ONCOLOGY Flashcards
Colon cancer risk factors
-age>45
long standing uc and chrohns >8 years
-primary relatives with colon cancer
-BRCA: breast and ovarian cancer
-FAP: famililal polyposis: gardeners syndrome
-HNPCC: hereditary non polyposis colon cancer aka lynch syndrome
-adenomas (5-10 yrs)
Decreased risk
ASA>20 years
-celecoxib and sulindac: decrease polyp load
-estrogens
-less red meat, limited caloric intake and increased dietary fiber
Colon cancer
-usually arises from adenomas; villous more than tubular; hyperplastic polyp haas no malignant potential
Familial Adenomatous Polyposis
-family history of adenomatous polyposis and cancer
-mutation of the APC gene–>Chromosome 5
Gardener’s syndrome
Subtype of FAP involving adenomatous polyps involving the colon
-Extraintestinal manifestations include: osteomas of mandible, skull and long bones, soft tissue tumors, epidermoid and sebaceous cysts
Peutz Jegher Syndrome
-pigmented lesions on skin, lips and mouth
-do colonoscopy
-STK11 gene
HNPCC (hereditary non polyposis colon cancer) lynch syndrome
-autosomal dominant
-need to have 3 relatives with colon cancer; two generations with colon cancer, one must be primary relative; may have extra colonic cancer as well
-at least one relative with colon cancer <50
50 year old woman with HNPCC had a colonoscopy done, whicch revealed adenomatous polyps, what to do?
Endometrial biopsy
Colorectal screening guidelines
-Flexible sigmoidoscopy with FIT
Every year FIT + every 10 year sigmoidoscopy OR
FIT DNA
Every 1-3 years OR
Colonoscopy
Every 10 years OR
CT colonography
Every 5 years OR
Flexible sigmoidoscopy
Every 5 years
A 45 year old man, asymptomatic for routine check up, FIT negative, sigmoidoscopy –>polyp
A. If biopsy of polyp is hyperplastic polyp, what to do? FIT q1 year +sigmoidoscopy 10 years OR sigmoidoscopy alone q 5 years
B. If biopsy polyp is adenoma, what to do? full colonoscopy
C. If biopsy of polyp is adenocarcinoma, what to do? full colonoscopy prior to surgery
Elderly male or post menopausal female with unexplained iron deficiency anemia, what to do?
Colonoscopy
Elderly male with hematochezia, history of hemorrhoids, what to do?
Colonoscopy
A 45 year old patient on routine health maintanece exam had FIT 1 out of 6 cards + for occult blood, what to do?
Colonoscopy
A 55 year old woman had screening colonoscopy done, 2 polyps removed; biopsy showed they were hyperplastic, when to do next colonoscopy?
10 years
Patient had 2 tubular adenomas (<1cm) removed; when to repeat colonoscopy?
5-10 years
Patient had 1 tubular adenoma 1cm in size, next colonoscopy?
3 years
Patient had 1 tubular adenoma 2.5 cm, next colonoscopy?
3 years
Patient had 3-10 tubular adenomas <1cm; next colonoscopy?
3 years
Patient had 1 villous adenoma <1 cm, next colonoscopy?
3 years
Patient had 1 serrated polyp adenoma <1 cm, next colonoscopy?
5 years
Patient had 1 serrated polyp adenoma >1 cm, next colonoscopy?
3 years
Patient with obstructive colon cancer, underwent colonic resection, what to do next?
Full colonoscopy to rule out other concomitant lesions
Following curative resection of colon cancer, when is the next colonoscopy indicated?
Colonoscopy in 1 year, then 3 years, then every 5 years; measure CEA q 3-6months for 2 years, then every ear for 5 years
Best diagnostic test to rule out colon cancer?
Colonoscopy with biopsy; best risk reduction in left colon
When do you recommend against routine colon cancer screening?
