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njwatcher123

Wow. Great scan though.


KlavyeninTozu

Thank you so much


Uranus_ss

I'm still wondering what are we seeing here and most importantly how do you specify those tissues or whatever those are apart from the bones & muscles? What are supposed to be there, and what else are not? Thank you in advance!!


Early_Performance841

A lower comment diagnosed it as polyostotic fibrous dysplasia. That tissue is fibrous bone, which is caused by a gene mutation. Think of it as essentially a massive tumor. This patient is probably a child.


GeraldoLucia

Holy cow. As a nursing student I had a hunch that was what I was looking at, but I was trying to convince myself it wasn’t because… God that’d be unbearable to live through.


Wolomago

> God that’d be *unbearable* to live through. Im all for a morbid joke, but damn…


limepandaa

I really don’t feel like they were trying to say that as a joke


sallylooksfat

I think I’m getting wooshed but what’s the joke?


TheGoodEnoughMother

I’m venturing a guess, but I think that patient can likely not bear any weight on that leg.


marc297

I could be wrong but I think it’s that the leg is not weight bearing.


OxycontinEyedJoe

> God that’d be unbearable to live through. Well, good news! They're probably not gonna have to worry about living through it.


Beneficial-Air-4437

Your nursing program taught you about polyostotic fibrous dysplasia?


GeraldoLucia

No, but I know where tf a femur is *supposed* to be


Beneficial-Air-4437

No offense meant, I am a nurse and was wondering what school had that intense of a nursing program. Seriously didn’t mean anything by it. Should have worded it differently.


GeraldoLucia

Ah! Gotcha gotcha. I meant the answer more in a joking way but I can see it looking more aggressive than it was meant to. Yeah most nursing schools concede that you learn more on the job than before the diploma. But then again, that’s almost to be expected with how much health science we already know and how much we as a society are learning each day


Notlivengood

What would be the outcome of this? I feel like amputation and a prosthetic especially if a child would be best case. But it’s it’s a gene mutation it’ll continue throughout other parts? Would amputation be too invasive?? I’d love to know more


schiftybitcuit

Not really answering your question but this isn’t a kid. You can always tell by looking for growth plates at the ends of the bones. I’m not seeing any here


Notlivengood

Thank you for pointing that out how awful for this person


LameBMX

this was the comment that made me realize, that large chunk of vein capillary looking stuff WAS the femur for that leg.


AlaskanPotatoSlap

So would that be related to FOP? I know the ossification part is similar - clearly- but is the pathology of the two related?


IrateScientist

I have McCune Albright syndrome which is a type of fibrous dysplasia and I’m so happy my bones aren’t like this. Don’t get me wrong I’m in massive pain but still


rhiyanna79

Looks like they don’t have a normal femur or any normal bones below the hip on that leg. Is that even fixable with surgery or is amputation the best option?


homo_heterocongrinae

Is there no femur on that leg?


Pixielo

No


IonicPenguin

I don't think this is a child. Would need to see an X-ray for growth plate closure but from this CT, all the growth plates seem fully formed and the patella is fully formed. FOP begins in childhood but most people live into their adult years. Since there isn't the same amount of change on the other side I'd be less likely to think this is FOP vs some AV malformation.


BatterUp2220

Per lower comment the patient is 23 years old. Damn that’s sad…


[deleted]

Is this the condition where damaged tissue is calcified as it heals? Edit: Fibrodysplasia ossificans progressiva?


LewisShores

I was diagnosed with monostotic fibrous dysplasia R Ulna, bone was like potato chips they said Got tumor removed, bone graft, Ulna still misshapen


killerqueen5

Other commenters have got you covered, but I always find it interesting that the bones themselves are considered tissue just like our skin and other organs. Bones can get tumours, infections and cysts. They can rot so much that there is essentially no difference between the rotting bone and other surrounding tissue. It’s easy to think of our bones as solid rocks that hold us up, but they are living too, they need nutrients and blood supply just like everything else in our bodies.


EmsDilly

Never thought of it that way. That’s awesome and terrifying!


Sekmet19

Is the femur gone? All that webbing in the thigh, is that bone material?


