Peripheral Primitive Neuroectodermal Tumor of the Ovary: The Report of Two Rare Cases

Authors

  • Azadeh Sedighi moghadam pour APCP, Dept. of Anatomical and Surgical Pathology, Cancer Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
  • Fatemeh Nili APCP, Dept. of Anatomical and Surgical Pathology, Cancer Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
  • Hana Saffar APCP, Dept. of Anatomical and Surgical Pathology, Cancer Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
  • Hedieh Moradi Tabriz APCP, Dept. of Anatomical and Surgical Pathology and Laboratory Medicine, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
Abstract:

Peripheral primitive neuroectodermal tumor (pPNET) is a highly aggressive small round cell tumor belonging to PNET/Ewing sarcoma family. Ovarian tumors composed of primitive neuroectodermal elements are extremely rare. Herein we reported two cases of peripheral primitive neuroectodermal tumors of ovary in two patients with different clinical presentations. Definite diagnoses were made based on the histomorphology and immunohistochemistry results. With respect to different clinical behaviors, treatment modalities and prognosis of peripheral primitive neuroectodermal tumors compared to other known ovarian neoplasms, it is essential to consider this entity as a differential diagnosis in ovarian tumors especially in young patients.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Peripheral Primitive Neuroectodermal Tumor of the Pelvis

The primitive neuroectodermal tumor (PNET) belongs to a group of highly malignant tumors and is composed of small round cells of a neuroectodermal origin. Categorized in the same tumor family as Ewing sarcoma, the PNET is most likely to occur in bones and soft tissues. However, a small number of PNET cases arising in the pelvis have been reported as well. We present three cases of pelvic PNET: ...

full text

peripheral primitive neuroectodermal tumor of the pelvis

the primitive neuroectodermal tumor (pnet) belongs to a group of highly malignant tumors and is composed of small round cells of a neuroectodermal origin. categorized in the same tumor family as ewing sarcoma, the pnet is most likely to occur in bones and soft tissues. however, a small number of pnet cases arising in the pelvis have been reported as well. we present three cases of pelvic pnet: ...

full text

Primitive Neuroectodermal Tumor of the Kidney

Primitive neuroectodermal tumor (PENETs) is an uncommon malignancy of bone and soft tissue witch rarely occurs in the kidney. In more than 90% of the cases, the tumor cells relieves a balanced translocation (11; 22) (q24; q12). Immunohistochemical staining may be required for diagnosis of PENET. The cells of tumor express CD99, vimentin, NSE, FL1 but do not express Ck, LCA, myogenin, and WT1. W...

full text

Ewing sarcoma/peripheral primitive neuroectodermal tumor of the kidney: report of two cases

Ewing sarcoma/peripheral primitive neuroectodermal tumor (ES/pPNET) arising in the kidney is very rare, and only a few cases have been reported. Here we present two cases of renal ES/pPNET with different prognosis. Both patients underwent radical nephrectomy. One patient had complex EWSR1 gene chromosome translocation, high Ki-67 proliferative index and died of metastatic disease 2 months after...

full text

Rare presentation of peripheral primitive neuroectodermal tumor in the maxilla and mandible: A report of two cases

Peripheral primitive neuroectodermal tumor (pPNET) is a rare and highly malignant undifferentiated tumor, which presents in infants and young adults. pPNETs in the head and neck region are uncommon and have a varying incidence of occurrence. Peripheral PNETs of the maxilla and mandible are particularly rare. At present, only 16 cases of pPNET of the maxilla and 13 cases of pPNET of the mandible...

full text

Primitive neuroectodermal tumor of the ovary.

A 31-year-old woman presented to King Abdulaziz University Hospital complaining of an abdominal pain and a rapid increase in abdominal girth. An ultrasound and MRI, revealed a huge cystic ovarian mass without ascites. Ovarian tumor markers were all within normal range. Exploratory laparotomy showed huge right ovarian mass with omental mass. Frozen section from the omentum showed metastatic mali...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 13  issue 4

pages  467- 470

publication date 2018-09-01

By following a journal you will be notified via email when a new issue of this journal is published.

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023