Week 4: Ovary Flashcards
Review of ovarian embryological origins

Gross histology Ovarian

Gross histology Ovaries

Ovarian stroma histology

Ovarian follicle histology

Corpus luteum histology

Corpus albicans histology

Ovarian follicular cysts

Follicular cyst histology

Follicular cyst histology

Polycystic Ovarian Syndrome

Polycystic ovary hstology

Polycystic ovary hstology

Origins of ovarian tumors

Ovary histology

Ovarian epithelial neoplasms

Ovarian epithelial neoplasms

Ovarian histology cartoon

Cortical inclusion cyst (surface epithelium)

Ovarian epithelial cystic neoplasms cell types
5 listed

Ovarian epithelial cystic neoplasms biologic grades

Serous tumors of the ovary

Serous tumors of the ovary

Serous tumors of the ovary gross histology

Serous tumors of the ovary gross histology

Serous cystadenoma histology

Serous cystadenoma histology

Serous cystadenoma with psammoma body histology

Serous borderline tumor histology

Ovarian serous adenocarcinoma gross histology

Ovarian serous adenocarcinoma histology

Ovarian serous adenocarcinoma histology

Ovarian serous adenocarcinoma in lymphatic space

Ovarian serous adenocarcinoma with lymph node metastasis

Mucinous tumors of the ovary

Mucinous tumors of the ovary

Ovarian mucinous adenocarcinoma gross histology

Benign mucinous cystadenoma histology

Benign mucinous cystadenoma histology

Mucinous borderline tumor histology

Ovarian mucinous adenocarcinoma Malignant histology

Ovarian mucinous adenocarcinoma metastatic to peritoneum Malignant

Appendiceal mucinous adenocarcinoma

Endometrioid tumors of the ovary

Ovarian endometrioid adenocarcinoma

Transitional cell tumors of ovary

Ovarian Transitional cell tumor histology

Question

D. Mucinous tumor

Origins of ovarian tumors

Germ cell tumors

Germ cell lineages

Germ cell tumor lineages

Mature Teratomas AKA
Dermoids
Mature Teratomas

Gross histology of Mature Teratomas

Mature Teratomas gross hitology

Mature Teratomas histology

Mature Teratomas histology

Mature Teratomas histology

Mature Teratomas histology

Malignant teratomas

Malignant teratomas

Malignant teratomas histology

Malignant teratomas histology

Malignant teratomas histology

Dysgerminoma

Dysgerminoma gross histology

Dysgerminoma histology

Dysgerminoma

Uncommon ovarian germ cell tumors

Choriocarcinoma histology

Choriocarcinoma

Yolk Sac Tumor

Sex cords

Sex cord stromal tumors

Functional sex cord-tumors

Functional ovarian tumor side effects

Granulosa cell tumor

Granulosa cell tumor gross histology

Granulosa cell tumor histology

Granulosa cell tumor histology

Sertoli-Leydig cell tumors

Sertoli-Leydig cell tumors gross histology

Sertoli-Leydig cell tumors histology

Sertoli-Leydig cell tumors histology

Question

B and D
Granulosa cell tumor (estrogen and inhibin)
Thecoma (estrogen)
both can be functional tumors

Non functional sex cord-stromal tumors

OVarian fibroma

Ovarian fibrosarcoma

metastatic tumors to the ovary

Ovary surface embryological origin
- Coelomic epithelium -> ovary surface
Ova embryological origin
Primordial germ cells
Background stroma and sex cords embryological origin
Undifferentiated mesenchyme
Labs of Polycystic Ovarian Syndrome
Characterized by High LH and Low FSH ( LH:FSH > 2)
Symptoms of Polycystic Ovarian Syndrome
7 listed
- Anovulation, Oligomenorrhea and/or infertility
- Obesity
- Hirsutism, Acne
- Non-insulin dependent diabetes
- HTN
- Sclerocystic change
What is the most common ovarian tumor?
Ovarian epithelial neoplasms
Ovarian epithelial neoplasms age of onset
- most common in women over 50
Ovarian epithelial neoplasms features
May be bilateral
Multiple histologic types:
- Serous
- Mucinous
- Endometrioid
Has three stages of biologic behavior
- Benign
- Borderline
- Malignant
Etiology of Ovarian epithelial neoplasms
Sever theories of origin exist:
- MEtastasis from fallopian tube primary tumor
- Possibly via ovulation with ovarian surface breaks to release Ova and heals to include cysts of surface epithelium inside ovarian parenchyma
- This followed by tissue metaplasia where one tissue type changes into another
How do ruptured follicles heal
cortical inclusion cyst (includes some ovary surface stuff)

