DZI20-198

Request details

Request type Study

Subspecialty Bone and Soft Tissue

Set Frozen Conference

Topic IAC BST

Presenter Chebib, Ivan A.,MD

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Toggle columns: Diagnosis

Case	Clinical history	Requester	Diagnosis
Case	Clinical history	Requester	Diagnosis
Case 1	Right axillary and chest wall masses in 61 yo F. Cores of tissue of axillary mass.	Mjf79	Fibromatosis
Case 2	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
Case 3	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.
Case 4	69 yo M • interspinous ligament	Mjf79	Pseudogout Permanent: Fibrous tissue and synovium with calcium pyrophsophate crystal deposits
Case 5	43 yo M with T10-T12 mass	Mjf79	Chordoma Permanent: Chordoma • conventional type
Case 6	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
Case 7	24 yo F with 8th rib lesion	Mjf79	fibrous dysplasia
Case 9	35 yo M T6 lesion	Mjf79	Chondrosarcoma • low-grade Permanent: Chondrosarcoma • conventional (hyaline and myxoid subtype) • grade 2/3
Case 10	61 yo F • left distal ulnar bone tumor	Mjf79	Enchondroma
Case 11	23 yo F • left medial ankle mass	Mjf79	tenosynovial giant cell tumor
Case 12	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)
Case 13	42 yo F with right lower left soft tissue mass	Mjf79	myxofibrosarcoma • high-grade
Case 14	21 yo M with right proximal humerus lesion	Mjf79	Osteochondroma
Case 15	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)
Case 16	9 yo F with buttock lesion	Mjf79	Neurofibroma • present at margin Permanent: Plexiform and diffuse neurofibroma
Case 17	33 yo M with popliteal fossa mass	Mjf79	sarcoma Permanent: synovial sarcoma • biphasic
Case 18	40 yo M with foot mass	Mjf79	hemangioma
Case 19	54 yo F • left posterior thigh mass	Mjf79	Intramuscular myxoma
Case 20	53 yo F • right axillary lesion	Mjf79	Schwannoma
Case 21	32 yo F with R sciatic nerve mass	Mjf79	MPNST Permanent: MPNST (patient was previously treated with radiation for MPNST of posterior thigh)