifice, penis cannot be extruded from prepuce. |
| + | * '''[[Paraphimosis]]''': prepuce can be drawn behind the glans but cannot return after erection). |
| + | * '''Hypospadias/epispadius''':failure of anatomical closure of prepuce and/or urethra. |
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| + | ===Inflammation=== |
| + | * '''Posthitis''':inflammation of prepuce |
| + | * '''Balanitis''':Inflammation of glans penis |
| + | * '''Balanoposthitis''':usual for both to be involved |
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− | *CONGENITAL ANOMALIES OF THE PREPUCE
| + | Dogs:suppuration and/or ulceration due to E. coli, Proteus or Haemophilus spp. |
− | #Absence or agenesis:may be associated with pseudo-hermaphroditism.
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− | #Absence of preputial orifice:seen in pups.
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− | #Phimosis:small preputial orifice, penis cannot be extruded from prepuce.
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− | (Paraphimosis - prepuce can be drawn behind the glans but cannot return after erection).
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− | #Hypospadias/epispadius:failure of anatomical closure of prepuce and/or urethra.
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− | *INFLAMMATION
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− | #Posthitis:inflammation of prepuce
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− | #Balanitis:Inflammation of glans penis
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− | #Balanoposthitis:usual for both to be involved
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− | <br>Dogs:suppuration and/or ulceration due to E. coli, Proteus or Haemophilus spp.
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| <br>Bulls:IBR virus causes ulceration which may become secondarily infected. | | <br>Bulls:IBR virus causes ulceration which may become secondarily infected. |
| <br>Rams and wethers:occlusion of the urethral appendage as a result of calculi causing a necrotising lesion of the glans ± urethral rupture and subcutaneous leakage of urine. | | <br>Rams and wethers:occlusion of the urethral appendage as a result of calculi causing a necrotising lesion of the glans ± urethral rupture and subcutaneous leakage of urine. |
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− | *NEOPLASIA | + | ===Neoplasia=== |
− | #Transmissible fibropapilloma:seen in bulls, bovine papillomavirus type 2.
| + | * '''Transmissible fibropapilloma''':seen in bulls, bovine papillomavirus type 2. |
| Multiple luxuriant growths, painful, easily traumatised. Transmissible to females. Spontaneous regression. | | Multiple luxuriant growths, painful, easily traumatised. Transmissible to females. Spontaneous regression. |
− | #Squamous cell carcinoma:seen in geldings.
| + | * '''Squamous cell carcinoma''':seen in geldings. |
| Less common in bulls and dogs, low-grade malignancy may ulcerate and haemorrhage. | | Less common in bulls and dogs, low-grade malignancy may ulcerate and haemorrhage. |
− | #Melanoma:occurs on prepuce and scrotum of grey horses. Often benign.
| + | * '''Melanoma''':occurs on prepuce and scrotum of grey horses. Often benign. |
− | #Transmissible venereal tumour:seen in dogs and bitches.
| + | * '''Transmissible venereal tumour''':seen in dogs and bitches. |
− | #Sarcoids:equine prepuce
| + | * '''Sarcoids''':equine prepuce |
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| [[Category:To Do - Reproductive]] | | [[Category:To Do - Reproductive]] |
| [[Category:Male Reproductive System - Pathology]] | | [[Category:Male Reproductive System - Pathology]] |
| + | [[Category: To Do - Siobhan Brade]] |