#TheCal
"bluesky feels like an eensy little drop of serotonin delivered directly to my thecal sac"
"that was weirdly sensual"
"...how?"
"it's a euphemism"
"a euphemism for... what, exactly?"
"I don't know. I don't want to think about it too much"
November 19, 2024 at 4:17 AM
“CONTRAST DOESNT GO INSIDE THE THECAL SAC, WHY ARE THEY GETTING A CT, THEY NEED AN MRI!!!”

So anyways our house when he’s attending will have an office with closed doors because this setup ain’t gunna work long term
May 20, 2025 at 2:52 AM
Small note that thecal sac sounds like fetal sac, which reminds me of DAAS.
January 8, 2025 at 6:05 AM
Restoration of the rhombiferan echinoderm Lepadocystis moorei
#sciart
October 31, 2024 at 5:10 AM
WELL WELL WELL!!! 😑
What's this? My back hurts? My back actually, really hurts? The whole time? The entire time? For this long ... with like, nobody actually listening to me? Wow! So cool!

Anyway, I guess I have to see a surgeon.
November 6, 2024 at 7:38 PM
TIL what a thecal sac is.
January 8, 2025 at 5:14 AM
Whoa. At first glance it looks weird and paracrinoid like to me, as some of them have nonstandard thecal plating with large plates and recumbent appendages (brachioles). Let me get back to you. Any ideas where or when this specimen comes from?
January 31, 2026 at 2:37 AM
🧪🌐🦤
Exudates from Zostera marina regulate growth of the toxic dinoflagellate Alexandrium minutum across seasons and tidal levels, but effects are highly variable, suggesting seagrass meadows might be natural harmful algal bloom controllers.
bit.ly/meps15188
@gob-uvigo.bsky.social
@embl.org
August 10, 2026 at 11:29 AM
It's just a chewed up biserial graptolite colony with a bent proximal end. You can still see the thecal segments. It might be sitting somewhat rotated, but I think someone just gummed it a bit before it settled on the ocean floor. Possibly buried funny... maybe in a fecal pellet
December 21, 2023 at 8:06 PM
Seq study of a patient with chronic recurrent multifocal osteomyelitis identified OGFRL1 deficiency as genetic cause, with a subsequent mouse model suggesting pathogenesis by promoting osteoclastogenesis. TNFi therapy led to clinical improvement

Arthritis & Rheumatology
doi.org/10.1002/art....
January 26, 2026 at 1:38 PM
Well that’s the funny thing, it looks really different from regular fussellar graptoloid construction, but it’s architecturally the same. Some species even switch between fussellar stacked-rings and the strut-and-plate within the same colony, while keeping overall thecal morphology the same
August 14, 2026 at 5:59 PM
5+ weeks with cervical radiculopathy. 😭😫

(posterior disc herniation causing moderate effacement to the anterior thecal sac & mild canal stenosis @ C6-7). My orthopedic doc said severe, not moderate.
Waiting for a call from pain mgmt. Then, an evaluation. THEN, we can schedule an ESI. So.much.pain.
May 5, 2026 at 2:20 AM
I thought about this for a hot minute but I felt by moonlight wasn't the right time for my first go at an intra thecal catheter so I did a different level!

Another time perhaps and with the daylight hours 😇
December 15, 2024 at 9:07 AM
Oh. Fuck.
January 24, 2025 at 5:00 AM
What if you’re supremely lucky like me and have both? ✨

They said I have C5-6: Disc degeneration and broad-based disc osteophyte complex. Effacement of the ventral thecal sac. narrowing of spinal canal. Moderate severe narrowing of bilateral foramina.
Potential impingement of the C6 nerve roots.
April 10, 2025 at 11:17 PM
at L5/S1, there is “a focal midline disc bulge producing deformity of the thecal sac.” i guess that’s why my doctor thought the SI injections would help the most? even though the injections *did* help a bit, they BARELY scratched the surface of my daily pain. i need injections higher up FOR SURE!
November 12, 2024 at 6:17 AM
*quietly excited* Continuing our #Newgrounds #ArtFave5 journey, I'm honored to share "Jucika" by TheCal. Thank you, artist, for your wonderful work and for being part of this community! ✨💫
Jucika
"Jucika" by TheCal
www.newgrounds.com
August 27, 2026 at 4:05 PM
Word of the Hour: Vaginal - Of or pertaining to a vagina; resembling a vagina or sheath; thecal; as a vaginal synovial membrane; the vaginal process of the temporal bone. #WordOfTheHour #WordOfTheDay
August 7, 2026 at 3:00 PM
A new Cal tier on my🟠P site is available. This time not only voting benefits but also a special cal doodle aswell. This has limited slots however so take that into mind. patreon.com/TheCal?utm_m...
October 28, 2024 at 11:14 AM
I only know how to produce thecal matter.
January 4, 2025 at 5:00 PM
L4-5 New very large right paracentral disk protrusion distorting thecal sac causing severe right foraminal stenosis. No wonder my back hurts
November 6, 2024 at 9:51 PM
My MRI. The white line is my thecal sac, it holds cerebrospinal fluid, the gray line behind it is my spinal cord. It shouldn't be pinched. the disc has disintegrated and the vertebra collapsed together. During the collapse the top vertebrae has shifted back into my spine. That's spondylolisthesis
December 12, 2024 at 5:36 PM