75 years
Crohns disease or ulcerative colitis
having disease for 8 years give colonoscopy then every 1-2 years
Post colonic resection for colon cancer
Colonoscopy in 1 year, then in 3 years then every 5 years
General population or distant relative with colon cancer
45 years
40 year old patient with two primary relatives with colon ca even after age 60; one primary even after age 60
Colonoscopy now and every 10 years
-FIT every year and sigmoidoscopy every 10 years OR
-sigmoidoscopy every 5 years
40 years old; or 10 years younger than youngest affected relative: 2 first primary relatives or 1 first primary relative diagnosed before age 60 with colon cancer
Colonoscopy every 5 years
25 years old or 10 years younger than the youngest affected relative with HNPCC
Colonoscopy every 2 years up to age 40 then every year
12 years old with familial adenomatous polyposis
sigmoidoscopy 1-2 years
45 year old, asymptomatic, father had colon cancer age 45
Colonoscopy now then every 5 years
40 year old asymptomatic, father had colon cancer at age 60, brother had colon cancer at age 52
Colonoscopy now and every 5 years
35 year old asymptomatic, father had colon cancer at age 65
FIT or FIT DNA or colonoscopy, or CT colonography or flexible sigmoidoscopy or flexible sigmoidoscopy with FIT starting at age 40
A 25 year old asymptomatic, family history of HNPCC
Colonoscopy now and then every 2 years up to age 40 then every year
Patient with ulcerative colitis diagnosed recently
Colonoscopy 8 years later and then every 2 years
Patient with colon cancer Duke B and underwent resection of colon
Colonoscopy in 1 year, then 3 years then every 5 years
A 45 year old asymptomatic, family hx negative for colon cancer
FIT or FIT DNA or colonoscopy or CT colonography or flex sig or flex sig with FIT starting at age 45
Young patient with family history of familial adenomatous polyposis
Colonoscopy age 16 years old
40 year old asymptomatic, father had colon cancer at age 55
Colonoscopy now and every 5 years
A 37 year old man whose father had colon cancer at age 65, presents to the office; brother had colon cancer at age 50, aunt had uterine cancer at age 48, what is more likely?
HNPCC (microsatellite mismatch repair genees MSH)
Colonoscopy negative with improper bowel prep
Repeat with proper prep
Colon cancer stage 1, node negative
RESECTION
Colon cancer stage IIa, node negative
RESECTION
Colon cancer staage IIB, IIC, node negative
RESECTION
Colon cancer stage III node positive
RESECTION + 5FU + leucovorin + oxaliplatin (FOLFOX)
Colon cancer Mets positive
Resection palliative; 5FU + Leucovorin + irinotecan + bevacizumab (FOLFIRI) + Zif-Aflibercept
Patient with colon cancer underwent hemicolectomy; histopathology revealed infiltration of muscularis, LN-, what to do?
Observe
Patient with colon cancer, infiltrating serosa and pericolic structures like viscereal peritoneum
Adjuvant chemotherapy +RT
Patient with colon cancer not infiltrating the serosa, 4/10 lymph nodes +; after hemicolectomy what else do you do?
Chemotherapy (5FU, leucovorin, oxaliplatin)
Patient with stage B2 rectal cancer, local resection was done, what else will reduce relapse?
Adjuvant chemotherapy + RT
ANAL CANCER: cancer of anal margin, how to treat?
