Table 1.
Clinical and pathologic features of malignant PETomas
| Pt. no. | Age, yr/sex | Primary cancer | SUV | FNAC result | Pathology | Size, cm | Extrathyroid extention | Vascular invasion | Multifocal | Lymph node status |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 41/M | Melanoma | 10.1 | PTC | PTC | 1.0 | + | — | + | NA |
| 2 | 53/F | Gastric cancer | 4.7 | Follicular neoplasm | PTC | 1.0 | + | + | + | NA |
| 3 | 52/F | Sarcoma | 4.2 | Benign | microPTC | 0.3 | — | — | — | NA |
| 4 | 33/F | Sarcoma | 5.3 | PTC | PTC | 1.7 | — | — | + | 0/2 |
| 5 | 57/F | Renal cell carcinoma | 5.8 | Follicular neoplasm | PTC | 2.3 | — | — | + | 0/5 |
| 6 | 73/M | Lung cancer | 3.0 | Follicular neoplasm | microPTC | 0.3 | — | — | — | 0/1 |
| 7 | 74/F | Lung cancer | 6.0 | Follicular neoplasm | PTC* | 2.5 | — | — | — | NA |
| 8 | 59/M | Melanoma | 25.6 | PTC | PTC | NA | — | — | — | NA |
| 9 | 69/M | Metastatic colorectal cancer | 8.5 | NA | PTC | NA | — | — | — | NA |
F = female; FNAC = fine-needle aspiration cytology; M = male; NA = not available; PTC = papillary thyroid carcinoma; SUV = standardized uptake value.
*
Poorly differentiated.