#BSTpath
This was the biggest multinucleated giant cell of the week. SCC metastatic to bone. #SkyPath #PathSky #BSTPath #surgicalpathology
February 21, 2025 at 10:53 PM Everybody can reply
5 likes
Lesion in lumbar vertebrae of a young patient. Pott's disease suspected. PCR confirmed Mycobacterium tuberculosis. #pathsky #pedipath #BSTpath #skypath
February 20, 2025 at 10:12 PM Everybody can reply
1 reposts 9 likes
Giant cells on a smear 🤩🤩🤩 #pathsky #pathology #cytology #pathart #cytosky #bstpath
November 22, 2024 at 11:05 PM Everybody can reply
1 reposts 14 likes
Although not typically associated with a “round cell sarcoma” differential, solitary fibrous tumor can sometimes mimic small round cell type sarcomas such as Ewing sarcoma. #BSTPath, #UmichPath, #BSTpathGoBlue
March 16, 2025 at 6:12 PM Everybody can reply
Incredible "Schwannomatoid" pattern in a monophasic synovial sarcoma. #skypath #pathsky #BSTPath #Sarcoma
March 1, 2025 at 2:42 AM Everybody can reply
2 reposts 8 likes
❌ Basal Cell Carcinoma
basaloid cells with peripheral palisading
seen in skin, not esophagus
#GIPath #PathSky #BSTPath #Pathology
April 17, 2025 at 2:01 PM Everybody can reply
1 likes
Two giant multinucleated cells working hard! 💪🏻🔬 #PathSky #BSTPath
February 17, 2025 at 1:35 AM Everybody can reply
1 reposts 4 likes
After an exceptionally successful career with over 31 years in the UCLA Department of Pathology and Laboratory Medicine, Dr. Scott Nelson has announced his retirement.

#Pathology #path2path #PathSky #BSTpath #OrthopaedicSurgery
June 17, 2025 at 4:47 PM Everybody can reply
Desmoid fibromatosis can sometimes exhibit histologic features which overlap with nodular fasciitis, including focal areas of a more haphazard spindle cell arrangement. #BSTpath, #UMichPath, #BSTpathGoBlue
February 8, 2025 at 11:36 PM Everybody can reply
4 likes
Image of the Week!

Submitted by: Miruna C. Popescu, M.D.
Directory Profile: buff.ly/dc1Jnsa
Subspecialty: Bone, joints & soft tissue
Diagnosis: Plexiform neurofibroma

#Pathology #PathologyOutlines #BSTPath #PathSky
July 9, 2025 at 5:13 PM Everybody can reply
A legacy specimen photograph (> 55 yrs. old) of amputation for osteosarcoma involving distal femoral metaphysis. Sagittal section through knee jt. F = femur; P = patella; T = tibia. Both the femoral and tibial epiphyseal growth plates are clearly seen. #osteosarcoma #BSTPath
April 6, 2025 at 10:07 PM Everybody can reply
1 reposts 3 likes
#pedipath x #bstpath

Rapidly growing neck mass

DX: Nodular fasciitis
SMA+
NEG: Desmin, Alk-1, S100, Sox-10
Mitoses and extravasated red cells are common

WSI: utexas.pathpresenter.net/public/displ...
November 22, 2024 at 2:46 PM Everybody can reply
1 likes
Dealing with an unusual fibromyxoid spindle cell neoplasm (that is MUC4 negative)? Consider PLAG1! #BSTPath, #UmichPath, #BSTpathGoBlue
April 13, 2025 at 1:38 AM Everybody can reply
1 likes
❌ Adenoid Cystic Carcinoma
Cribriform architecture with small, uniform basaloid cells
Lacks the infiltrative nests and peripheral palisading typical of basaloid squamous cell carcinoma
#GIPath #PathSky #BSTPath #Pathology
April 17, 2025 at 2:01 PM Everybody can reply
2 likes
Image of the Week!

Submitted by: Addisu Alemu, M.D.
Directory Profile: https://buff.ly/3F9cOkI
Subspecialty: Bone, joints & soft tissue
Diagnosis: Bone - Erdheim-Chester disease

#Pathology #PathologyOutlines #BSTPath #PathSky
February 26, 2025 at 7:06 PM Everybody can reply
1 reposts 5 likes
#pedipath X #bstpath ... Pretty example of a peripheral schwannoma in a young child. Retained INI-expression here supports non-syndromic origin. In contrast, a mosaic pattern of INI-1 loss could suggest underlying schwannomatosis.

WSI: utexas.pathpresenter.net/public/displ...
December 17, 2024 at 2:52 PM Everybody can reply
1 reposts 1 likes
Hi #pathsky
- Toddler with expansile bone lesion L distal 1/3 fibula
- R/O LCH
- #TGIF

#bstpath #pedipath
June 27, 2025 at 8:27 PM Everybody can reply
2 likes
Esophageal mass in 65-year-old man
Is it #TooCloseToDiagnose?? 🧐🧐
A) Basaloid Squamous Cell Carcinoma
B) Adenoid Cystic Carcinoma
C) Basal Cell Carcinoma
#GIPath #PathTwitter #BSTPath #Pathology
April 17, 2025 at 2:01 PM Everybody can reply
2 reposts 4 likes
It’s been 5 years! Time for an update to my #CAPvirtualPath lecture on #PediPath tumors! Just in time for the new academic year!
Instagram LIVE Monday, June 30, 8pm ET/5pm PT with live Q&A
#BSTpath #oncology @pathologists.bsky.social
June 29, 2025 at 9:29 PM Everybody can reply
1 reposts 2 likes
Cellular spindled histiocytic pseudotumor can sometimes be confused for inflammatory myofibroblastic tumor (or other spindled cell neoplasms). The spindled cells exhibit irregular grooved nuclei which suggest the tumor’s histiocytic nature. #BSTPath, #UmichPath, #BSTpathGoBlue
March 16, 2025 at 6:08 PM Everybody can reply
Bizarre Parosteal Osteochondromatous Proliferation - a scary-looking benign lesion arising from the surface of small bones of hand & feet. Aka Nora lesion. Lobules of cartilage maturing into trabeculae of woven bone. Spindle cell proliferation between the bony trabeculae. #pathology #bstpath
March 7, 2025 at 2:44 PM Everybody can reply
2 likes