local excision
Cancer of anal canal mucosa
External beam radiation + 5FU + mitomycin
Breast cancer screening
Begin at 50, stop at 75 OR <5-10 years prior to age in primary relative with breast cancer then every 2 years
BRCA1
Chrom 17; breast, ovarian cancer in women, prostate cancer in men; high penetrance; other family members should be made aware; offfer prophylactic salpingo oopherectomy to patients
BRCA2
chromosome 13
Ductal carcinoma in situ
lumpectomy + RT + tamoxifen/aromatase inhibitor if ER receptor + OR mastectomy (no chemo or endocrine tx)
Lobular carcinoma in situ
Observation or in ER + –>tamoxifen
Infliltrating ductal cancer with LN -
Wide excision of mass with free margins + RT; adjuvant chemo for size >1 cm; tamoxifen/aromatase inhibitor if ER receptor +
Infiltrating ductal cancer with LN +
Wide excision + RT = modified radical mastectomy + adjuvant chemo + tamoxifen/aromatase inhibitor if ER receptor +
Locally invasive disease involving skin or chest wall
chemotherapy followed by mastectomy + tamoxifen/aromatase inhibitor if ER +
Most important prognostic factor
LN> tumor size > receptor > grade
Adjuvant therapy for node + disease in premenopause
ER + chemotherapy + tamoxifen, if ER - chemotherapy, HER-2 + trastuzumab
Adjuvant therapy for node + disease in post menopausal
ER + chemotherapy +aromatase inhibitor; ER - chemotherapy; HER2 + trastuzumab
Adjuvant therapy for node - disease >.5 cms; premenopausal
ER+ Tamoxifen + HER 2 + Trastuzumab
Adjuvant therapy for node - disease >.5 cm postmenopausal
ER+ aromatase inhibitors + HER2 + Trastuzumab
ER + HER 2 - –>Oncotype dx. RT PCR 21 Aka gene recurrence assay
<25 no chemotherapy
>25 chemotherapy
Adjuvant therapy for node - disease >1 cm
Chemotherapy + endocrine therapy
Adjuvant therapy for node + disease, ER -, PR -, HER2-, aka triple negative
Atezolizumab or pembrolizumab + paclitaxel
37 year oldwoman with family hx of breast carcinoma in mother at age 65 and sister age 35, the most important risk factor for the patient to get breast cancer is?
Her family history
A 65 year old woman with a family history of breast cancer in mother at age 67; most important risk facter for her to acquire breast cancer is?
Her age
Patient with breast cancer; primary relative with hx of breast cancer and ovarian cancer; you do genetic counseling for?
BRCA1 mutation
A 40 year old woman, genetic testing showed BRCA1 mutation, what to do next?
Annual mammogram and MRI screening starting now; also for BRCA2 and their first degree relatives, TP53, PTEN, CHEK2, RT to chest
50 year old woman presents for regular checkup; the best way to screen her for breast cancer is?
Mammogram every 2 years
How to screen for breast cancer in a woman with implants?
Mammogram
50 year old woman with dense breasts, what to do?
Digital mammography
40 year old presents with thickening of left upper outer breast; no family hx of breast cancer, you advise her to come mid cycle; after 3 weeks thickening persists; mammogram and ultrasound is doone which reveals no calcifications or dominant mass, you would?
Core needle aspiration biopsy
Above patient ultrasound reveals mass with mixed echo; fine needle core biopsy shows no malignancy, what to do?
Excision biopsy
50 year old diagnosed with breast cancer; most important prognostic factor is?
lymph node positivity
A 35 year old woman with a 1.5 cm mass; excision biopsy shows infiltrating ductal cancer and margins are free of cancer; axillary LN- ER +, what to do? she does not want mastectomy
RT + adjuvant chemotherapy + tamoxifen for 10 years
A 55 year old woman with a lump in the breast; lumpectomy was done which reveals infiltrating adenocarcinoma freee margins; Axillary LN +, ER+; adjuvant chemo + RT administered and tamoxifen given for 5 years; she is now menopausal, what to do?
Switch to aromatase inhibitor for 10 years
A 45 year old with heaviness, swelling and pain in breast for 4 weeks; on exam, erythema of right lower quadrant, thickened area, nipple retracted but no nipple discharge; +lymph nodes, no fever +/- mass
Inflammatory breast cancer
Patient s/p breast cancer treatment with surgery RT and chemotherapy; presents with lymphedema of right arm; what is best management?
Progressive resistance training
Decreases risk of new breast cancer; effective for treatment of metastatic breastcancer; works only if tumor is ER and PR +; effective in preventing cancer in high risk women; has both estrogenic and anti estrogenic effects
Tamoxifen
Anti estrogenic effect
Anti breast tumor effect, hence used in treatment; menopausal symptoms (citalopram and effexor only, works for depression too)
Estrogenic effect
Increased risk of endometrial cancer x 3; increased bone density; increased thromboembolic risk/PE, NOT osteoporosis
A 45 year old patients 40 year old sister was diagnosed with breast cancer; your patient asks how to decrease risk of contracting breast cancer
Tamoxifen
A 54 year old woman diagnosed with infiltrating ductal carcinoma with LN 3/15 +; patient has breast conserving surgery. + RT + chemottherapy + tamoxifen; she is most likely to be at risk for?
