-
What is this?
Ovarian cystadenocarcinoma that has metastasized to the omentums
-
What is this?
Ovarian cystadenocarcinoma metastatic to bowel wall
-
What is this?
ovarian mucinous adenocarcinoma
-
What is this? Is it benign or malignant? 
Ovarian mucinous cystadenoma: benign
-
What is this? Is it malignant or benign? 
Ovarian mucinous cystadenoma: benign
-
What is this? Is it benign or malignant?
Ovarian mucinous cystadenoma: benign
-
What is on the left? The right? Which one is malignant? Benign?
- Left: Ovarian mucinous cystadenocarcinoma: malignant
- Right: Ovarian mucinous cystadenoma: benign
-
What is this?
ovarian mucinous cystadenocarcinoma
-
What is this?
Ovarian mucinous cystadenocarcinoma: metastatic to peritoneum
-
What is this?
Appendiceal mucinous adenocarcinoma
-
What is this? What cell type lines the cyst?
Mucinous cystadenocarcinoma: a multiloculate tumor (in this case) with cysts of varying sizesCyst lining cells: tall columnar epithelium with apical mucin
-
What is this? What are the cells attached to and why is it significant? How can these implant elsewhere or spread?
- Papillary serous cystadenocarcinoma: note the frond-like excrescences formed by the tumor
- The fronds of malignant tumor cells are attached to: delicate fibrovascular cores, and it is relevant because these cells secreted the watery fluid that filled the tumor
- Tumors like these can invade through the wall of the ovary and implant throughout the peritoneal cavity
- May spread via hematogenous or lymphatic routes
-
What is this? From what cell type is it derived? Are they mature or immature? What is the most common element? What special feature is seen in these?
 
- Mature cystic teratoma
- Derived from: pluripotential germ cells
- Mature: and menign; they have tissue elements from ectodermal, mesodermal, and endodermal origin
- Most common element present: Skin, complete with hair follicles and sebaceous glands
- Special feature: Rokitansky nodule, often contains a tooth
-
What is this? What do you see here (be specific)? 
Mature teratoma with glandular epithelium (endoderm)
-
What is this? What do you see here (be specific)? 
Mature cystic teratoma with squamous epithelial tissue (ectoderm)
-
What is this? What do you see here (be specific)? 
Mature cystic teratoma with glandular epithelium (endoderm)
-
What is this? What do you see here (be specific)? 
Mature cystic teratoma with cartilage (mesoderm)
-
What is this?
Immature teratoma with immature neural elements
-
What is this?
Malignant teratoma with invasive squamous cell carcinoma
-
What is this? What is the male counterpart called? Is it radiosensitive? In what age bracket are these usually found? What are histological characteristics of this tumor?
- Dysgerminoma of the ovary (a germ cell tumor)
- Male counterpart: Testicular seminoma (the two have identical histologies)
- Age bracket: 2nd-3rd decades of life
- Histo char: malignant cells with "fried egg" appearance (clear cytoplasm with enlarged nuclei and prominent nucleoli) and infiltration by mature lymphocytes (T cells)
-
What is this?
Ovarian dysgerminoma
-
Ovarian dysgerminomas (females) or seminomas (male)
|
|
