ArticleVirchows Archiv : an international journal of pathology2023
PRAME immunohistochemistry in soft tissue tumors and mimics: a study of 350 cases highlighting its imperfect specificity but potentially useful diagnostic applications.
Article in Virchows Archiv : an international journal of pathology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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13 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.
- Pooled it
- The evolution of cellular therapies in sarcoma: Breakthroughs, challenges, and future directions.Human vaccines & immunotherapeutics · 2026Review
- Pitfalls in Bone and Soft Tissue Pathology of the Head and Neck: Primary Intraosseous Rhabdomyosarcoma/FUS::TFCP2-Rearranged Spindle Cell Rhabdomyosarcoma and Transdifferentiated/Dedifferentiated/Undifferentiated Melanoma.Head and neck pathology · 2026Review
- [Cutaneous clear cell sarcoma].Pathologie (Heidelberg, Germany) · 2026Review
- Systemic Therapy for Solitary Fibrous Tumor.Current treatment options in oncology · 2026Review
- CRTC1::TRIM11 Cutaneous Tumors With Atypia: Melanoma Mimicry, Aggressive Potential, and Methylation Classifier Limitations.Genes, chromosomes & cancer · 2026Article
- A comprehensive review of ossifying fibromyxoid tumor: insights into its clinical, pathological, and molecular landscape.Journal of pathology and translational medicine · 2026Article
- Molecular and epigenetic oncogenesis in synovial sarcoma: implications for cancer biology, diagnosis and treatment.Oncogene · 2025Review
- Primary Cutaneous Neoplasm With Rhabdomyosarcomatous Differentiation and a Melanoma-Like Mutational Landscape.Journal of cutaneous pathology · 2025Article
- PRAME expression in fibrosarcomatous dermatofibrosarcoma protuberans.Scientific reports · 2024Article
- PRAME Updated: Diagnostic, Prognostic, and Therapeutic Role in Skin Cancer.International journal of molecular sciences · 2024Review
- Expression of Preferentially Expressed Antigen in Melanoma, a Cancer/Testis Antigen, in Carcinoma In Situ of the Urinary Tract.Diagnostics (Basel, Switzerland) · 2023Article
- Cutaneous Melanoma: A Review of Multifactorial Pathogenesis, Immunohistochemistry, and Emerging Biomarkers for Early Detection and Management.International journal of molecular sciences · 2023Review
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Authors and funding
9 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Preferentially expressed antigen in melanoma (PRAME) immunohistochemistry is currently used in pathology for the assessment of melanocytic neoplasms; however, knowledge of its expression patterns in soft tissue tumors is limited. PRAME immunohistochemistry (clone QR005) was assessed on whole tissue sections of 350 soft-tissue tumors and mimics (> 50 histotypes). PRAME immunoreactivity was evaluated as follows: 0 "negative" (0% positive cells); 1+ (1-25% positive cells); 2+ (26-50% positive cells); 3+ (51-75% positive cells), and 4+ "diffuse" (> 75% positive cells). PRAME was expressed in 111 lesions (0 benign, 6 intermediate malignancy, and 105 malignant), including fibrosarcomatous dermatofibrosarcoma protuberans (2/4, 0 diffuse), NTRK-rearranged spindle cell neoplasm (2/4, 0 diffuse), atypical fibroxanthoma (1/7, 0 diffuse), Kaposi sarcoma (1/5, 0 diffuse), myxoid liposarcoma (11/11, 9 diffuse), synovial sarcoma (11/11, 6 diffuse), intimal sarcoma (7/7, 5 diffuse), biphenotypic sinonasal sarcoma (3/3, 1 diffuse), angiosarcoma (10/15, 6 diffuse), malignant peripheral nerve sheath tumor (9/12, 4 diffuse), pleomorphic rhabdomyosarcoma (2/3, 2 diffuse), alveolar rhabdomyosarcoma (2/6, 0 diffuse), embryonal rhabdomyosarcoma (7/7, 4 diffuse), undifferentiated pleomorphic sarcoma (2/12, 1 diffuse), leiomyosarcoma (2/15, 1 diffuse), clear cell sarcoma of soft tissue (1/10, 0 diffuse), low-grade fibromyxoid sarcoma (1/5, 0 diffuse), Ewing sarcoma (2/10, 1 diffuse), CIC-rearranged sarcoma (8/8, 4 diffuse), BCOR-sarcoma (2/5, 1 diffuse), melanoma (20/20, 14 diffuse), and thoracic SMARCA4-deficient undifferentiated tumor (5/5, all diffuse). All tested cases of spindle cell lipoma, dedifferentiated/pleomorphic liposarcoma, dermatofibrosarcoma protuberans, solitary fibrous tumor, inflammatory myofibroblastic tumor, myxoinflammatory fibroblastic sarcoma, nodular fasciitis, myxofibrosarcoma, epithelioid hemangioendothelioma, atypical vascular lesion, hemangioma, lymphangioma, vascular malformation, papillary endothelial hyperplasia, GIST, gastrointestinal clear-cell sarcoma, malignant melanotic nerve sheath tumor, neurofibroma, schwannoma, granular cell tumor, alveolar soft part sarcoma, epithelioid sarcoma, extraskeletal myxoid chondrosarcoma, myoepithelioma, ossifying fibromyxoid tumor, angiomatoid fibrous histiocytoma, PEComa, dermatofibroma, pleomorphic dermal sarcoma, and chordoma were negative. PRAME shows imperfect specificity in soft-tissue pathology but may serve as a diagnostic adjunct in selected differential diagnoses that show contrasting expression patterns.
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