Endometrial cancer
Patient with a history of breast cancer ; she received chemotherapy and started tamoxifen; 6 months ago; she presents with polyuria, constipation, fatigue, lethargy and dry mucous membranes, most likely etiology?
Hypercalcemia
Above patient has a schedule of yearly mammogram and pap smear; what else would you recommend?
Ask for gyn symptoms every visit
Above pt continued taking tamoxifen 20mg po daily, 3 years later she presents for f/u and complains of a one time bloody discharge per vagina which resolved by itself about six months ago; no other complaints than hot flashes; no breast mass noted; mammogram and pap ssmear negative, what to do next?
Endometrial biopsy
Pregnant women with Breast cancer
Treat like regular pt; surgery in 2nd and 3rd trimester; chemo in 2nd trimester
What is long term complication of aromatase inhibitors?
Osteoporosis; do DEXA scan prior to starting AIs
Young nulliparous woman diagnosed with breast cancer, what will you do next?
Refer to fertility specialist
Patient presents with nipple discharge; exam reveals eczematous scaly lesion at nipple; pregnancy test negative; prolactin normal
PAGETS disease; local wide resection if there is no mass; treat as breast cancer if there is a mass
Patient with history of breast cancer s/p lumpectomy and chemotherapy 5 years ago presents with pain in the hip and lower back; x ray of the hip reveals 3 cm lytic lesion and xray of L5 spine is normal, what to do?
MRI of L5 spine
What is first sign of epidural compression fracture?
Pain
A 60 year old woman with hx of breast cancer s/p resected ER/PR + and had chemotherapy and aromatase inhibitors started; current meds include ace inhibitors, beta blockers and lasix; she is urinating more frequently; exam is normal labs are normal except ca is 11.2; what is best management?
Bone scan; the leading solid tumor causing hypercalcemia is breast cancer
A 65 year old woman is diagnosed with infiltrating ductal carcinoma; she undergoes lumpectomy with free margins, RT and adjuvant chemotherapy; 6 months later she presents for f/u; she has no complaints; negative mammogram; what else would you recommend?
Mammogram + MRI yearly
Patient s/p mastectomy for breast cancer with mets; on increasing opiates for pain control; she is lethargic with decreased responsiveness; pupils non reactive, diplopia, tongue deviated to right, absent gag reflex, absent left ankle reflex, +urinary retention, most likely diagnosis?
Leptomeningeal spread
A 34 year old with breast lump which was excised adn found to be fibroadenoma; grandmother with breast cancer at age 55; how to f/u this patient?
Mammogram at 50
65 year old man has been taking spironolactone for ascites presents with unilateral breast mass, what to do?
Biopsy
A 30 year old woman presents with breast pain one wek prior to the onset of menstruation and resolves with onset of menstruation, what to do?
Supportive bra and reassurance
Endometrial Cancer risk factors
-obesity
-early menarche
-late menopause
-nulliparity
-tamoxifen use
-HNPCC (lynch syndrome)
-PCOS
Which cancer is associated with obesity?
Endometrial cancer (due to excess endogenous estrogen from conversion in the adipose tissue)
Pap smear: screening between 21-29
Every 3 years
For women above 30, Pap smear with HPV DNA every
5 years
Dont do HPV DNA<30
Unless pap smear is abnormal
High risk (multiple sex partners, stds, HIV)
Pap smear yearly
Stop pap smear screening at 65 if
at least 3 consecutive past pap smears are negative in past 10 years, most recent test 3 years ago OR 2 consecutive HPV tests negative in past 10 years, most recent one within 5 years OR 2 consecutive co tests negative in past ten years, most recent 5 years ag
If ASCUS and HPV +
Colposcopy
IF ASCUS and HPV -
Repeat pap in 1 year
If ASCUS - and HPV +
Repeat pap and dNA in 6months to a year
24 year old woman with vaginal discharge; pap smear shows clue cells and some ASCUS, what to do next?
Treat with metronidazole
24 year old woman, pap smear shows ascus+, what to do next?
HPV testing
When is HPV vaccine contraindicated
pregnancy