Things to Learn Flashcards
what is the most common cancer in men
prostate
What do LHRH analogues do
LHRH analogues (also called GnRH analogues) act by desensitizing LHRH receptors in the pituitary gland, which in turn prevents the secretion of luteinizing hormone (LH), causing the body’s androgen levels to drop in the long term
How is prostate cancer linked to normal influences
Hormonal influences – prostatic adenocarcinoma is androgen sensitive because castration with surgery or LHRH analogues is associated with disease regression.
- binding of androgens induces the expression of growth factors and growth factor receptors which stimulate the progressive growth of the cancer
what other conditions cause a raised PSA
Benign prostatic hypertrophy (BPH), prostatitis, urinary tract infections (UTI), trauma etc.
what is the gold standard for diagnosis Prostate cancer
Trans Rectal Ultrasound Guided Biopsy
How does the Gleason score work
Therefore a combined Gleason Grade score is used which is the sum of:
- The most common grade
- The highest/dominant grade
what can CT be used to assess in cancer
- stage of the disease and how much it has spread
what are the symptoms of a testicular torsion
Swollen, tender and erythematous testicle
Black internally
Black externally
Necrosis which also extends into the spermaticord
what is an orchiopexy
– surgical attachment of testes to scrotum to fix them into position
what do Sertoli cells do
– support cells involved in regulating spermatogenesis, spermiogenesis, blood-testes barrier, hormone production, tubular fluid secretion and phagocytosis of spermatid cytoplasm.
what do leydig cells do
– are located in the intersitium and synthesise testosterone
what are the risk factors for a seminoma
Undescended testes - poor histological development due to exposure to high temperature.
Infant hernia (indirect inguinal)
Rare genetic conditions
describe seminoma
Macroscopic Hard Well circumscribed Pale/ White mass Lobular Homogenous
Microscopic
- Nuclear pleomorphism
- Prominent nucleoli
- Clear cytoplasm
- Well defined cell boundaries
what serum marker are used for what tumours in men
Seminoma – PLAP (Placental Alkaline Phosphatase)
Choriocarcinoma – hCG (human chorionic gonadotrophin)
Yolk sac tumours – AFP (alpha-fetoprotein)
Embryonal carcinoma - Oct4
What does cervical screening involve
Cervical screening involves taking a sample of epithelial cells from the transformation zone using a brush or a spatula, applying/smearing this to a slide and then staining with a Papanicolaou stain (Pap)
what are the types of cervical cancer
80% squamous cell carcinoma
15% adenocarcinoma
describe characteristics of kilobytes
Nuclear enlargement
Nuclear hyperchromasia (darker nuclei)
Peri-nuclear halo
what does a women above 35 breast look like
Older women (>35 years) – undergo changes to breast tissue as fibrous tissue in the breast gets replaced by adipose tissue which is more radiolucent (passes more X-rays) through it, hence a mammogram increases the sensitivity for the detection of a lump.
what two techniques are used to find an adenoma
ultrasound
mammogram
can also use a fine needle aspiration for cytology
describe a fibroadenoma
Commonest benign breast tumour
<30 years
Arises in the breast lobule
Firm, smooth, mobile lump - ‘breast mouse’
Painless
Benign overgrowth of collagenous tissue within the lobule
Can have multiple in one breast
What are the symptoms of ovarian cancer
- bloating
- feeling full quickly while eating
- pelvic or abdominal pain
- urinary urgency
- abdominal vaginal bleeding or discharge
- back pain
Name the three types of epithelial tumours
Serous
Mucinous
Endometroid
what are the three sex cord stomal cells
Granulosa cell tumour
Thecoma fibroma
Sertoli-Leydig cell tumour
what is the surgery of ovarian cancer
Total Abdominal Hysterectomy and Bilateral Salpingo-oopherectomy