Research Article
Histopathological Diagnostic Discrepancies in Soft Tissue Tumours Referred to a Specialist Centre
Table 1
Major discrepancies.
| (a) Malignant Malignant |
| | Previous Diagnosis | Final Diagnosis | Number of cases |
| | GIST | Leiomyosarcoma | 3 | | Liposarcoma, dedifferentiated | 2 | | Liposarcoma, well differentiated | 1 | | Kaposi sarcoma | 1 | | Leiomyosarcoma | GIST | 2 | | SFT, malignant | 1 | | Alveolar RMS | 1 | | Atypical leiomyoma | Endometrial stroma sarcoma | 1 | | Rhabdomyosarcoma | Ewing sarcoma | 1 | | Liposarcoma, WD | Liposarcoma, dedifferentiated | 2 |
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| (b) Grading |
| | Previous Grade | Final Grade | Number of cases |
| | Leiomyosarcoma, grade 3 | Grade 1 | 1 | | Leiomyosarcoma, grade 2 | Grade 1 | 3 | | Leiomyosarcoma, grade 1 | Grade 2 | 5 |
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| (c) Mesenchymal Nonmesenchymal |
| | Previous Diagnosis | Final Diagnosis | Number of cases |
| | DSRCT | Carcinoma/GCT | 1 | | Granuloma ?Sarcoma | Seminoma, metastatic | 1 | | ?Sarcoma | GCT | 1 | | ?Sarcoma ?Melanoma | Anaplastic carcinoma | 1 | | ?Sarcoma | DLBCL | 1 | | Chondrosarcoma | Metaplastic carcinoma | 1 | | MPNST | Melanoma, metastatic | 1 |
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| (d) Benign Malignant |
| | Previous Diagnosis | Final Diagnosis | Number of cases |
| | Cellular neurothekeoma | GIST | 1 | | Leiomyoma | Leiomyosarcoma | 1 | | Lipoma | Liposarcoma, WD | 1 |
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| (e) Malignant Benign |
| | Previous Diagnosis | Final Diagnosis | Number of cases |
| | Low-grade fibromyxoid sarcoma | Superficial angiomyxoma | 1 | | Liposarcoma, WD | Lipoma | 1 |
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| (f) Other |
| | Previous Diagnosis | Final Diagnosis | Number of cases |
| | IMT | Fibromatosis | 1 | | Nodular fasciitis | Fibromatosis | 1 |
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