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2016年9月15日 星期四

[醫如往常] Senior Clerkship Day 6: Ob/Gyn Ovarian cyst; Cases ;COS

童教授
一般卵巢瘤開刀的適應症 :
1.卵巢囊腫大於6公分,且觀察2個月,沒有縮小或消失。
2.任何10公分以上的卵巢腫塊。
3.卵巢囊壁上有乳突狀贅生物。
4.有實心部分的卵巢瘤。
5.有腹水。
6.初經之前或停經之後,出現的卵巢腫瘤。
7.懷疑卵巢腫瘤有扭轉或破裂的狀況。

何時會痛:ovarian torsion
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Dermoid cyst suction要加水
不然黏黏的
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EM thickening
Endometrial cancer
Adenosarcoma
Amplification of MDM2 GENE
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Endometrioma (chocolate cysts or endometriotic cysts)
Plain radiograph
Not usually helpful in diagnosis; ~10% of endometriomas can calcify.

Ultrasound
unilocular cyst with acoustic enhancement with diffuse homogeneous ground-glass echoes as a result of the haemorrhagic debris. This appearance occurs in 50% of cases .
Homogenous Low level internal echoes
Thick walled

Less typical features include 7:
  • multiple locules (~85% will have <5 locules)
  • hyperechoic wall foci (present in 35%)
  • cystic-solid lesion (~15%) or purely solid lesion (1%)
  • anechoic cysts (rare; 2%)

Differential diagnosis
General imaging differential considerations include:

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Imaging Ovarian  Ovarian Endometriomas Endometriomas
Tina Marie George Tina Marie George
Harvard Medical School Year III Harvard Medical School Year III
Gillian Lieberman, MD Gillian Lieberman, MD

Corpus luteum cystw/ Central Blood Clot
Differentiating Features
•Complexity
•Heterogeneity
•Irregular Borders
•Unusual shape


Follicular cyst
Differentiating Features
•Thin walls
•Anechoic echogenicity
•Multiple, separate lesions


Dermoid cyst
Differentiating Features:
•Mixed hypoechoic and hyperechoic
areas
•Irregular Borders
•Unusual Shape
Hoffman, UpToDate

„ Distal shadowing
–– Calcific foci in endometriomas tend to show distal shadowing
–– Echogenic foci in dermoids can be composed of calcium or fat.  Calcific foci will demonstrate distal shadowing, but foci of fat will not.

Hemorrhagic cyst
This lesion shows low-level
internal echoes, clean margins,
and rounded shape that could be
confused with endometrioma.

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Afternoon Meeting: Cases
Port A implantation
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Termination after Aminocentesis
May be due to infection
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Ovarian cancer, para-caval lymph node recurrence
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Poor appetite
Abdominal mass
Clear cell carcinoma
GS LAR
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IVF, AML, PCOS,
TAE
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Antiphospholipid with thrombocytopenia
  • D-dimer monitor
50k
PPROM
Bilateral ovarian tumor
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Gestational thrombocytopenia
5%
Mild ITP

Immune thrombocytopenia purpura
Neonatal thrombocytopenia
10% <50000
5% <20000

Stetoid 3-5 days 才會有效
IVIG 6 Hr response
IV anti D
Contraindication, rituximab, cyclophosphamide…
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Aromatic L amino acid decarboxylase deficiency, AADC
AR, DDC gene 7p12.2

20% in Taiwan
Prevalence 1/60000

Dopamine, serotonin

Hypotonia
Athetosis
Lethargy
Droopy eyelids, HTN, GERD
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ADPKD, AD
Incidence 1/25000-40000
Onset in middle age
50% ESRD in the 50s
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Controlled ovarian stimulation COS/COH 李教授

GnRH agonist, (normal: half hour pulsatile) 只有台大噴鼻的
Ultra long 壓制力太強,need high level gonadotropin
Long synchronization
Short for age >40
Ultra short

Gonadotropin
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Ovulation
LH surge 10-12hr
Onset 34-36hr
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GnRH agonist Block premature LH surge
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Ovarian reserve
Birth 2,000,000
Age 14, 300,000

Ultrasound
Early follicular phase
AFC; Antral follicle counts
Bad <6
2-9

Volume>10cc, PCOS
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AMH; Anti-Müllerian hormone
Day 2-5, 3
Inhibit recruitment
Decrease the sensitivity of FSH
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Poor responder <4, AMH<1.1, AFC<6
Normal
Hyper  AMH>3.5,
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74 days primordial follicle to ovulation

Day 3 recruitment
Day 14? FSH selection

取卵費用 12-15
Ultrasound 2>18mm
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Good ovarian reserve Short protocol效果差不多
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GnRH antagonist competitive inhibition
至少agonist少兩天
效果比較短
減少FSH用量減少OHSS
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東方人用single 3 mg抑制太強
所以現在都用multiple 0.25mg
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Oocyte maturation, meiosis I, diplotene stage
hCG 破卵針,半衰期較長
Heterodimer, same alpha chain: TSH, LH, FSH, HCG
(alpha chain glycosylation 仍有差異)
Beta-hCG驗孕
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Recombinant FSH
HMG(高倍FSH+LH)第三世界老人蒐集尿液
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Two cell, two gonadotrophin theory
LH-> Thecal cell, androgen
FSH-> granulosal cell, estradiol
Lutenized granulosal cell才有LH receptor, cholesterol transport
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Luteal support,補hCG (LH)
不補的話懷孕率很差
FSH 造成E2高,負回饋抑制pituitary
一顆貢獻200pg/ml E2
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Cases
Common exam 找不到
FSH<10, AGE<40
都可以用

Day 2 看生理期,E2會不會太高ovarian cyst

教授有全台最多OHSS論文
High Risk
E>3600, 卵子>20要減藥

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Titration
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