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All things bone and soft tissue pathology, here to help spread knowledge to the masses.

Joined July 2022
Photo by BST Path Education (@PathBst)Photo by BST Path Education (@PathBst)Photo by BST Path Education (@PathBst)Photo by BST Path Education (@PathBst)Photo by BST Path Education (@PathBst)Photo by BST Path Education (@PathBst)Photo by BST Path Education (@PathBst)Photo by BST Path Education (@PathBst)Photo by BST Path Education (@PathBst)Photo by BST Path Education (@PathBst)
This is excellent
Largest description of a recently described #bstpath entity, in @AJSPjournal. Proud to be part of this multi-institutional collaboration. pubmed.ncbi.nlm.nih.gov/3710…
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Outstanding work
This is "cutaneous" syncytial myoepithelioma...of bone! @JMcMahonG with @SintawatWang recognized that these morphologically distinctive tumors occur in diverse anatomic locations, including bone. pubmed.ncbi.nlm.nih.gov/3754… They have recurrent EWSR1::PBX3 fusions too! #BSTpath
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BST Path Education retweeted
Osteosarcoma or chondrosarcoma? Not such a simple question! #BSTpath
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Check out the latest and greatest from @SintawatWang, @MichaelMichal28, @Greg_Charville, @JMcMahonG, published in #VirchowsArchive: tinyurl.com/yc48rhpy Non-cutaneous syncytial myoepitheliomas are identical to cutaneous counterparts. Awesome! #BSTpath #dermpath #PathTwitter
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Oh yes. Count us in.
Happy Memorial Day all! Our Summer Seminar is Sat June 3 @ 8 am EST. Bone and Soft Tissue theme. All star line-up including Dr. Khin Thway, @JMcMahonG, @AndersMeyerMD Register: marylandpathology.org/events Coming soon, don't miss out! #BSTpath #PathTwitter
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Thigh mass biopsy from young adult. Differential? Next steps? Grade? #BSTpath
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More #PediPath, another rare entity: Child with large soft tissue thigh mass. Diagnosis? Next steps? #BSTpath
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Great ideas all. This should have been an NTRK-rearranged spindle cell tumor, except pan TRK IHC was negative... Sequencing instead showed an ALK fusion. Fascinating case. Prognosis linked to histology, in this case high grade.
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3 year old patient with history of large orbital mass, s/p chemotherapy and now resection. Diagnosis? #pedipath #pedspath #BSTpath #BSTpatheducation #pathtwitter
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Excellent work all! Yes, this is embryonal rhabdomyosarcoma with chemotherapy-induced cytodifferentiation. Some say portends a better prognosis, perhaps controversial (and therefore twitter appropriate). Location is classic. Great responses. #BSTpath #PediPath
Let's keep it going with back to school week. Adult patient: what is the site and diagnosis? #BSTpath #pathtwitter
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Great ideas all! Love the differentials. Agree with @GershonMD, this is tenosynovial giant cell tumor of prox thigh. Key to recognition is the larger epitheloid cells with peripheral rim of hemosiderin granules, so called ladybird cells. #BSTpath
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Since it's back to school season: this one's a foot mass from a toddler. Your diagnosis? Anything else in the differential? #pedipath #pedspath #BSTpath #dermpath
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Excellent work all! This is lipoblastoma. Clues are lobular architecture and fibrovascular septae at low power, spectrum of adipocyte maturation w/immature cells in myxoid areas, and zonal architecture with immature cells in periphery / adjacent to septae.
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BST Path Education retweeted
Radiolucency in frontal bone sagittal + axial CT. Here’s a clue: Keep a low power impression Mild expansive remodeling, cortical thinning, radial (spoke) trabecular bone radiating around a central lucency Diagnosis? @reith16 @ahlawat_shivani @LauraMFayad @LisaRooperMD – at Baltimore, MD
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Was on vacay with MrsPathBst (#WorkLifeBalance), now back with this classic case: adult patient, diffuse sclerotic L1 vertebra. #BSTpath #BSTpatheducation (Outstanding images courtesy of @JMcMahonG)
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Totally agree with @carina_dehner: this is Paget's disease. The polarized image is so perfect.
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40 year old man. What is the diagnosis? Can you figure out the site? Let's get those #MSKrads and #BSTpath skills to work. #BSTpatheducation Images courtesy of @kells108
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Correct - clear cell chondrosarcoma, great job all!
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BST Path Education retweeted
Anyone up for some #lowpowerpath #BSTPath ? @PathBst
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