The ISBSTP is a non-profit organization founded in 2001 by a group of pathologists interested in collaboration, education, and sharing resources in #BSTpath
Joined October 2024
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International Soc of Bone & Soft Tissue Pathology retweeted
30 yo F with intramuscular thigh mass. No connection to bone on imaging.
Answer ✅ youtube.com/watch?v=kb737fpq…
WSI digital slide: kikoxp.com/posts/5130.
#BSTpath #pathologists #pathology #pathTwitter
International Soc of Bone & Soft Tissue Pathology retweeted
Multiple B/L 🫁nodules in a young woman.
Classic histology of epithelioid hemangioendothelioma(EHE) in the lung.
One of those diagnoses that is easy when you know the morphology, but can be a real diagnostic challenge when you don’t.
#PathTwitter #MedTwitter #LungPath
International Soc of Bone & Soft Tissue Pathology retweeted
Learn from leaders in the field, discover what’s next, and reconnect with your community at #USCAP2027!
Early bird pricing is available through January 13, 2027 .
Learn More ➡️ buff.ly/v1dj9SY
International Soc of Bone & Soft Tissue Pathology retweeted
An update on novel and emerging cutaneous soft tissue tumours, from two expert pathologists. Interesting reading, even if you do not practise dermatological or soft tissue pathology. #OpenAccess #PathX #dermpath #molpath
doi.org/10.1111/his.70262
International Soc of Bone & Soft Tissue Pathology retweeted
It doesn't get more classic than this!
Digital slide🔬kikoxp.com/posts/17369
Answer ✅ youtu.be/3u7uL9asZDg?si=7nlB…
Pattern explained: kikoxp.com/posts/10744
#BSTpath #pathology #pathologists #pathTwitter #dermpath #dermatology #dermatologia #dermtwitter
International Soc of Bone & Soft Tissue Pathology retweeted
Interdigitating reticulum cell sarcoma can be considered a malignant variant of Rosai-Dorfman disease! S100 protein was + (not shown).
Ravindran A, et al . Mod Pathol. 2023 Oct;36(10):100268. PMID: 37406859.
International Soc of Bone & Soft Tissue Pathology retweeted
Can't interpret mesenchymal tumors? This is nodular fasciitis, now accessible to those who need a little handholding! There's CISH for USP6 - get yours!
pubmed.ncbi.nlm.nih.gov/4250…
International Soc of Bone & Soft Tissue Pathology retweeted
This synovial sarcoma from the head and neck area has both poorly differentiated and biphasic zones! #UMiamiPath
International Soc of Bone & Soft Tissue Pathology retweeted
Pleomorphic hyalinizing angiectatic tumor, described years ago, is usually indolent; rare progression to high grade sarcoma is known.
Smith ME, Fisher C, Weiss SW. Pleomorphic hyalinizing angiectatic tumor of soft parts. A low-grade neoplasm resembling neurilemoma. MID: 8540605
International Soc of Bone & Soft Tissue Pathology retweeted
Kaposi sarcoma - note the hyaline globules (arrow). It is derived from lymphatic endothelium - confirmed a new way in Modern Pathology.
Schneider JW, et al. PMID: 41478362; PMCID: PMC12860498.
International Soc of Bone & Soft Tissue Pathology retweeted
This is a gastric mucosal biopsy: The clue to this "one stain diagnosis" is that GISTs seldom involve the mucosa.
Ortiz Requena D, et al. Synovial Sarcoma of the Gastrointestinal Tract. Mod Pathol. 2024 Jan;37(1):100383. PMID: 37972927.
International Soc of Bone & Soft Tissue Pathology retweeted
"Common" bland spindle cell lesions of breast
Myofibroblastoma
- Benign neoplasm of breast stromal myofibroblasts
- Typically treated with excision and are not known to recur
- Share genetic alterations with spindle cell lipomas
- IHC: Positive for CD34, ER, SMA and desmin
Dr. Cimino-Mathews #USCAP #pathology #PathX #pathtwitter #breastpath
International Soc of Bone & Soft Tissue Pathology retweeted
50 yo M. Floor of mouth mass. Look closely at cytoplasm. Diagnosis?
WSI digital slide (a FANTASTIC EXAMPLE of this entity!): kikoxp.com/posts/3116.
Answer ✅ youtube.com/watch?v=yVoYAm78…
#BSTpath #pathologists #pathology #pathTwitter #ENTpath
International Soc of Bone & Soft Tissue Pathology retweeted
"Common" bland spindle cell lesions of the breast
Desmoid Fibromatosis
- Typically non-syndromic in breast
- Clinically and radiographically mimics carcinoma
- Trend towards conservative, non-operative approach with consideration of tyrosine kinase inhibitors
- β-catenin positive (up to 70%), but metaplastic carcinomas and fibroepithelial lesions may also show nuclear β-catenin labeling; always include cytokeratin IHC
Dr. Cimino-Mathews #USCAP #pathology #PathX #PathTwitter #Breastpath
International Soc of Bone & Soft Tissue Pathology retweeted
50 yo man with 2 cm inguinal mass. Your diagnosis?
(hint: not all that has staghorn vessels is SFT!)
Digital slide: kikoxp.com/posts/4599.
Answer ✅ youtu.be/WnpmV331eRE?si=mUo8…
#pathology #BSTpath #pathologists #pathTwitter #gynpath #dermpath
International Soc of Bone & Soft Tissue Pathology retweeted
Cancer Immunotherapy Month is an opportunity to recognize the researchers working to advance new treatment approaches for sarcoma. Through continued investment in innovative research, we move closer to more effective therapies and better outcomes for patients.
Together, we're advancing research and accelerating progress toward better treatments for sarcoma.
#CancerImmunotherapyMonth #SarcomaResearch #Sarcoma #Immunotherapy #CureSarcoma
International Soc of Bone & Soft Tissue Pathology retweeted
Don’t be afraid 👹🎃👻🧙♂️
Leiomyoma with bizarre nuclei (symplastic leiomyoma)
Pay attention: karyorrhectic nuclei can mimic atypical mitoses
#path #medicine #pathology
International Soc of Bone & Soft Tissue Pathology retweeted
Extra-uterine endometrial stromal sarcoma has a knack for mimicking synovial sarcoma. The staghorn vessels and overlapping nuclei always send me down the wrong path at first but the collagen saves the day! Yay - Phew.
International Soc of Bone & Soft Tissue Pathology retweeted
VGLL3-rearranged Spindle Cell Rhabdomyoblastic Tumor: A Clinicopathologic and Molecular Genetic Study of 18 Cases with Consistently Indolent Behavior
✅ Just Accepted
📗 @ModernPathology
buff.ly/BfBQR4N
International Soc of Bone & Soft Tissue Pathology retweeted
20.
Two fungal hyphae you might see in the lung are Aspergillus (green circle, more common) and Mucor (red circle, less conmon). Aspergillus has septa and branches at acute angles, Mucor has few or no septa and has more irregular shapes.
Not always easy to tell them apart!
