Pathology: superficial CD34-positive fibroblastic tumour

Relatively circumscribed; fascicles of spindle-epithelioid cells
Abundant "glassy" eosinophilic cytoplasm
Ovoid nuclei with moderate pleomorphism, occasional pseudonuclear inclusions and macronucleoli; inconspicuous mitotic activity
Focal bands of collagenous stroma; mild chronic inflammatory infiltrate
IHC: CD34, keratin (AE1/AE3)
RNA-seq: negative

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Soft Tissue Tumours

Fibroblastic & Myofibroblastic Tumours