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[Pilocytic astrocytomas with aggressive clinical course: a single-center experience]

Yu M Poluektov1, D Yu Usachev1, N A Konovalov1

  • 1Burdenko Neurosurgical Center, Moscow, Russia.

Zhurnal Voprosy Neirokhirurgii Imeni N. N. Burdenko
|January 13, 2026
PubMed
Summary

Aggressive pilocytic astrocytomas (PA) show a poorer prognosis, with a 45% 5-year survival rate compared to conventional PAs. Histological signs like anaplasia and high Ki-67 index can indicate aggressive tumors.

Keywords:
Ki-67malignant astrocytoma with piloid propertiesmorphological analysisneurooncologypilocytic astrocytomaspiloid astrocytomas with aggressive course

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Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...