onco - breast, nasopharynx, lung, neck, cervix Flashcards
Peak age of incidence in breast Ca
70 y/o
Most common cause of morbidity in women
Breast Ca
Risk factors in breast Ca
- Family history
- Age of menarche, 1st pregnancy, menopause
- Nulliparity
- Low socio-economic status
- Hormones (estrogen)
- Endometrial Ca
Environmental toxins in breast Ca
Organochlorine
Pesticides
Smoking
T/f: breast feeding decreases risk for breast Ca
True
First step for management of a palpable mass
Ultrasound
Movable, small (2mm nodule), hard and not painful mass in breast
Stimulated by pregnancy and regression occurs post menopause
Fibroadenoma
Most common benign tumor of female breast
Fibroadenoma
Small, scattered, cyclic painful mass in the breast
Multiple, irreg lumps common in premenopausal than postmeno.
Fibrocystic changes
Management for fibrocystic change
Aspiration, if bloody then it is Ca
Biopsy indication in breast Ca
Marked unilateral breast enlargement
Enlarged hard mass which can’t be aspirated
Nipple discharge
Skin dimpling and redness (peau de orange)
Breast pain
Diagnostic procedures for breast Ca
Self examination Pe Mammography (low dose rad) - reveals breast architecture UTZ Needle aspiration Excisional biopsy
Most ominous sign found in mammography
Clustered, irregular microcalcification
Pre-op evaluation (indication for surgery)
- Extensive edema of the breast
- Signs of inflammation
- Satellite nodules of Ca
- Supraclavicular mets, and neighboring distal mets
- Spread to internal mammary ln
T/f: pregnancy is a contraindications for surgery for breast Ca
False.
Survival rate for non-met breast Ca
95%
Survival rate for intraductal papillary Ca
50% 5 yr SR
Breast mass with bloody discharge
Paget’s disease
Biggest breast ca
Phyllodes tumor of breast
Types of breast Ca that rarely mets
- Colloid Ca - mucin producing
- Medullary Ca - lymphocytic infiltration with sheath like pattern
- Well-diff adenoma
- Tubular Ca- good prognosis
- Comedo Ca - ducts and lobules dilated by sheets of pleomorphic cells with zones of central necrosis
Mod/highly met Ca:
Highly invasive, spread early to regional lymph node
Mod met Ca
SR of mod met Ca
50-65%
SR of highly met Ca
15%
Mod met Ca
Infiltrating adenocarcinoma of Ductal origin (most common)
Intraductal Ca with stromal invasion
Mod/highly met Ca:
Vascular invasion, signs of inflam
< 3% 5 yr SR
Poor prognosis
Highly mets Ca
Clinical charac that worsen prognosis in breast Ca
- Edema
- Tumor fixation to chest wall and overlying skin
- Peau de orange
- Skin retraction/dimpling (due to shortening of tumor cells involving cooper’s ligament)
- Involvement of medial portion of lower inner quadrant of breast
- Evidence Distant mets
T/f: estrogen receptor positive tumor responds to hormonal therapy and has good prognosis
True
Treatment for breast Ca
Surgery
Radiation
Hormonal therapy
Surgical procedures of breast Ca:
Axillary lymphadenectomy followed by post-op radiation
Lumpectomy/segmental mastectomy
Surgical procedures of breast Ca:
For small primary lesions
Long thoracic nerve should be preserved to prevent denervation of serratus anterior (winged scapula)
Lumpectomy/segmental mastectomy
Surgical procedures of breast Ca:
Removal of breast with nipple-areola complex, sometimes combined with level1 axillary lymph node
Pectoralis major is preserved
Simple mastectomy
Surgical procedures of breast Ca:
Removal of generous amt or entire breast, Pectoralis muscle and lymph node inferior to axillary vein
SM + axillary dissection
Modified radical mastectomy
Surgical procedures of breast Ca:
Removes Pectoralis major in addition to tissue in modified radical mastectomy
En bloc removal of breast, Pectoralis major and minor and axillary contents
Halsted radical mastectomy
Country where nasopharyngeal Ca is most commonly seen
China
Virus asso with NPC
EBV
NPC is common in what population
Young population
Most common symptom in NPC in young population
Epistaxis
Otitis media
Most common symptom of NPC in Middle Ages
Basal obstruction
Other symptoms of NPC
Ptosis, Diplopia, hoarseness (late sign)
Diagnostic procedure for NPC
Bronchoscopy
CT scan - cn, bone,lymph node involvement, compliments MRI
MRI - soft tissue
Most common types in NPC
Epithelioma (85%)
Lymphoma (75%) - malignant
Treatment for NPC
- Initial treatment for all forms - radiation
- Chemotherapy and radiation - for distant mets
- Neck dissection
Prognosis for NPC
Poor prognosis with <20% 5 yr SR
Most common etiologic factor for Bronchogenic Ca
Smoking
Other etiologic factors for lung Ca
Asbestos, chromates, nickel, arsenic, uranium, flower sprays
Peak age incidence of lung Ca
40 years old
Lung Ca is most common in what sex
Male
Most common Bronchogenic Ca
Adenocarcinoma
Most common in women, non smokers and smokers who quit
Adenocarcinoma
Site of adenocarcinoma
Periphery
Variant of adenocarcinoma with tall columnar cells lining the bronchioles (should be cuboidal)
Bronchioalveolar Ca
Has butterfly wings or lepidic appearance
Bronchioalveolar Ca
Types of Bronchioalveolar Ca
Solitary and multinodular
Lung Ca that looks like pneumonia
Bronchioalveolar Ca
Ling Ca that produces obstruction and can undergo central necrosis which may lead to calcification. Slow growing.
SCC
Asso to PTH excessive secretion
SCC
Site of SCC
Centrally
Site of SCLC
Centrally
Histologically, with keratin pearls and intercellular bridges (desmosomes)
SCC