What is a Cortical Inclusion Cyst?
Healed ruptured follicle from ovulation which includes some surface cells and material

Cell types of Ovarian epithelial neoplasms
- Serous (tubal)
- Mucinous
- Endometrioid
- Clear cell
- Transitional (bladder)
Biologic grades of Ovarian Epithelial Cystic Neoplasms
- Benign cystadenoma (70%) *Single-cell layer*
- Borderline (low-malignant potential)
- Malignant invasive carcinoma
most common type of ovarian epithelial tumor
More than 50% are Serous tumors of the ovary
Risk factors for ovarian epithelial tumors
most common is Serous tumors of the ovary
- Nulliparity
- FHx: BRCA1 mutation (40% lifetime risk)
- BRCA2 (10% lifetime risk)
Protective factors against ovarian epithelial tumors
- High parity
- OCPs
Features of serous tumors of the ovary
- most common type of ovarian epithelial tumor
- Tubal/surface epithelium sometimes with psammoma bodies
- Can be nenign, borderline or malignant adenocarcinoma
- Serous adenocarcinomas may spread diffusely throughout the abdomen
- CA-125 useful serum marker to monitor treatment and recurrence
- often bilateral, typically cystic filled with watery serous fluid
Prevalence of Mucinous tumors of the ovary
25% of ovarian tumors
Features of Mucinous tumors of the ovary
- Usually unilateral
- mucinous endocervical or enteric-type epithelium
- can be benign, borderline or adenocarcinoma
- often large cystic masses filled with mucinous fluid
- Uncommonly spreads outside the ovary
- Pseudomyxoma peritonei
What is Pseudomyxoma peritonei?
- a Mucinous tumor of the ovary metatastic to the peritoneum
- mucinous ascites and tumor implants on peritoneal surfaces
- may cause intestinal obstruction and death
- Mimicked by metastasis from appendix/colon
- Check colon and perform appendectomy at time of surgery

Prevalence of Endometrioid tumors of the ovary
20% of ovarian tumors
Features of Endometrioid tumors of the ovary
- microscopic appearance of uterine endometrial carcinoma
- 15-20% arise associated of uterine endometrial carcinoma
- 15-20% arise associated with ovarian endometriosis
- Can be benign, borderline or adenocarcinoma
- Ovarian and uterine endometrial carcinoma iften occur together (15-20%)
- concurrent independent primaries or Metastases?
Features of Transitional cell tumors of the ovary
- Borderline and carcinoma forms are rare
- may be solid or cystic with mucinous component
- Rare ovarian transitional carcinomas resemble bladder carcinoma
What is the Benign form of Transitional cell tumors of the ovary?
Benign form = Brenner tumor
which is the most common form of Transitional cell tumors of the ovary
What is the most common form of Transitional cell tumors of the ovary
Brenner tumor (benign form)
Features of Brenner tumor
- The most common and benign form of Transitional cell tumors of the ovary
- Resembles bladder epithelium
Serous tumors of the ovary useful serum marker
CA-125 useful to monitor treatment and recurrence
What is the most common type of Germ Cell tumor?
Mature Teratomas
Epithelial carcinomas embryonal tissue
Coelmic epithelium
Germ cell tumors embryonal tissue
Primordial germ cells
Sex cord and stromal tumors embryonal tissue
Undifferentiated mesenchyme
Teratoma germ cell tumor lineage
Fetus
Choriocarcinoma germ cell tumor lineage
Placenta
YST germ cell tumor lineage
Extraembryonic membranes
Dysgerminoma germ cell tumor lineage
Germ cells
Seminoma germ cell tumor lineage
Germ cells
Embryonal carcinoma germ cell tumor lineage
Primitive tissue
Dermoids AKA
Mature Teratomas
Mature teratomas age of onset in women
Seen in reproductive aged women
Mature teratomas composed of?
All three fetal germ cell layers:
Mature endoderm
Mature ectoderm
Mature endoderm
Mature teratomas diagnosis
can be diagnosed radiologically by the presence of bone or teeth
What is Struma ovarii?
A form of teratoma comprised of thyroid tissue, may be functional with hyperthyroidism
Mature teratomas mechanisms of malignancy?
- malignant transformation of mature teratoma: squamous cell carcinoma, adenocarcinoma, chondrosarcoma, etc.
- Immature (and malignant) tissues rather than mature; embryonic tissues
- Very aggressive tumors often wth poor prognosis
What is the most common malignant germ cell tumor seen in reporductive aged women
Dysgerminoma
Germ cell tumor associated with Turners Syndrome
Dysgerminoma
Dysgerminoma is associated with
Turner Syndrome
Dysgerminoma histological features
solid tumor with sheets of uniform cells admixed with lymphocytes

