Path- Repro- Male Gential 2

untimely's version from 2015-05-09 21:40

Scrotum/Seminal Vesicles/prostate

Question Answer
Scrotal lesions can lead to... what two things?thermoregulatory problems and testicular degeneration
inflammatory lesions of the scrotum akascrotal dermatitis
(long notes) dermatitis of the scrotum--> two pathogens that prefer the scrotum (and in who)bacterium Dermatophilus congolensis in the bull and the mite Chorioptes bovis in the ram.
neoplasia of the scortum is most often in who? 3 main types?DOGS, melanoma, mast cell tumor, hemangioma
Frost bite of the scrotum leads to what? what happens as a sequale?leads to dry gangrene with secondary fibrosis. Testicles forced up close to body as the scrotal lesion heals and matures
what is Tunica vaginalis?extension of peritoneal cavity which goes into the scrotal sac (There is a parietal layer covering the inner aspect of the scrotum and a visceral layer covering the testicle, epididymis and spermatic cord. The space between the two layers is the tunica vaginalis.)
what is Hydrocele?accumulation of fluid in scrotum (tunica vaginalis)
what is Chylocele?accumulation of lymph in scrotum(tunica vaginalis)
what is Hematocele?accumulation of blood in scrotum(tunica vaginalis)
what is Periorchitis?this is inflammation of tissues surrounding testicle (including scrotum) and occurs with orchitis
what is Mesothelioma? where is it? who does it affect?neoplasm arising from mesothelium of peritoneum (so, tunica vaginalis) old bulls and to a lesser degree old dogs
Segmental aplasia of the Seminal Vesicles happens why, what do they look like?Wolffian duct defect, glands distorted and cystic, secondary inflammation
Seminal vesiculitis is caused by what? (common in who?)infection with a variety of infectious organisms. Brucella sp. (not so much any more) Trueperella pyogenes, Staph., Strep., Mycoplasma. Commonly have chronic interstitial seminal vesiculitis with widespread fibrosis and squamous metaplasia. (common in the bull)
Diseases of Prostate most often occur in who?dogs
atrophy of the prostate often happens when? (2)commonly follows castration, occurs as animal ages (lack of androgenic stimulation)
Hyperplasia/hypertrophy of the prostate usually happens why? what are the two possibilities and outcomes of these possibilities?usually hormone related but not completely understood. (1) Androgen excess leads of acinar hyperplasia (2) estrogen excess leads to fibromuscular hypertrophy (and prostatisis to go along with it) (NOTE: An altered testosterone/estrogen ratio appears to underlie prostatic hyperplasia in dogs. Estrogens are believed to act synergistically with testosterone to cause the hyperplasia/hypertrophy of the prostate gland.)
Squamous metaplasia of the prostate most often happens when?commonly follows estrogen excess with Sertoli cell tumors. Metaplasia of epithelium of pancreatic glands, ducts, and prostatic urethra. Sloughing of metaplastic epithelium with plugging of glands/ducts. Secondary inflammation.
(didn't emphasize)Squamous metaplasia of the bulbourethral gland happens to who, and when? how is the gland affected?In castrated sheep (wethers) grazing clover pasture with a high estrogen content there is hypertrophy, squamous metaplasia and cysts in bulbourethral gland.
Prostatitis is usually caused by what??Usually bacteria which ascend from urinary tract
what are some bacteria which ascend from urinary tract to cause prostatitis? (4)Proteus, E. coli, Staph. Strep
Prostatitis is often secondary to..hyperplasia/metaplasia
who gets prostatitis most often? what is a common problem resulting from this?Older dogs... can be painful and lead to constipation
how does acute prostatitis usually present? chronic?Acute (abscessation) to chronic (fibrosis)
how can you treat prostatitis?Castration removes trophic hormones and gland will undergo atrophy.

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