Prostate Flashcards
the two layers of epithelial cells in prostate glands
luminal secretory cells (PSA, PAP+); basal cells (HMCK+)
what is the prostate made of other than glands?
fibromuscular stroma
benign prostatic tissue will stain positive with?
HMW keratin (stains basal cells which are absent in malignancies)
in which zone do most carcinomas rise? Hyperplasias?
peripheral (posterolateral); transitional
this hormone is required for prostatic hyperplasia and carcinoma
DHT
testosterone is converted to DHT by?
5 alpha-reductase
types of prostate specimens
needle biopsies (dx), transurethral resections (tx obstruction), suprapubic prostatectomy (tx obstruction, leave peripheral zone), radical prostatectomy (tx carcinoma)
prostatitis is a (pathological/clinical) diagnosis
clinical (rarely biopsied)
granulomatous prostatitis mimics ____ and is due to?
cancer (by increasing PSA); ruptured ducts cause irritation and are walled off
complications of untreated BPH
hydroureter, hydronephrosis, renal failure
in BPH, glands are?
nodular and hyperplastic (and large with lots of white space)
BPH treatment
usually medical; can do cryo, RF ablation, TURPs
prostate cancer is highly prevalent, but most people?
die with it rather than of it
who has highest prostate cancer death rate in the world
African American men
precurser to prostate cancer
prostatic intraepithelial neoplasia (proliferation of malignant cells)
downsides to PSA screening for prostate cancer
lots of false positives
diagnosis of prostate cancer
usually needle core biopsies (TURP more often to tx BPH but may incidentally find cancer)
98% of prostate carcinomas are?
adenocarcinoma
microscopic appearance of adenocarcinoma of the prostate
small glands, more compact than normal, lack of basal cell layer, prominent nucleoli, PSA+
histologic grading of prostate cancer is?
Gleason score: sum of two most prevalent patterns graded 1-5
tx of prostate cancer
radical prostatectomy or radiation, pathology evaluates type, grade, and stage of cancer
common sites of prostate cancer mets
regional LNs, bone
common locations of bone mets
axial skeleton, ribs, pelvis
how do you recognize cancer on a fine needle aspirate?
cells stick together (according to Hadler)
purpose of prostate
secrete bacteriocidal fluid into semen to liquify it and activate sperm