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Benign prostatic hyperplasia

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Pathology of Prostate - Benign
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Benign prostatic hyperplasia

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Benign prostatic hyperplasia is a disease affects men older than 40 years , it means increase in prostate to a level can obstruct urination or making icfections to urinary tract.
Main reference is Robbins basic pathology 9the ed and others

Benign prostatic hyperplasia is a disease affects men older than 40 years , it means increase in prostate to a level can obstruct urination or making icfections to urinary tract.
Main reference is Robbins basic pathology 9the ed and others

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Benign prostatic hyperplasia

  1. 1. BENIGN PROSTATIC HYPERPLASIA NODULAR HYPERPLASIA BY : KHALED H. N. ALKHODARI SUPERVISOR : DR. BELAL DABOUR
  2. 2. PROSTATE ANATOMY
  3. 3. PROSTATE ANATOMY
  4. 4. PROSTATE ANATOMY
  5. 5.  The prostate gland secretes a thin, milky fluid that contains calcium, citrate ion, phosphate ion, a clotting enzyme, and a profibrinolysin.  During emission, the capsule of the prostate gland contracts simultaneously with the contractions of the vas deferens.  30% of semen volume.  A slightly alkaline prostatic fluid  successful fertilization of the ovum. PROSTATE PHYSIOLOGY
  6. 6.  Extremely common abnormality.  It is present in:  20% men >= 40 year.  increases to 70% by age 60 and to 90% by age 80.  Characterized by :  Proliferation of both stromal and epithelial elements.  With resultant enlargement of the gland may  urinary obstruction. PATHOLOGY BENIGN PROSTATIC HYPERPLASIA - BPH
  7. 7.  The cause remains incompletely understood But excessive androgen-dependent growth of stromal and glandular elements has a central role .(DHT).  DHT is 10 times more potent than testosterone.  Does not occur in males:  Castrated before the onset of puberty.  In men with genetic diseases that block androgen activity. PATHOLOGY BENIGN PROSTATIC HYPERPLASIA - BPH
  8. 8. MORPHOLOGY  Always occurs in the inner, transitional zone of the prostate.  Affected prostate is enlarged 60 - 100 g Vs. normal 7 and 16 g.  Contains many well-circumscribed nodules that bulge from the cut surface.  Solid  Contain cystic spaces = dilated glandular elements.  The urethra is usually compressed.
  9. 9. MORPHOLOGY  In some cases, hyperplastic glandular and stromal elements may project into the bladder lumen as a pedunculated mass a ball-valve type of urethral obstruction.
  10. 10.  Microscopically the hyperplastic nodules are composed of  Variable proportions of proliferating glandular elements.  Fibromuscular stroma.  The hyperplastic glands are lined by  Tall, columnar epithelial cells.  Peripheral layer of flattened basal cells.  The glandular lumina often contain inspissated, proteinaceous secretory material = corpora amylacea. MORPHOLOGY
  11. 11. CLINICAL FEATURES  Appears in only about 10% of men with pathologic evidence of BPH.  There is no direct correlation between histologic changes and clinical symptoms.  The most common manifestations are related to lower urinary tract obstruction:  Difficulty in starting the stream of urine (hesitancy)  Intermittent interruption of the urinary stream while voiding.  Later  urinary tract infections , hydronephrosis.  These symptoms frequently are accompanied by:  Urinary urgency, frequency, and nocturia.
  12. 12. TREATMENT  Initial pharmacological  Inhibit DHT formation (Finestride).  Relax smooth muscle by blocking alpha adrenergic blockers (Flomax).  Various surgical techniques are reserved for severely symptomatic cases recalcitrant to medical therapy.

Notas do Editor

  • 2- so that the thin, milky fluid of the prostate gland surrounds the emitted from the vas deference and adds further to the bulk of the semen.
  • Nodular hyperplasia is not considered to be a premalignant lesion.
    incidance
  • Dihydrotestosterone (DHT) is synthesized in the prostate from circulating testosterone by the action of the enzyme 5α-reductase
  • 1-lying just under the epithelium of the proximal prostatic urethra

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