Term
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Definition
fix sections in Davidson's fluid to harden
try not to fix in formalin |
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Term
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Definition
failure of descent of testis into scrotum
horse, pig, dog
genetic etiology
atrophy after puberty and icnreased risk of neoplasia of both testes |
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Term
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Definition
especially occurs in bulls
incomplete development of seminferous tubules
unilateral, bilateral, or partial
inherited disorder
XXY Klinefelter
viral, endocrine, nutritional |
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Term
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Definition
cause of infertility in bulls, boars
must distinguish from seasonal atrophy in some species
incidence increases with age |
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Term
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Definition
unilateral, bilateral, diffuse
spermatocytes and spermatids are most susceptible
necrosis of spermatids and failed maturation of sperm
necrotic debris and multinucleated giant cells in tubules
can have complete breakdown of tubules with formation of spermatic granuloma
due to trauma, infection, vascular impairment, obstruction of sperm flow, toxins, age, nutritional deficiency, neoplasia, exogenous hormones, stress/corticotherapy |
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Term
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Definition
inflammation of the testis
acute-hot swollen painful
chronic-small, hard |
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Term
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Definition
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Term
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Definition
Blastomyces dermatidis
Mycobacterium bovis (rare) |
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Term
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Definition
usually hematogenous origin
ascending infection from the penis/prostate
direct extension from scrotal wound |
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Term
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Definition
Seminoma, Leydig cell tumor, Sertolioma
often multiple tumors
submit the spermatic cord to determine metastasis |
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Term
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Definition
tan/orange
soft, well demarcated
usually don't produce hormones
no metastasis |
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Term
|
Definition
mostly seen in dogs
grey/white
firm, fibrous, well demarcated, lobular
usually produce hormones with feminization
rare metastasis |
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Term
|
Definition
seen in dogs, bulls
derived from mesothelial lining of vaginal tunics
irregular papillary proliferations over testicular tunics |
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Term
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Definition
developmental abnormality in bulls
often unilateral
aplasia of head, tail, or body
leads to edema, testicular degeneration, sperm granuloma |
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Term
| Congenital Cysts of Epididymis |
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Definition
incidental finding
no clinical significance |
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Term
| Noninfectious Epididymitis |
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Definition
most often congential blind ended tubule
dilates and ruptures at puberty leading to inflammation
causes testicular atrophy/degeneration |
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Term
|
Definition
dilation of vein of pampiniform plexus
occurs often in older rams |
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Term
|
Definition
occurs often in stallion
diffuse swelling/enlargement and infarction |
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Term
| Benign Prostatic Hyperplasia |
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Definition
common in intact dogs older than 4
due to chronic androgenic stimulation
bilateral diffuse enlargement of the prostate
obstruction of urinary tract, constipation |
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Term
|
Definition
common in aged dogs
associated with hyperplasia
difficult urination, constipation, hematuria
due to ascending bacterial infection
E.coli, proteus, Brucella
irregular enlargement, abscesses
suppurative inflammation |
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Term
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Definition
Balanitis:inflammation of glans penis
Posthitis:inflammation of the prepuce
bacterial infection secondary to trauma
Campylobacter fetus, Tritrichomonas fetus
herpesvirus
Habronema in horses |
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Term
| Ovine Ulcerative Posthitis |
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Definition
Corynebacterium renale
prepucial ulceration leads to severe inflammation, urinary retention and death |
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Term
|
Definition
frenulum conncet ventral surface of penis to prepuce
no rupture of frenulum at puberty
inable to copulate |
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Term
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Definition
problem especially in the ram
urinary retention, necrosis of terminal urethra, death |
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Term
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Definition
papillomavirus type 1
affects glans penis |
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Term
|
Definition
| can have lymph node metastasis |
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Term
| Transmissible Venereal Tumor |
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Definition
naturally transmitted tumor during coitus
genitalia and skin of both sexes affected
usually regresses spontaneously but may metastasize
round cell tumor |
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