Breast Flashcards

1
Q

48 yo with Large painless breast lump, no lymphadenopathy, rapidly growing, leaf-like appearance tumor under microscope

A

Phyllodes tumor- benign tumor that looks like fibroadenoma in imaging

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2
Q

Mastalgia, cyclic pain with menses, clear/white discharge

A

Fibrocystic Breast disease

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3
Q

A rapid introduction proliferation of cells that leads to necrosis and cellular debris within the ducts. On microscope: solid growth of large, paleo Orphic, high-grade cell’s with central expansile necrosis, mitotic figures, periductal inflammation and fibrosis and coarse microcalcifications

A

Comedocarcinoma- a type of ductal carcinoma in situ with rapid introduction proliferation of cells

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4
Q

Painless breast mass, skin changes (retraction, dimpling, edema), nipple retraction, bloody discharge, microcalcifications and stromal invasion on biopsy

A

Invasive ductal carcinoma

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5
Q

<35yo F, presents as a solitary, nontenders, mobile mass, “popcorn” calcification on mammography, biopsy show benign hyperplastic stroma encapsulating ductal tissue

A

Fibroadenoma

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6
Q

Sometimes palpable, single or multiple lesions with serous or bloody nipple discharge, biopsy. Show a central, branching, fibrovascular core with surrounding myoepithelial and epithelial cells

A

Intraductal papilloma

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7
Q

Painless breast nodule with microcalcification and speculations on mammogram and malignant cels in lobules and monomorphic cells in single rows referred to as “Indian file” pattern on biopsy

A

Invasive lobular carcinoma

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8
Q

Drug with Increased risk of endometrial hyperplasia? Why?

A

Tamoxifen; unopposed estrogen on uterus (estrogen agonist)

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9
Q

Drug with decreases the risk of endometrial hyperplasia? Why? What is its SE?

A

Raloxifene; estrogen antagonist in breast and the uterus ; but risk of thromboembolic events

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10
Q

Medication for Mastitis?

A

Dicloxacillin or cephalexin (strong activity against Stap aureus)
Continue to Breastfeed to avoid abcess development
If MRSA- use TMP-SMX (Bactrum) but risk of kernicterus in newborn

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11
Q

Galctorrhea, headaches, MRI mass in the sella turcica suggests ? What will be the hormonal levels for Dopamine? LH? & FSH?

A

Pituitary lactotroph adenoma; dopamine is high because prolactin stimulates it, LH & FSH will be low due to negative feed back by inhibition of GnRH secretion

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12
Q

28YO F, with multiple right inframammary lumps, foul-smelling odor, painful welling sin her axillae, erythematous nodules and fistula discharging pus is? Risk factors?

A

Hidradenitis Suppurativa (HS) or acne inversa- risk: smoking, obesity, hyperandrogenism, impaired glucose tolerance, IBD

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13
Q

6YO F, AA, with 95% height, 99% weight and BMI, coarse hair under both axilla and sparse dark hair on the mons pubis and along the labia majora, no palpable glandular breast tissue? Cause? Risk?

A

Isolated premature adrenarche or peripheral precocious puberty (PPP). Due to High levels of insulin: Risk: obese pt, AA

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14
Q

42yof with Irregular menstrual periods, nipole discharge, on atypical antipsychotics. Cause of symptoms?

A

Medication Risperidone, D2 antagonist, no inhibition of prolactin, then prolactin inhibiting GnRH

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15
Q

34F, increased breast tenderness, N, wt gain, urinary frequency for 2 month. Trying to get pregnant for 6 month, B-hCG is neg. Vaginal ultrasonography no abnormalities.

A

pseudocyesis

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16
Q

First line treatment for prolactinomas & macroadenomas?

A

Dopamin receptor agonist (Cabergoline or bromocriptine); transsphenoidal hypophysectomy for macro-adenomas

17
Q

Drug used for HER2 cancer ? Also used for ?

A

Transtuzumab(Blocks HER2 receptor) also used in Gastric cancer

18
Q

Drug used for MS, CLL

A

Alemtuzumab

19
Q

Drug used for Colorectal cancer, Renal cell carcinoma, Non-small cell lung cancer, and neovascular age-related muscular degeneration

A

Bevacizumab

20
Q

Drug used to treat Rheumatoid arthritis, ITP, CLL, B-cell non-hodgkin lymphoma and symptomatic waldernstrom macroglobulinemia

A

Rituximab

21
Q

Loss of heterozygosity in tumor suppressor gene p53, cause multiple cancers

A

Li-Fraumeni syndrome

22
Q

45Yo, F, with itchy rash on L nipple, jello watery discharge, blood-tinged, weeping, ulcerated lesion involving the entire left nipple-areolar complex

A

Paget’s disease of the breast- ductal carcinoma that infiltrates the nipple-areola complex

23
Q

29YO, F with blood-tinged discharge from L nipple, NSIM?

A

Subareolar ultrasound

24
Q

Atypical antipsychotic drug with no hyperprolactinemia SE?

A

Aripiprazole

25
Q

Why does Hypothyroidism cause hyperprolactinemia?

A

Low T3,T4 -> high TSH
Low T3,T4->stimulates hypothalamus to release TRH which in turn increases TSH and also excessive TRH stimulates the lactotroph cells of the anterior pituitary to release prolactin

26
Q

Turner syndrome child is at risk for osteoporosis because?

A

Ovarian dysgenesis-> estrogen deficient, increased osteoclast activity, decreased osteoblast activity and bone reabsorption

27
Q

A sex cord-stomal tumor with elevated estrogen & progesterone is

A

A granulose cell tumor ( Cell-Exner bodies on histology)

28
Q

CA 125 is increased in what kind of ovarian tumors?

A

Epithelial eg: serous cystuadenocarcinoma (Shows psammoma bodies)

29
Q

What can be used as a tumor marker for ovarian tumors like dysgerminomas (Fried-egg appearance)

A

Lactate dehydrogenase (LDH): B-hCG levels are increased )

30
Q

Standard screening test for breast cancer Women 50-74 yo by USPTF

A

Every 2 years (average risk for breast cancer)

31
Q

Development of secondary sexual characteristics in 7yo girl indicates

A

Precocious puberty

32
Q

Lack of elevation of LH levels following GnRH agonist stimulation indicates

A

peripheral precocious puberty caused by estrogen-secreting ovarian tumors like granulosa cell tumors

33
Q

Precocious puberty with prostatic fibrous dysplasia and abnormal skin pigmentation (cafe-au-lait spots)

A

McCune-Albright syndrome

34
Q

Increased TSH indicates

A

hypothyroidism

35
Q

Galactorrhea and irregular menstrual cycles suggest

A

hyperprolactinemia

36
Q

Excess TRH (from Low T3, T4) causes increase TSH and stimulates what other cells

A

lactotroph cells to release prolactin

37
Q

Gynecomastia causing medications

A
  • Ketoconazole
  • Spironolactone
  • Digoxin
  • Flutamide
  • Leuprolide
  • H2 antagonists (cimetidine)