Exam 2 Flashcards
Cystic ovarian dz (follicular cyst)
- LH surge/ovulation fails, follicle continues to grow (size dependent)
- high producing dairy cows w/ neg energy balance
Lutenized follicular cyst vs. cycstic corpus luteum
LFC - pathalogical anovulatory follicle w/ luteinized wall, common in cows, causes aggression
CCL- normal post-ovulatory structure, part of CL cycle
Granulosa-theca cell tumor (GTCT)
Mares (w/ behavior changes, persistent estrus or anestrus)
Tumor secretes excess hormones
Benign but rupture = hemoabdomen
theca cells
produce androgen, testosterone in response to LH
granulosa cells
converts androgen into estrogen in response to FSH
produces progesterone after follicle is lutenized
negative feedbacks to suppress FSH
neoplasm commonly seen in high-producing poultry
avian ovarium carcionomatosis
that metastasized throughout coelom
What is the female version of a seminoma?
dysgerminoma
rare but typically malignant
CEM (cystic endometrial hyperplasia)
- intact older queens, bitches
- abberant cycle, CL persists + progesterone –> hyperplastic endometrium –> mucous/fluid –> endometritis
Hydro/mucometra vs. pyometra
H/M - mucous or fluid accum but no infection, secondary to CEM/obstruction
Pyo - open or closed, infection
Contagious equine metritis
Taylorella equineitalis
coitus, highly contagious
Common neoplasm in rabbits
endometrial carcinoma
due to prolonged estrogen stimulation
most common uterine tumor of female goats
leiomyoma/myosarcoma
smooth muscle myometrium, cervix, vagina neoplasm
Also see in german shepherds
5 common sites of BLV-induced lymphosarcoma
uterus abomasum retrobulbar space extradurally within spinal canal heart
Vulvovaginitis in F
Balanoposthitis in M
EQ - EHV 3
BOV - BHV 1
dog - CHV-1
AGASACA
anal gland anal sac adenocarcinoma
hypercalcemia
often metastasizes to regional nodes
What disease has round, intercytoplasmic vacuoules in cells
transmissible venereal tumor (contagious round cell neoplasm)
most common cause of inflammation in male repro parts
bacterial
brucella - zoonotic and abortive, likes to cause prostatitis
Leydig cell tumor
yellowish, firm-semi firm, +/- hemorrhage
benign - only sign it’s there is when it gets big
Sertoli cell tumor
dogs, budgies get avian form
Firm, fibrous, doesn’t bulge on cut, pale tan
produces estrogens (alopecia, benign prostatic hyperplasia, gynecomastia)
Inhibins cause atrophy of contralateral testicle (decreased testosterone)
Usually benign, things normal when removed
most common tumors in cryptorchid
Seminoma
most common testicular tumor in stallions
Round cell tumor of testis
soft, tan to pink, bulges on cut section
Prostatic neoplasia
urothelial carcinoma common in dogs >10 yrs
prostatic adenocarcinoma rare in dogs, common in hum
often aggressive, metastatize
castration increases risk
enzootic posthitis/balanoposthitis
pizzle/sheath rot
rams
C. renale
Increased protein in diet –> increased urea, hydrolyzed by c. renaled –> ammonia causing local irritation
Masculinization
XY, Sry gene –> TDF (testis determining factor) –> sertoli cells develop –> testosterone = wolfian duct becomes male parts, Anti-mullerian hormone = no feminization
Kleinefelter syndrome
XXY
tortoise shell or calico - only female cats
