Research Article

Diagnostic Differences in Expert Second-Opinion Consultation Cases at a Tertiary Sarcoma Center

Table 7

Fibrohistiocytic tumors with discrepancy in opinion.

Original diagnosisSecond-opinion diagnosis

Malignant to benign, 3 cases

Malignant spindle cell tumorGiant cell tumor of soft parts

LeiomyosarcomaFibrous histiocytoma

Vascular lesion with malignant featuresEpithelioid fibrous histiocytoma

Benign to benign, 8 cases

Clear cell soft tissue neoplasmPigmented villonodular synovitis

Benign fibrous histiocytomaXanthogranuloma

NeurothekeomaBenign fibrous histiocytoma

Nodular fasciitisFibrous histiocytoma

Infantile myofibromatosisJuvenile xanthogranuloma

Vascular lesion, favouring hemangiomaJuvenile xanthogranuloma

Mesenchymal neoplasm, likely vascularAneurysmal fibrous histiocytoma

Vascular lesionBenign fibrous histiocytoma/capillary hemangioma

Benign to intermediate, 1 case

DermatofibromaDermatofibrosarcoma protuberans

Intermediate to benign, 3 cases

Dermatofibrosarcoma protuberansDeep dermatofibroma

Dermatofibrosarcoma protuberansCellular dermatofibroma
Smooth muscle tumor of uncertain malignant potentialCellular fibrous histiocytoma