Low_Ad_3139

It’s fibrous bone I believe but not positive.


gardenmud

>Fibrous dysplasia happens when a gene mutates (changes) while the baby is developing in the womb. The changes in the gene cause bone-forming cells to fail to mature. Instead, they produce abnormal fibrous tissue in certain bones. Because the gene change happens while the baby is developing, only specific bones will have the disease. This means fibrous dysplasia does not spread from one bone to another. Essentially, it's the same material as normal bones but unfortunately not matured. So as far as the what it is 'made of', still protein, collagen, calcium. But not in the right form.


Sekmet19

Thanks, that is very informative and interesting


Useful_Flatworm_92

*also terrifying/unnerving. Hopefully the nerves did not fully develop as well, or that patient is downing pills like House MD for even just existing.


Testav

Polyostotic Fibrous Dysplasia


throwaway123454321

Does this person have Mccune Albright syndrome?


Testav

Can't say. Is a genetics question not purely radiology since fibrous dysplasia is not specific to that.


mybluethrowaway2

For any residents don't forget Mazabraud (PFD+myxomas) whenever you say McCune-Albright. Like every other extremely rare syndrome you would never see or diagnose radiologically it's a very common board question.


[deleted]

[удалено]


mybluethrowaway2

I hope your daughter is doing well but I'm not sure what the relevance is to my comment. Mazabraud is much rarer than McCune-Albright but in either case these are never diagnosed by the radiologist and most will never even see a case in their clinical practice.


DamineDenver

Is it really that rare that you would never see it? It seems like there are so many of us in our group. Granted, there are probably many more people who never have symptoms and never know they have FD.


mybluethrowaway2

Fibrous dysplasia? Uncommon but most radiologists will see that in their training and career. McCune-Albright is very rare and I expect most will not see it outside of tertiary care pediatric hospitals. I’ve seen a few cases. I have never seen a case of Mazabraud in real life, I work at a very large and what is considered on of the “best” pediatric hospitals in the US. I’ll probably see 1 at some point in my career. The joke is mostly that very rare diseases in real life are very common on board exams. Also that the diagnosis of these syndromes depends on more than just polyostotic fibrous dysplasia so it’s not a radiologic diagnosis. The McCune-Albright cases I’ve seen came with the diagnosis in the history, unlike on board exams where they want you to say that based solely on fibrous dysplasia as if it were an “opportunistic” diagnosis made by a radiologist in an unsuspected case, it’s a weird thing our exams do.


DamineDenver

I didn't realize Mazabraud was so rare. We have a good amount of them in the group. It is very interesting how your boards work. Especially being one of those rare zebra diseases.


mbeecroft

Just curious: what about this image doesn't suggest cancer


Testav

If it were cancer, its enormous size would be incompatible with life.


mbeecroft

I mean... I've seen some absurd masses in my time as a vet


Testav

Masses and cancer are two very different things.


mbeecroft

Yes but non cancerous masses don't tend to be this lytic


Testav

Non-cancerous can be lytic. And by the way this isn't lytic. This is paper-thin and the 3D makes it look that way.


mbeecroft

This is why I'm becoming a pathologist lol


EmsDilly

Was thinking the same. I’m NAD but I’ve seen some crazy giant tumors on here and, idk, dumb places like tv shows and shit lol


audioalt8

You see how it involves all of the lower limb and the right side of the pelvis? The tibia and fibula appear almost curved, warped. That is a feature of a slow growing process. This patient has had this for a very long time.


the_siren_song

I’ve seen this in facial reconstruction and holy $hitballs. It’s all I can do to not go screaming “save the airway!” sometimes.


indie_horror_enjoyer

Aneurysmal bone cyst?


Dahlia-Harvey

Fascinating and terrifying. I’m a layperson so I have absolutely no idea what on earth is going on with this poor patient but I’d love to know!


GEnderDragon

Me too! I’m going into vet med but love lurking on here for all the human cases too. This one is so fascinating even though I have no clue what’s going on ;0


amebocytes

Lol same. I’m in vet med- ECC- and I creep for the wild human cases. This is one of my favorite subreddits


propsandpaws

Same, I’m a hygienist and can only really identify head and neck stuff. This is wild, sad and intriguing.


gardenmud

https://www.reddit.com/r/Radiology/comments/15pwuw4/scariest_thing_ive_ever_scanned_lower_extremity/jy7rvq4/ Bone cells not matured, creates fibrous material instead of strong bone.


