Patients in Whom the PET Scan and Routine BM Biopsy Result Differed
| Diagnosis . | Comment . |
|---|---|
| PET+, biopsy− | |
| Focal FDG uptake | |
| 1. HD (ns) | Normal FDG uptake at biopsy site |
| 2. HD (mc) | Normal FDG uptake at biopsy site |
| 3. Diffuse large B-cell lymphoma | Normal FDG uptake at biopsy site |
| 4. Diffuse large B-cell lymphoma | Normal FDG uptake at biopsy site |
| Diffuse FDG uptake | |
| 5. HD (ns) | |
| 6. HD (mc) | |
| 7. Peripheral T-cell (high grade) lymphoma | |
| 8. Anaplastic large cell (Ki-1+) lymphoma | |
| PET−, biopsy+ | |
| 1. Centroblastic centrocytic lymphoma | No FDG uptake by lymph nodes |
| 2. Mantle cell lymphoma | No FDG uptake by lymph nodes |
| 3. Mantle cell lymphoma (leukemic variant) |
| Diagnosis . | Comment . |
|---|---|
| PET+, biopsy− | |
| Focal FDG uptake | |
| 1. HD (ns) | Normal FDG uptake at biopsy site |
| 2. HD (mc) | Normal FDG uptake at biopsy site |
| 3. Diffuse large B-cell lymphoma | Normal FDG uptake at biopsy site |
| 4. Diffuse large B-cell lymphoma | Normal FDG uptake at biopsy site |
| Diffuse FDG uptake | |
| 5. HD (ns) | |
| 6. HD (mc) | |
| 7. Peripheral T-cell (high grade) lymphoma | |
| 8. Anaplastic large cell (Ki-1+) lymphoma | |
| PET−, biopsy+ | |
| 1. Centroblastic centrocytic lymphoma | No FDG uptake by lymph nodes |
| 2. Mantle cell lymphoma | No FDG uptake by lymph nodes |
| 3. Mantle cell lymphoma (leukemic variant) |
Abbreviations: PET−/+, normal/increased FDG uptake within the BM; biopsy−/+, absent/present lymphoma infiltration on marrow biopsy; ns, nodular sclerosis; mc,mixed cellularity HD.