FRCPath Haem Part 1 MCQ- Oncology 62
- amirhayat2527
- Sep 7, 2025
- 0 min read
A 52yr-old man present with bone pain, D insipidus and eye swelling. Biopsy shows foamy histiocytes with CD68+163-1a-. CT with hairy kidney features. Mutation?
KIT D816V mutation
GBA1 Mutation
BRAF V600E mutation
SMPD1 Mutation


Correct answer: BRAF V600E. This is Erdheim chester disease