 So, yes, so thank you again. And let's see if we have any questions. How to tell benign from a lignin soft tissue lesion, the elbow, right of my sarcoma, my other benign, okay? So, first thing I do is I wanna see if something is a solid enhancing lesion, okay? So if you have a cystic lesion in MSK, it's not usually gonna be malignant. So first thing is to detect if you have a solid lesion. If you have a solid lesion that is enhancing, you kind of need to keep malignant in the differential. There are benign lesions, but we have to, we have to probably biopsy it if we see a solid lesion. The veins malformation case, if you looked at it carefully, it had kind of more kind of lobulated, kind of little finger-like projections. Usually tumors are more ball-like, lesions are smooth. And on the post-contrast, would not have a solid heterogeneous enhancement. You kind of need to look at all the different projections to figure it out. Let's go to the LCH case. So LCH is a very cool entity. It is a fuller for sure. It is a lesion that on X-ray has a punched-out lidic lesion look. And that's what we're seeing here. And then when you go to MR, it can even have a soft tissue mass. I've seen it with a soft tissue mass. It can look very, very aggressive. But when you put it all together, if you have a lesion with massive edema around it, it should kind of make you think something inflammatory, infectious, LCH is kind of an inflammatory lesion. So that punched-out lidic look, you in the sarcoma doesn't really look like that, right? Sure, you can have a metastasis if you have neuroblastoma, but that benign periosteal reaction, a smooth reaction tells you that it's most likely not gonna be a malignant lesion. So LCH is something that can present as a solitary bone lesion and punched-out lidic lesion. And so it's important to suggest that because it's a very sensitive area. Parents wanna know that there's a possibility it could be a benign thing. It's very, very stressful for the parents and the families. And so if you can suggest that it could even be LCH, that's actually very helpful because if we just say you in sarcoma, these guys are extremely depressed and it might take weeks to get the biopsy. And so it's very important to kind of always think about LCH. Other questions. You describe the types of discoyed in your report. I usually, I don't really know the different types to be telling the answer to you. I do look for the Risberg variant, which I've never seen only in textbooks to see if you have those attachments there and the meniscus struts. I will kind of describe how big the meniscus is. So if it's going all the way to the notch, I'll make a point of saying that. If it's just kind of a borderline discoyed, I'll sort of say that as well. But then I also think it's important to describe if you see any tear, if you see that intra substance degenerative signal because that will kind of, there's sort of, I think of that as a little micro tears that are probably more prone to tearing as well. Okay, good. And so in pediatrics or bone lesions, I think they're actually more fun than in the adult side because in adults, any lesion could be a metastasis. But in PEDES, we get more of like the kind of real bone lesions behind emmeligans. So you can really use your, I have a whole other talk on pediatric bone lesions, but you can really use your location and imaging findings to actually predict more of the histology. Okay, so tallow fracture versus triplane. So tallow fracture is, again, the best way to think of it is that it's an evulsion fracture. So an evulsion fracture of the synismotic ligament. So you have the synismotic ligament is going to be pulling off the anterolateral corner of the tibial epiphysis. And so what we're seeing here is that this piece of epiphysis of ulces off and that produces a salt of hers three fracture. So that's all it is. A triplane is not an evulsion fracture. So it's a different fracture altogether. You have basically a fracture in three different planes. You have a vertical fracture through the epiphysis going through the vices and on the lateral view, the metastasio fracture. So it's three different parts to it. Salt of hers four. Okay, going back to the leukemia case. When you first look at the marrow, symmetry is, let me go back here. Symmetry is not going to help you as much in these cases. Very tricky. You want to get used to what normal marrow looks like. So on a stir image, if you just pull up a stir image from a case you have currently in your systems, stir images, the marrow should be grayish. You would never have a marrow that is this bright. If you compare that to cases you have, this should be alarming. When you go to the T1, notice that the marrow is darker than adjacent skeletal muscle. That is concerning for a malignant process. And then in PEEDS, the other hint you can do is look for areas that you expect to see fatty marrow. So even if you're someone with just hyperactive red marrow or a lot of red marrow, the epiphasies and the diapasies usually are still fatty. And so this is a red flag that you see dark epiphasies. So if you see dark epiphasies on T1, that should kind of make you think that this is concerning for a marrow replacement process. And I'm working on a technique with a fat fraction to basically be able to put a region of interest to actually give you a percentage. I've got a paper in PEEDS rat from a few years ago showing that if you do a fat fraction similar to liver, you can actually get a number and typically leukaemic cases are below 10%. And so if you have a ton of marrow infiltration, the fat and the marrow will go down, down, down, down. That's a way to kind of make it a little bit less subjective. Any other questions here were just about over the hour. Thank you so much for your compliments. I appreciate it. Happy to give more talks in the future. If you guys would like, these are hard cases. Pediatrics is definitely challenging, but it's fun. And that's what I love. So thank you guys for enjoying it.