Ovarian dysgerminoma
Diagnosis certain
Updates to Case Attributes
Age
changed from 10 to 10 years.
Body
was added:
Ovarian neoplasms can be divided into:
- epithelial tumors: serous, mucinous, endometrioid, clear cell, Brenner and undifferentiated
- germ cell tumors: teratoma (mature or immature), dysgerminoma, endodermal sinus tumor, embryonal cell carcinoma and choriocarcinoma
- sex cord-stromal tumors: granulosa-stromal cell tumors (granulosa cell tumor, fibrothecoma and sclerosing stromal tumor), Sertoli-stromal tumors (Sertoli-Leydig cell tumor) and steroid cell tumors
- other tumors: metastatic tumors
Epithelial tumors are the most common and represent about 60% of all ovarian tumours. Dysgerminoma (type of germ cell tumors) is found mainly in young females. It is considered as the ovarian counterpart of seminoma of the testis. It is not associated with endocrine hormone secretion unless syncytiotrophoblastic giant cells are present which secrete HCG (5% of cases). Calcification can be present. Imaging findings are characterised by the presence of multi-lobulated solid masses with prominent fibrovascular septa.
- +<p>Ovarian neoplasms can be divided into:</p><ul>
- +<li>epithelial tumors: serous, mucinous, endometrioid, clear cell, Brenner and undifferentiated</li>
- +<li>germ cell tumors: teratoma (mature or immature), dysgerminoma, endodermal sinus tumor, embryonal cell carcinoma and choriocarcinoma</li>
- +<li>sex cord-stromal tumors: granulosa-stromal cell tumors (granulosa cell tumor, fibrothecoma and sclerosing stromal tumor), Sertoli-stromal tumors (Sertoli-Leydig cell tumor) and steroid cell tumors</li>
- +<li>other tumors: metastatic tumors</li>
- +</ul><p>Epithelial tumors are the most common and represent about 60% of all ovarian tumours. Dysgerminoma (type of germ cell tumors) is found mainly in young females. It is considered as the ovarian counterpart of seminoma of the testis. It is not associated with endocrine hormone secretion unless syncytiotrophoblastic giant cells are present which secrete HCG (5% of cases). Calcification can be present. Imaging findings are characterised by the presence of multi-lobulated solid masses with prominent fibrovascular septa.</p>
References changed:
- 1. Seung Eun Jung, Jae Mun Lee, Sung Eun Rha, Jae Young Byun, Jung Im Jung, Seong Tai Hahn. CT and MR Imaging of Ovarian Tumors with Emphasis on Differential Diagnosis1. (2002) RadioGraphics. 22 (6): 1305-25. <a href="https://doi.org/10.1148/rg.226025033">doi:10.1148/rg.226025033</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/12432104">Pubmed</a> <span class="ref_v4"></span>
- Seung Eun Jung, Jae Mun Lee, Sung Eun Rha, Jae Young Byun, Jung Im Jung, Seong Tai Hahn. CT and MR Imaging of Ovarian Tumors with Emphasis on Differential Diagnosis1. (2002) RadioGraphics. 22 (6): 1305-25. <a href="https://doi.org/10.1148/rg.226025033">doi:10.1148/rg.226025033</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/12432104">Pubmed</a> <span class="ref_v4"></span>
Updates to Study Attributes
Findings
was changed:
A large pelvi-abdominal multilocular complex cystic and solid heterogeneously enhancing soft tissue mass lesion measuring about 14.8 x 7.8 x 12.5 cm along its maximum axial and craniocaudal dimensions respectively.
-
itIt is seen displacing the bowel loops upward and to the right. -
faintFaint internal linear calcifications are noted. -
moderateModerate
amount of pelvi-abdominal ascites.
An enhanced MRI pelvis was requested.
Caption
was added:
Abdomen
Updates to Study Attributes
Caption
was added:
Pelvis
Findings
was changed:
A large pelviabdominal multilocular complex soft and cystic mass lesion measuring about 14.8 x 7.8 x 12.5 cm along its maximum axial and CC dimensions respectively.
-
theThe soft tissue component is seen eliciting low to intermediate T1, heterogeneous predominantly high T2 signal with restricted diffusion in the DWI. It showsheterogeneous enhancement in the post-contrast series. -
innumerableInnumerable variable-sized cystic structures are seen eliciting low T1 and bright T2 signal. The largest of them measures about 7.3 x 5.4 cm in diameter. -
theThe
uterus is average in size and of normalmyometrialmyometrial signal. The endometrium is seen thickened measuring about 18 mm in thickness, yet it appears hyperintense. Preserved junctional zone. -
normalNormal MR appearance of the cervix and the vagina. -
preservedPreserved
follicular activity of the right ovary showing a dominant follicle measuring about 2.75 x 2 cm in - diameter.
-
inconspicuousInconspicuous left ovary. -
prominentProminent
bilateral external iliac and inguinal lymph nodes. -
moderateModerate
amount of free pelviabdominal collection.
Images Changes:
Image MRI (T2) ( update )
Perspective
was set to
Axial.
Specifics
was set to
T2.
Updates to Study Attributes
Caption
was removed:
Modality
changed from Photo to Pathology.
Findings
was removed:
Ovarian neoplasms can be divided into:
epithelial tumors: serous, mucinous, endometrioid, clear cell, brenner and undifferentiated.germ cell tumors: teratoma (mature or immature), dysgerminoma, endodermal sinus tumor, embryonal cell carcinoma and choriocarcinoma.sex cord–stromal tumors: granulosa-stromal cell tumors (granulosa cell tumor, fibrothecoma and sclerosing stromal tumor), sertoli-stromal tumors (sertoli-Leydig cell tumor) and steroid cell tumors.Other tumors: metastatic tumors
epithelial tumor is the most common one and represents about 60% of all ovarian tumours.dysgerminoma (type of germ cell tumors) is found mainly in young females. it is considered as the ovarian counterpart of seminoma of the testis.dysgerminoma is not associated with with endocrine hormone secretion unless syncytiotrophoblastic giant cells are present which secrete HCG (5% of cases).calcification can be present.imaging findings are characterized by the presence of multi-lobulated solid masses with prominent fibrovascular septa.