DZI20-198: IAC BST
From MGH Learn Pathology
Request details
- Request type Study
- Subspecialty Bone and Soft Tissue
- Set Frozen Conference
- Topic IAC BST
- Presenter Chebib, Ivan A.,MD
Toggle columns: Diagnosis
| Case | Clinical history | Requester | Diagnosis |
|---|---|---|---|
| Case | Clinical history | Requester | Diagnosis |
|
| Right axillary and chest wall masses in 61 yo F. Cores of tissue of axillary mass. | Mjf79 | Fibromatosis |
|
| R hip • r/o infection. 89 yo F | Mjf79 | Fibrin • necrosis and acute and chronic inflammation. Up to 38 PMNs in 1 HPF Permanent: necrosis • fibrin and fibrous tissue with acute and chronic inflammation and wear debris reaction |
|
| right pelvis (65 yo F with h/o lung adenocarcinoma) | Mjf79 | FX1+Level) Metastatic carcinoma. Tissue scant • requested additional tissue for permanents. FX2 • 2A) Bone and bone dust. FX3) Rare atypical cells Permanent: A) Poorly-differentiated metastatic adenocarcinoma. B) Bone dust and debris; no definitive carcinoma is identified. C) Metastatic poorly-differentiated adenocarcinoma. |
|
| 69 yo M • interspinous ligament | Mjf79 | Pseudogout Permanent: Fibrous tissue and synovium with calcium pyrophsophate crystal deposits |
|
| 43 yo M with T10-T12 mass | Mjf79 | Chordoma Permanent: Chordoma • conventional type |
|
| 8 yo M with posterior mediastinal mass | Mjf79 | mature ganglioneuroma Permanent: Neuroblastic tumor most consistent with ganglioneuroblastoma • intermixed (Schwannian-stroma-rich). Frozen showed only ganglioneuroma |
|
| 24 yo F with 8th rib lesion | Mjf79 | fibrous dysplasia |
|
| 35 yo M T6 lesion | Mjf79 | Chondrosarcoma • low-grade Permanent: Chondrosarcoma • conventional (hyaline and myxoid subtype) • grade 2/3 |
|
| 61 yo F • left distal ulnar bone tumor | Mjf79 | Enchondroma |
|
| 23 yo F • left medial ankle mass | Mjf79 | tenosynovial giant cell tumor |
|
| 80 yo M • L2 vertebral lesion | Mjf79 | bone marrow w/ atypical infiltrating cells and probable fibrosis. Await permanents. Permanent - metastatic poorly differentiated carcinoma • most compatible with prostatic adenocarcinoma (based on IHC) |
|
| 42 yo F with right lower left soft tissue mass | Mjf79 | myxofibrosarcoma • high-grade |
|
| 21 yo M with right proximal humerus lesion | Mjf79 | Osteochondroma |
|
| 55 yo M with distal humerus lesion | Mjf79 | FX1 (humerus marrow margin): Positive for malignancy • FX2 (lesion): High-grade osteosarcoma Permanent: A) Positive for high-grade osteosarcoma. B) High-grade osteosarcoma (conventional - chondroblastic) |
|
| 9 yo F with buttock lesion | Mjf79 | Neurofibroma • present at margin Permanent: Plexiform and diffuse neurofibroma |
|
| 33 yo M with popliteal fossa mass | Mjf79 | sarcoma Permanent: synovial sarcoma • biphasic |
|
| 40 yo M with foot mass | Mjf79 | hemangioma |
|
| 54 yo F • left posterior thigh mass | Mjf79 | Intramuscular myxoma |
|
| 53 yo F • right axillary lesion | Mjf79 | Schwannoma |
|
| 32 yo F with R sciatic nerve mass | Mjf79 | MPNST Permanent: MPNST (patient was previously treated with radiation for MPNST of posterior thigh) |