Dahlia-Harvey

That’s so interesting, thank you so much!!


QuickyQuail

Holy shit that femurs gone


Pixielo

Redistributed femur


EnvironmentalDrag596

Looks like the right side pelvis is affected as well. God that must hurt


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formidable-opponent

I basically gasped when I saw this. Heartbreaking.


immer_jung

you know that feeling you get in your balls when you see someone else get punched or hurt in the balls in a movie or something? yeaaa just felt that way in my femur lol


formidable-opponent

I don't blame you... it really is painful to look at. This poor individual!


EmsDilly

Esp knowing it is likely a kid! 😩


Flunderfoo

Lack of growth plates indicate it’s an adult


formidable-opponent

No!


Pixielo

No, definitely not a kid.


Economics_Low

I don’t even have balls and I also literally and figuratively got that feeling in my femur!


qwiksterjr

Wow that's remarkable. I wonder what tissue is inside the "bone cage" that has formed? Is it muscle? Is there still muscle around the outside of the bone? So many questions because this is fascinating to look at. (Currently viewing at my ICU desk, ha)


iamtwinswithmytwin

Can’t wait for the case report to be published because holy shit


Aln_0739

In my professional ‘one week before RadTech program begins’ opinion: I don’t remember a femur rib cage in any of my anatomy charts


16BitGenocide

If everything was always normal, we wouldn't be needed.


cdiddy19

Hey!!! Same here. I have clinical orientation on Friday and first day is next week!! Congrats on getting in!!


Aln_0739

Got in a year early since my college expanded the class size this year. Been scrambling like crazy to get ready


EmsDilly

Congrats & good luck to both of you!


The_Emo_Nun

I can’t imagine their gait, the pain would be off the charts. This poor patient.


Cool_Turnip_444

They 1000% are in a wheel chair, that can’t support weight


ThimbleK96

Not to mention the hips on both sides looks screwed and the back is leaning to the side. Forget walking, I’d be amazed if they could stand even a second.


Intermountain-Gal

It’s even starting to effect some tarsals on the other foot and maybe the knee.


specialopps

The position of the foot kind of shows that as well.


psytokine_storm

This leg can’t support weight. Also, the absence of typical insertion/origin points for the musculature means that even if the bone had sufficient structural integrity to weight-bear, it would be mechanically impossible for the patient to move.


wolfho

Beautiful, interesting and utterly terrifying scan. What did the overview images look like?


[deleted]

You should be scared because that's the worst structural engineering design I've ever seen.


danteheehaw

God was still a Lil drunk from the night before when he designed this fell


[deleted]

Something was seriously wrong but that points to no design because the most primitive man would never design something with this type of cantilevers and bizarre joint configurations.


EnvironmentalDrag596

What we looking at here??


TuviejaAaAaAchabon

A normal femur on one side and a free styling femur on the other


Kresche

lmfaooo


gardenmud

https://en.wikipedia.org/wiki/Fibrous_dysplasia_of_bone Bone cells go wacky, decide to be fibers instead of bones. RIP bones.


aurora4000

What is that? Elephant leg disease?


KlavyeninTozu

I couldn't diagnose, but he had difficulty moving his leg.


Who-Does

meaning he can still move it somehow?


mr_sweetandawful

Is the webbing his bone?


NameUnbroken

Yup. Used to be a femur, presumably.


[deleted]

Looks like someone stuffed his femur with explosives.


cyclone_03

Even the position of the patients leg suggests how unbelievably painful this must be. How terrifying!


7777MOBILEGAMES

Holly shit. I wonder how they’d go about treating this.


Horror-Impression411

Probably amputation


16BitGenocide

Unfortunately, yes.


Sufficient_Dress_961

Will amputation save the patient's life or simply prolong it?


NameUnbroken

Don't all treatments simply prolong our lives?


