Vaginal, cervical and ovarian pathology (not malignant tumors) Flashcards
Gynecologic tumor epidemiology - incidence
US: 1. endometrial 2. ovarian 3. cervical
Worldwide: cervical is more common (Lack of screening or HPV vaccination)
Gynecologic tumor epidemiology - worst prognosis
- ovarian
- endometrial
- cervical
vaginal tumors
- Squamous cell carcinoma
- Clear cell adenocarcinoma
- Sarcoma botryoides (embryonal rhabdomyosarcoma variant)
vaginal tumors - types and characteristics
- SCC: usually 2ry to cervical SCC (rare 1ry)
- clear cell adenocarcinoma: Women who had exposure to DES in utero
- Sarcoma botryoides: girls under 4. Hist: spindle-shaped cells, desmin (+). Gross: clear, grape-like polypoid mass emerging from vagina
vaginal tumors - SCC
usually 2ry to cervical SCC (rare 1ry)
vaginal tumors - clear cell adenocarcinoma
Women who had exposure to DES in utero
Sarcoma botryoides (embryonal rhabdomyosarcoma variant) - epidemiology and appearance
girls under 4. Hist: spindle-shaped cells, desmin (+). Gross: clear, grape-like polypoid mass emerging from vagina
Cervical dysplasia and carcinoma - definition, location
Disordered epithelial growth. Begins at basal layer of Squamocolumnar Junction (transformation zone) and extends outward
Cervical dysplasia and carcinoma - Classification
CIN 1, CIN 2, CIN 3 (severe dysplasia or carcinoma in situ), depending on extend of dysplasia
cervical dysplasia and carcinoma - pathogenesis
HPV 16, 18 –> both produce E6 (inh p53) and E7 (inh RB)
cervical dysplasia and carcinoma - May progress
slowly to invasive carcinoma i left untreated
cervical dysplasia and carcinoma - presentation
- typically asymptomatic (detected with Pap smear - koilocytes)
- presents as abnormal vaginal bleeding (often postcoital - after sexual intercourse)
cervical dysplasia and carcinoma - Risk factors (MC?)
- Multiple sexual partners (MC)
- Smoking
- Starting sexual intercourse at young age
- HIV infection
Koilocyte
squamous epithelial cell that has structural changes, as a result of infection HPV
Koilocyte - structural changes
- Nuclear enlargement
- Irregularity of the nuclear membrane contour
- darker nucleus (Hyperchromasia)
- perinuclear halo.
cervical invasive carcinoma - type
often SCC
cervical invasive carcinoma - Diagnosis
colposcopy and biopsy
cervical invasive carcinoma - complication
lateranl invasion –> block ureters –> renal failure
Premature ovarian failure - definition
premature atresia of ovarian follicles in women of reproductive age
Premature ovarian failure - presentation and endocrine profile
signs of menopause after puberty but before 40
endocrine profile: low estrogen, high LH, FSH
Polysystic ovarian syndrome is AKA
Stein-Leventhal syndrome
Polysystic ovarian (Stein-Leventhal) syndrome - mechanism
hyperinsulinemia and/or insulin resistance is hypothesized to alter hypothalamic hormonal feedback response –> high LH/FSH –> increased androgen production from theca cells (LH) (–> hirsutism) but low estrogen (no FSH on granulosa), low rate of follicular maturation –> unruptured follicles (cysts) + anovulation
Polysystic ovarian (Stein-Leventhal) syndrome - risk factors
obesity
Polysystic ovarian (Stein-Leventhal) syndrome - image
enlarged, bilateral cystic ovaties