Dysgerminoma lab markers
Serum LDH may be elevated
Choriocarcinoma is associated with?
usually pregnancy related
Choriocarcinoma lab markers
Elevated bhCG
Choriocarcinoma histological features
placental-like with malignant trophoblasts
Features of YST
- Aggressive malignant tumor
YST lab markers
AFP high
YST histological features
- Schiller-Duval bodies
- PSA+ hyaline-like globules
- glomerulus like structures
Features of embryonal carcinoma
aggressive malignant tumor with large primitive cells
What are sex cords?
embryonic tissues which produce the gonadal stroma (background support tissue)
in females give rise to granulosa and theca cells
In males give rise to Sertoli and Leydig cells
in both sexes background stroma is composed of fibroblasts
Female sex cord-stromal tumors
- Granulosa cell tumor
- Thecoma
- Sertoli-Leydig cell tumor (can also be in men)
- fibroma and fibrosarcoma
Male sex cord-stromal tumors
- Sertoli-Leydig cell tumor (also in women)
- Fibroma and fibrosarcoma
What is a functional sex cord-stromal tumors
functional refers to the ability of a tumor to produce sex hormones and the clinical effects of hyperestrinism and hypertestosteronism
Functional sex cord-stromal tumors
- Granulosa cell tumor - Estrogen and inhibin
- Thecoma - estrogen
- Sertoli-Leydig cell tumor - testosterone
Hyperestrinism from functional granulosa or thecoma tumor
elevated estrogen typically produces abnormal uterine bleeding in post-menopausal women
Hypertestosteronism from functional Sertoli-Leydig cell tumor
loss of female secondary sex characteristics, hirsutism, balding, breast atrophy, coive deepining, amenorrhea
Granulosa cell tumor age of onset
- seen at any age but more common in post-menopausal women
- Juvenile Granulosa cell tumors seen in girls with precocious puberty
Granulosa cell tumor aggression?
Rare malignant tumor
Granulosa cell tumor clincial effects of estrogen production
Abnormal uterine bleeding which may indicate concurrent endometrial hyperplasia or carcinoma
Solid tumors secrete inhibin which can be used as a biomarker for monitoring
Granulosa cell tumor histological features
- “coffee bean” nuclei with nuclear grooves
- Call-Exner bodies
- small follicles with eosinophilic secretions

Juvenile Granulosa cell tumor
seen in girls with precocious puberty
Sertoli-Leydig cell tumors age of onset
seen in young women (average age of 25 years)
Sertoli-Leydig cell tumors likelihood of being functional
about 30% are virilizing with elevated serum testosterone; remainder with no hormonal effects
Histological features of Sertoli-Leydig cell tumors
solid tumors with two cell types:
Sertoli cells
Leydig cells (Reinke crystals)

Reinke crystals are seen in?
Sertoli-Leydig cell tumors in the Leydig cells
Sertoli-Leydig cell tumors aggression
may be poorly differentiated and at an advanced stage when discovered for a poor prognosis
Most common Non-functional Sex cord-stromal tumors
- Ovarian fibroma is the most common stromal tumor
Ovarian fibroma age of onset?
typically seen in middle-age and often combined with thecomas (functional)
Histological features of Ovarian fibroma
solid very firm benign tumors composed of fibroblasts
Malignant variants may occur and are called fibrosarcomas

Ovarian fibroma aggression
benign but malignant variants may occur and are called fibrosarcomas
Ovarian fibroma associated with
- Often occur along with functional thecomas
- May be associated with pleural effusions and ascites (Meigs Syndrome)
Ovarian fibrosarcoma histology

Features of metastatic tumors of the ovary
- majority are bilateral
- often intramullerian (fallopian tube and endometrium)
- Extramullerian (GI tract, colon, appendix, stomach (Krukenberg), breast)