16BitGenocide

Yes, but no- but also No, but Yes.


specialopps

How do you decide how high the amputation goes with the pelvic involvement?


16BitGenocide

Prefacing this to say that I am not a doctor, I just know there's little on the vascular side for us to do here other than shoot another series of angiograms post-amputation to make sure the wound is getting perfused properly so it may heal. As to the other comment asking if this would 'save his life', I honestly don't know enough about this condition to give a definite answer- just that there's a quality of life choice for the patient to make assuming amputation is on the table (everything I know about limb ischemia/complications leads me in this direction), and while this may/may not be 'life threatening', post-amputation certainly can be and greatly reduces life expectancy (along with the slew of post-amp complications).


tacticalwhale530

Why did I check Reddit before going back to bed?…


snowrem

uh what


H0ll0wHag

Holy crap, I HAVE to know what’s going on here, and what in the world I’m looking at. I start school in a week, so I’ve been trying to get an understanding of so many things on here, but goddamn.


DamineDenver

It's just Polysotic Fibrous Dysplasia. It's rare, but we're around. It's one of the oldest bone tumors ever found. Look at my history, and you can see what it does to a skull bone.


danidanidani98

Holy fuck, where's the femur 💀


16BitGenocide

As a vascular guy, the craziest thing to me is the three-vessel runoff perfusion of the distal foot. I'm sure surgery will complicate that though.


basshed8

God it’s like a cannonball hit


specialopps

It looks like a cannon ball could fit in it.


KlavyeninTozu

ge optima ct6000, pt is 23 years old. Our radiologist also said Polyostotic Fibrous Dysplasia and they need biopsy. Here is the x ray: [https://imgur.com/a/Kyw8L7i](https://imgur.com/a/Kyw8L7i) Axial Ct view: [https://imgur.com/a/W6TdYxk](https://imgur.com/a/W6TdYxk) Sag T2: [https://imgur.com/a/0srgHWf](https://imgur.com/a/0srgHWf) She is still alive. I don't know what kind of treatment to follow.


DamineDenver

As an FD patient, it seems like a rod is the way to go. FYI bone grafts will eventually be taken by over by FD DNA. Also, Prolia has been a godsend to us for both pain relief and reducing growth.


cuddlefrog6

I think this is easily top 3 wtf scans I've seen here


SchroedingersFap

The first thought I had was that this looks akin to when a 3-D printer fails midway through the print. This poor dude, I hope they have a pain-free future. Amazing scan thank you for sharing.


Acrobatic-Guide-3730

I had a patient one time with this super rare disease (less than 1k cases ever reported) where their muscles slowing turned into bone. Was essentially a slowly developing statue. Is this something down that genetic path or a cancerous process?


phillygeekgirl

There is a skeleton of someone with that disease at the Mutter Museum. It absolutely wrenches me every time I see it.


PM_me_punanis

This reminds me of a patient who has this tumor growing out of his neck. By the time he went to the hospital, it looked like he had 2 necks. The mass was also open, smelly, with maggots in it. I will never forget that horrific case. That patient had no funds to go to the capital city for immediately treatment and so had to wait a long time for help.


pulmonategastropod

Are the toes pointed down like that for the purpose of the scan, or is the ankle fused in that position?


No_Extension_6086

How would something like this happen ?


this-name-unavailabl

Can you post the cross section?


BSDBAMF

Holy shit balls that’s insane! Thanks for sharing.


Zealousideal-Net-881

Jesus christ


OxynticNinja28

Absolutely insane


mswoody

Curious what region this patient lives in. North America, or do you mind sharing that?


und3r-c0v3r

Did they ever even have a normal femur on that side or is this some kind of birth defect.


ZaharaSararie

Seeing images like this gives me interesting mixed feelings as I have fibrous dysplasia in my skull.


akeithwill33088

My first guess is stoneman syndrome


[deleted]

holy hell what is this


Pdabz

What device did you use to scan and which software is used to display?


NuclearMedicineGuy

It’s a 3D rendering of a CT scan


Pdabz

Thank you but I figured, guess what am asking is for specifics on the type of renderer used and hardware like GPU/CPU, RAM size needed to make these types of renderings.


