A benign, intermediate, or malignant mesenchymal neoplasm characterized by the presence of neoplastic fibroblasts. The disease is fibroblastic neoplasm (MONDO_0006209, a Monarch Disease Ontology term). Also known as: fibroblastic tumor, fibroblastic tumour, fibrocytic neoplasm, fibrocytic tumor, fibrocytic tumour, fibrogenic neoplasm, fibrogenicTumor, fibrous neoplasm.