Cervical cancer Flashcards
2 main HPV species and what they cause
16- SCC
18- Adenocarcinoma
Risk factors of HPV infection x5
Early sex debut
Multiple sexual partner
Immunosuppression
High parity
Smoking
History of STIs
Describe the oncogenes involved in HPV infection and what they suppress
E6- p53 tumor suppressor gene
E7- Rb retinoblastoma tumor suppressor gene
Pathogenesis of HPV infection
HPV integrates into human genome>
1. Cell immortalization and rapid turn over of epithelial basal cells
2. Upregulation of E6 & E7
Clinical features of CeCA x5
AUB
AVD
Dyspareunia
Lymphedema
Fistula formation
State 2 fistulas formed in CECA
Vesicovaginal
Rectovaginal
Investigations for CECA x4
Colposcopy - VIA, VILI
CYtology - Liquid based cytology, Pap smear
HPV DNA testing
3 types of cervical biopsies
Punch biopsy
Cone biopsy
Endocervical curettage
Indications of cervical biopsy x3
Suspicion of adenocarcinoma
Non pregnant women with inconclusive colposcopy
Positive screening test w/o visible lesion
Treatment of CECA x3
Surgery
Chemotherapy
Radiotherapy
Which stage of CECA gets pelvic exenteration
4A
Which stage is trachelectomy done
1A1- 1B
MOA of cisplatin and its 2 effects
Prevents replication of tumor cells
Nephrotoxicity, Peripheral neuropathy
Which stage is hysterectomy done
1A1- 2A
Organs of metastases, local(3) distant (4)
Distant- bones, lungs, liver, brain
Local- Bladder, Rectum, Vagina
Prevention of CECA x4
VIA
Avoid smoking
HPV immunization
Safe sex/ abstinence
Define screening
The presumptive recognition of unrecognized disease by means of tests and examinations that can be applied rapidly
Define screening program
A comprehensive disease control activity based on identification and treatment of persons with unrecognized disease
Define screening test
Specific technology used to identify persons with unrecognized disease
Lymph nodes draining the cervix x4
External iliac
Internal iliac
Rectal
Sacral
Blood vessels of the cervix
Uterine artery and veins
Nerve supply to cervix and where it’s from
Uterovaginal nerve plexus from inferior hypogastric plexus