NEW RESIDENT UNKNOWNS:
CASE #3
15♂️ w/ pedunculated lesion on upper back
🔬 WSI: https://kikoxp.com/posts/27919
💡 Answer: https://kikoxp.com/posts/27920
📺 Video: https://youtu.be/DBBSB_tD4-s
#bstpath — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #bstpath, aggregated by home.social.
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NEW RESIDENT UNKNOWNS:
CASE #230♀️ w/ tender nodule on arm
🔬 WSI: https://kikoxp.com/posts/27917
💡 Answer: https://kikoxp.com/posts/27918
📺 Video: https://youtu.be/bnHQDAtPOGc -
NEW RESIDENT UNKNOWNS:
CASE #152♂️ w/ lesion on oral mucosa
🔬 WSI: https://kikoxp.com/posts/27915
💡 Answer: https://kikoxp.com/posts/27916
📺 Video: https://youtu.be/YZsFddDg7e0 -
It's that time of year again, so I figured now would be a great time for a new "New Resident Unknowns"! 😉
Bonus: Beginner's Guide to Approaching (& Describing) Unknowns 📖🤔
Watch On:
YT ➡️ youtu.be/W5g2NvYrZKE
Kiko ➡️ kikoxp.com/posts/27914 -
It's no secret that I love schwannomas...
Now you can listen to me talk about them for 5+ minutes!
Watch on YouTube:
📺 https://youtu.be/LImAUp7lktAReview slides on Kiko:
🔎https://kikoxp.com/posts/26471 -
I'm back... with more #bstpath!
Check out my video covering 3 important spindle cell tumors:
CASE 1: https://kikoxp.com/posts/26465
CASE 2: https://kikoxp.com/posts/26467
CASE 3: https://kikoxp.com/posts/26469Watch on:
Kiko ➡️ https://kikoxp.com/posts/26463
YouTube ➡️ https://youtu.be/8Fp1kDtfASs -
My new video will be out Friday, but for now, here's a sneak peak...
Can you guess the diagnosis at 1x? #tooFARtodiagnose
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38♀️ w/ breast mass
Questions:
➡️ What is the diagnosis?
➡️ What are some key morphologic features of this lesion?
➡️ What immunohistochemical stain(s) would you order?🔬WSI: https://kikoxp.com/posts/24049
💡Answer: https://kikoxp.com/posts/24051 -
70♂️ w/ arm mass
➡️ What's your diagnosis?
➡️ What are some classic radiographic and histologic features?
➡️ Any associated molecular abnormalities?🔬WSI: https://kikoxp.com/posts/24045
💡Answer: https://kikoxp.com/posts/24047 -
"Just passing through"
- Granular cell tumor infiltrating through muscle
#bstpath #dermpath #pathart @pathology -
"Chordoid/Chondroid"
- Chondroid area in an otherwise conventional chordoma
#bstpath #pathart @pathology -
Spindle cell hemangioma:
👉 Young adults, distal extremities
👉 Dermal/SQ nodule(s)
🔬 Solid + vasoformative
🔬 ±Associated thrombosed BV
🔬 Spindle cells may have small vacuoles (lipoblast-like)
🧬 IDH1/2 mutations (germline = Maffucci syndrome)
#bstpath #dermpath #pathboards @pathology -
Glomus Tumor:
💅 Tender, subungual nodule
🔬 Uniform small round cells
🔬 "Punched out" nuclei + distinct borders
🔬 Nested & perivascular arrangement
🔬 Rich vasculature (ranging from small to ectatic)
🔬 Hyalinized-to-myxoid stroma
🎨 SMA(+), Desmin(-)
#bstpath #dermpath #pathology #pathboards @pathology -
Diffuse Tenosynovial Giant Cell Tumor:
👨⚕️ Benign, but destructive recurrences
🩻 Large joints (knee, hip)
🔬 Infiltrative growth
🔬 "Villonodular" w/ cleft-like spaces
🔬 Mononuclear cells + MNGCs + foamy HCs
🔬 Dense collagen + hemosiderin
🧬 CSF1 rearrangements (1p13)
#bstpath #pathology @pathology -
28♂️ w/ severe degenerative joint disease of right hip
Questions:
➡️ What's your diagnosis?
