Which is the most common tumor associated with type I neurofibromatosis?: (A) Optic nerve glioma, (B) Meningioma, (C) Acoustic schwannoma, (D) Low grade astrocytoma
Answer is A. Ans. (a) Optic nerve glioma(Ref: Robbins 9th/pg 298)NF1 patients have increased risk of Meningioma Q, Pheochromocytoma Q & Wilm's Tumor QMost common tumor in NF1 is optic nerve glioma QMost common Leukemia in NF1 is JMML Q (Juvenile Myelomonocytic Leukemia)