Circumscribed; variable cellularity; spindle cells with patternless arrangement
Scant pale eosinophilic cytoplasm
Monomorphic ovoid nuclei with small nucleoli; inconspicuous mitotic activity
Myxoid-collagenous stroma; complex ramifying capillary-sized vasculature
RNA-seq: AHRR::NCOA2 gene fusion
Circumscribed; variable cellularity; spindle cells with patternless arrangement
Scant pale eosinophilic cytoplasm
Monomorphic ovoid nuclei with small nucleoli; inconspicuous mitotic activity
Myxoid-collagenous stroma; complex ramifying capillary-sized vasculature
RNA-seq: AHRR::NCOA2 gene fusion
- Circumscribed; variable cellularity; spindle cells with patternless arrangement
- Scant pale eosinophilic cytoplasm
- Monomorphic ovoid nuclei with small nucleoli; inconspicuous mitotic activity
- Myxoid-collagenous stroma; complex ramifying capillary-sized vasculature
RNA-seq: AHRR::NCOA2 gene fusion
Circumscribed; variable cellularity; spindle cells with patternless arrangement
Scant pale eosinophilic cytoplasm
Monomorphic ovoid nuclei with small nucleoli; inconspicuous mitotic activity
Myxoid-collagenous stroma; entrapped adipocytes; complex ramifying capillary-sized vasculature
RNA-seq: AHRR::NCOA3 gene fusion
PMID: 36860189
Circumscribed; variable cellularity; spindle cells with patternless arrangement
Scant pale eosinophilic cytoplasm
Monomorphic ovoid nuclei with small nucleoli; inconspicuous mitotic activity
Myxoid-collagenous stroma; complex ramifying capillary-sized vasculature
RNA-seq: AHRR::NCOA2 gene fusion
PMID: 22301504, 22337624
Circumscribed; variable cellularity; spindle cells with patternless arrangement
Scant pale eosinophilic cytoplasm
Monomorphic ovoid nuclei with small nucleoli; inconspicuous mitotic activity
Myxoid-collagenous stroma; complex ramifying capillary-sized vasculature
RNA-seq: AHRR::NCOA2 gene fusion
PMID: 22301504, 22337624