➡️ Where does this entity most commonly occur?
➡️ What is the prognosis for patients with this tumor?🔬 WSI: https://kikoxp.com/posts/21743
💡 Answer: https://kikoxp.com/posts/21745 -
36♀️ w/ ankle nodule
✳️ Reactive, benign or malignant?
✳️ Any syndromic association(s)?💡 WSI: https://kikoxp.com/posts/20159
🔬 Answer: https://kikoxp.com/posts/20160 -
67♂️ w/ shoulder mass
✳️ Here's another example of glomus tumor 🔎
✳️ Compared to my previous case, this one has mainly solid growthCASE 1 ➡️ https://kikoxp.com/posts/15185
CASE 2 ➡️ https://kikoxp.com/posts/20059Learn more ➡️ https://kikoxp.com/posts/15186
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53♂️ w/ lesion on oral mucosa
➡️ Which component is neoplastic?
➡️ Is the neoplasm benign or malignant?🔬 WSI: https://kikoxp.com/posts/19807
💡 Answer: https://kikoxp.com/posts/19808 -
14♂️ w/ finger mass
This lesion is ______:
➡️ Non-neoplastic
➡️ Benign
➡️ Malignant🔬 WSI: kikoxp.com/posts/19790
💡 Answer: kikoxp.com/posts/19790 -
69♀️ w/ lower leg mass
➡️ Differential diagnosis?
➡️ Any helpful morphologic features?
➡️ What IHC would you order to confirm?🔬 WSI: https://kikoxp.com/posts/19599
💡 Answer: https://kikoxp.com/posts/19600 -
It's been awhile since I've posted an example of my favorite entity, so here's a schwannoma with some interesting degenerative changes 😊
🔍 Take a closer look: https://kikoxp.com/posts/19484
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It's been awhile since I've posted an example of my favorite entity, so here's a schwannoma with some interesting degenerative changes 😊
🔍 Take a closer look: https://kikoxp.com/posts/19484
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Here's the answer to Tuesday's case:
➡️ Conventional osteosarcoma with giant cell-rich & telangiectatic features ⬅️
💡 Learn more: https://buff.ly/3FUH5Aw
Thanks to Dr. Gjorgova for being my mentor for this project! 👍
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Happy new year #medmastodon! 🎉🥂🎆
Here's a case from my poster presentation at the GAP Annual Meeting:
45♀️ w/ painful plantar foot mass
➡️ Benign or malignant?
➡️ Typical imaging findings?
➡️ Helpful histologic features?💡 Answer this Thursday (5/5)!
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They say imitation is the sincerest form of flattery...
So I suppose that's what's happening with this dedifferentiated liposarcoma trying it's best to look like a myxoid liposarcoma 👯
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67♂️ w/ deep thigh mass
This is a diagnosis of exclusion...
➡️ What do you need to rule-out?
➡️ Which histologic features would be supportive?
➡️ How would you grade this?🔬 WSI: kikoxp.com/posts/18776
💡Answer: kikoxp.com/posts/18777 -
As a holiday treat, here's a cute reminder that not all GI polyps are epithelial:
✨ Schwann cell hamartoma ✨
Happy holidays everyone! ☃️🎄🥂 -
60♂️ w/ destructive sacral mass
➡️ Most likely diagnosis?
➡️ How would you confirm?
➡️ Any molecular abnormalities?🔬 WSI: http://buff.ly/3V49UAc
💡 Answer: http://buff.ly/3PBKBV3 -
46♀️ w/ slow-growing, painless finger mass
➡️ What's your differential diagnosis?
➡️ Any molecular abnormalities?🔬 WSI: http://buff.ly/3UqS227
💡Answer: http://buff.ly/3ujhJHt
📺 Video: http://buff.ly/3gZ3Nzd#pathology #bstpath #pathresidents #meded #digitalpathology @pathology
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53♂️ w/ retroperitoneal soft tissue mass abutting the pancreas.
