Cancer of the Lower Genital Tract Flashcards
Which less common cancers can be caused by high-risk HPV?
Cervical Penile Vulval/vaginal Anal Oral Oropharangeal
Which types of HPV are related to cervical cancer?
16 and 18
Risks factors for cervical cancer
Peak age 45-55 years
HPV related (16 & 18) - and factors related to increased chance of infection
Smoking
Cervical cancer symptoms
Abnormal vaginal bleeding Post coital bleeding Intermenstrual bleeding/PMB Discharge (Pain)
Diagnosis of cervical cancer
Screen detected
Biopsy
What is the aim of screening?
To detect pre-cancerous disease, not cancer
CIN
Cervical intraepithelial neoplasia
What is CIN?
Cervical dysplasia
What type of cancer is it if the tumour invades stroma?
Squamous cell carcinoma
What are the categories of CIN?
Low grade (CIN 1) High grade (CIN 2 and 3)
What is the more common type of malignant cervical tumour?
Squamous cell carcinoma (80%)
What is the less common type of malignant cervical tumour and its precursor lesion?
Adenocarcinoma
CGIN (Cervical Glandular Intra-epithelial Neoplasia)
Spread of cervical cancer (local)
Stage 2 - vagina (upper 2/3)
Stage 3 - lower vagina, pelvis
Stage 4 - bladder, rectum
Spread of cervical cancer (distant)
Lymphatic - pelvic nodes
Blood - liver, lungs, bone
Cervical cancer treatment
Radiotherapy
Chemotherapy
Caesium insertion (24 hours)
Radical hysterectomy
Radical hysterectomy
Removal of: Uterus, cervix, upper vagina Parametria Pelvic nodes Ovaries conserved
Risk factors for vulval cancer
Intraepithelial neoplasia or cancer at another lower genital tract site
Lichen sclerosus
Smoking
Immunosuppression
Vulval cancer lymph node involvement
Inguinal and upper femoral
Pelvic
VIN
Vulval intra-epithelial neoplasia
What is VIN?
Abnormal proliferation of squamous epithelium; can progress to carcinoma
What are the types of VIN?
Usual type (AKA classical/warty) Differentiated type
Usual type VIN
Associated with HPV infection
Low grade or high grade
Differentiated type VIN
In older women, not always HPV related
Always high grade
Vulval cancer treatment
Surgical
Radiotherapy
Chemotherapy
Surgical treatment of vulval cancer
Individualised surgery
Local excisiom
Unilateral or bilateral node dissection