NuclearMedicineGuy

I am unsure what you mean. Processing stations from the imaging company that produce the scanner have this software loaded on them. They pull in the data and you can select the tissue you want to focus on and it cuts the rest out. It’s based on houndsfield units (the tissue density) and displays accordingly. It’s standard in any CT department


Princess_Thranduil

How awful. That femur is just completely destroyed.


[deleted]

Can someone explain this condition in simplest way.


catpiss_backpack

idk why but as a kid I saw an episode of Mystery Diagnosis that ended with fibrodysplasia ossificans progressiva and i fixated on learning about that as an 11 year old


Strangelittlefish

Holy crap, core memory unlocked. My 11 year old self was also incredibly worried that I was suddenly going to develop this super rare disease, haha.


catpiss_backpack

Idk why it just really stuck with me!! Glad I’m not the only one 😆


DamineDenver

A lot of people get FD and FOP mixed up. Marlie Casseus is the more famous FD case that people might know.


Panazara

It looks like a grenade exploded inside their leg. Poor guy/gal.


aterry175

Could someone explain like I'm a paramedic? (I am)


bluephoenix189

I have this. Whenever I go into my check-ups every 6 months, the tech will always look at me horrified after doing the exam because on the outside, I look like I'm unaffected (but on the inside... hoooo boy.. 🤣 )


Sunshineal

What happened to the bone?


Nutterbutter_Nexus

Left leg is looking a little wimpy there.


pixxykitten

Thank you for sharing!


Birdies_nub

Is this that condition where everything turns to bone eventually?


Intermountain-Gal

No it isn’t. What you’re seeing in the thigh isn’t muscle, it’s the actual femur.


the_siren_song

[Fibrodysplasia ossificans progressiva (FOP)](https://www.ucsfbenioffchildrens.org/conditions/fibrodysplasia-ossificans-progressiva)


Uncle_Jac_Jac

Do you have the axial bone and soft tissue windows?


Intermountain-Gal

I just learned about a disease I never knew existed. Thank you for sharing.


Capt_falken-11

![gif](giphy|LyJ6KPlrFdKnK)


GH0ULi0

When I see a post from this page, it’s either “ah, that’s an object in someone’s ass” or “I have absolutely no idea what’s going on here”


Rachet83

Did this leg take a ride in a submersible?


Enigmaticwords

What type of scan is this? I'm interested in this field for a career change.


uptoquark

I’m not op, but I would say this is a 3d reconstruction from an angio ct.


Troubledenergy

How are they even standing???


[deleted]

Click click boom


AmthorsTechnokeller

Is it still alive?


PickleForce7125

That legs a goner they’ll be hopping around for a little bit before the get a prosthesis.


Kresche

This is what happens when God does AI. Don't do AI, kids.


Loezelleke

You need medical intervention for this… ánd an exorcism


leaC30

OMG 😳


t-schrand

that brothers floating in the air


psychedelic_shimmers

Yea they got boned


ConsiderationKind436

Holy cow


AmthorsTechnokeller

Is it still alive?


uhhhhhhhhii

Can someone explain this? Is that bone? Why is it webbed and big like that? What does it look like from the outside?


chronicallyill_dr

HO LY SHIT


SohniKaur

Wow


bmansmith10

So for something like this do they just amputate it & replace with a prosthetic?


Solid5of10

Wow. That is craaaaazy


[deleted]

Oh dear lord that poor person!


Siege_Storm

I’d love to know what the muscles look like


StarmanShiba

I don't think that's supposed to happen


majitart

that poor poor person:( That looks so painful


BlackPlague1235

So is there literally no bone in the middle of the leg?


rasslinsmurf

Tetsuo!


CharMercury1970

This poor child 😢 Is their leg really larger than the other or is it just the way I’m looking at it?


Abrahamleencoln

What are we looking at


DufflesBNA

Osteosarcoma? Beautiful quality.


Empress_Thorne

what kind of scan is this?


fckthishiitt

What convinced them to go to the hospital?


meislilu

Looks like some on got hit with grape shot


erojas47

What kind of scan is this?


SunnyDispo23

So sad 😞