➡️ What's your differential diagnosis?
➡️ What additional testing would you order?🔬 WSI: http://buff.ly/3wDoDZo
💡Answer: http://buff.ly/3VuQFAL
📺 Video: http://buff.ly/3QYOmUf#pathology #bstpath #pathresidents #meded #digitalpathology #pathmastodon #pathmast #pathstodon #pathodon @pathology
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23♀️ w/ rapidly growing soft tissue mass near clavicle
➡️ What's your differential diagnosis?
➡️ What imaging findings would you expect?🔬 WSI: http://kikoxp.com/posts/14004
💡Answer: http://kikoxp.com/posts/14100
📺 Video: http://youtu.be/Nqh8U3FIVfY#pathology #bstpath #pathresidents #meded #digitalpathology #pathmastodon #pathmast #pathstodon #pathodon @pathology
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"Lovely to see, but a pain to have"
- Glomus tumor#pathology #pathart #bstpath #dermpath #pathtwitter #pathmastodon #pathstodon #pathodon #pathmast @pathology
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CW: Duodenal parasite under my microscope
Here’s a case of duodenal #Giardiasis (causative organism Giardia lamblia) at 200x magnification. The #Giardia organisms are somewhat tear-drop shaped and resemble falling leaves, overlying the surface of the duodenum (the first segment of small bowel after the stomach). The duodenal mucosa is inflamed.
#pathology #pathart #bstpath #pathmastodon #GIpathology #InfectiousDisease
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"Curvilinear vessels"
- Myxofibrosarcoma#pathology #pathart #bstpath #pathtwitter #pathmastodon #pathstodon #pathodon #pathmast
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Boost RT from https://twitter.com/vhnguyenmd/status/1181924804091404290?s=61&t=LcC9P_5d7eE509nDaQ0VvQ
#ToCloseForDiagnose #BSTpath #PediPath
Distal femur - ABC is definitely in the DDx
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@paravatar a few on med-mastodon.com server and try #pathology #bstpath #pathart #medmastodon #pathmastodon
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CW: A case of endometriosis under the microscope
A really florid case of #endometriosis down my #microscope on low power magnification. This is a cross section of small bowel (the compressed lumen visible on the right). The endometrial glands (left of my black line) are expanding and distorting the muscular wall of this segment of bowel. There are fibrovascular adhesions overlying the outside surface (the serosa) of the bowel.
Endometriosis is the presence of endometrial tissue outside the uterus (most often around the ovaries and adjacent structures - but can occur anywhere). It causes significant morbidity from pain, infertility and an associated risk of ovarian cancer.
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"Deceptively bland"
- Low-grade fibromyxoid sarcoma#pathology #bstpath #pathart #pathtwitter #medmastodon #pathmastodon @pathology
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"When the tumor looks back at you" 🕵🏼♀️
- Malignant Triton Tumor
(MPNST w/ rhabdomyoblastic differentiation)#pathology #bstpath #pathart #pathtwitter #medmastodon #pathmastodon
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"Not needed, but always helpful"
- Lipoblasts in ALT/WDL
#pathology #pathtwitter #pathmastodon #bstpath #pathart -
quite a nice summary—just of note
because a surgeon was asking me
about this the other day—IDH1/2
mutations are seen in both benign
and malignant cartilaginous tumours.cartilage is always so weird 🤷🏻♂️
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My #bstpath wallhangers were a surprising hit, so I decided to make a more ✨polished✨ version
Please enjoy & let me know if you notice any errors!
Also available as a downloadable pdf:
➡️ bit.ly/3WNZIOp ⬅️ -
What's in my "MEGA INDEX"? 🤷🏼♀️
✅ ALL #pathtwitter & #pathmastodon posts
✅ ALL #kiko25 posts + digital slides
✅ ALL unknown cases + videos
✅ #dermpath + #bstpath + MORE!So... basically everything 👍
➡️ kikoxp.com/posts/9579 ⬅️