malignant trigeminal nerve sheath tumor and anaplastic astrocytoma collision tumor with high proliferative activity and tumor suppressor p53 expression
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ID: 239711
2014
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Abstract
Background. The synchronous development of two primary brain tumors of distinct cell of origin in close proximity or in contact with each other is extremely rare. We present the first case of collision tumor with two histological distinct tumors. Case Presentation. A 54-year-old woman presented with progressive atypical left facial pain and numbness for 8 months. MRI of the brain showed left middle cranial fossa heterogeneous mass extending into the infratemporal fossa. At surgery, a distinct but intermingled intra- and extradural tumor was demonstrated which was completely removed through left orbitozygomatic-temporal craniotomy. Histopathological examination showed that the tumor had two distinct components: malignant nerve sheath tumor of the trigeminal nerve and temporal lobe anaplastic astrocytoma. Proliferative activity and expressed tumor protein 53 (TP53) gene mutations were demonstrated in both tumors. Conclusions. We describe the first case of malignant trigeminal nerve sheath tumor (MTNST) and anaplastic astrocytoma in collision and discuss the possible hypothesis of this rare occurrence. We propose that MTNST, with TP53 mutation, have participated in the formation of anaplastic astrocytoma, or vice versa.
| Reference Key |
kurdi2014casemalignant
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|---|---|
| Authors | ;Maher Kurdi;Hosam Al-Ardati;Saleh S. Baeesa |
| Journal | nuclear medicine and biology |
| Year | 2014 |
| DOI |
10.1155/2014/153197
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