Today's case is a mass at the cerebellopontine angle (CPA) with classic features of an extra-axial tumor: CSF cleft (yellow arrow), displacement of subarachnoid vessels (blue arrow), and displacement of gray matter (red arrow). In addition, there is expansion of the subarachnoid space along the skull base anterior/lateral to the mass.

Differential diagnosis of a CPA mass in an adult is schwannoma, meningioma, ependymoma, and metastasis (note that ependymoma is intra-axial). Of these, schwannoma is by far the most common at this location (90%), and this was indeed a schwannoma.

Image credit: radiologyassistant.nl

Rheumatoid arthritis is a well-known cause of inflammatory polyarthropathy that affects hands, feet, and other joints.

RA also has many potential extra-articular manifestations, as shown in the image.

Reference: FA Figus, et al. Autoimmunity Reviews 2021 (20),

Food Anti-Foaming Agents Market Growth to 2026

The global food anti-foaming agents market size was valued at USD 6.13 billion in 2018 and is projected to reach USD 7.54 billion by 2026, with a CAGR of 5.1% during the forecast period, 2019–2026.

No pressure! #NPH #hydrocephalus #radiology #radres #foamrad #foamed #neurosurgeryblog #medstudent #usmle #neurocirurgiabr #Repost @rad_bits

Hospital Guy's en London en 1941, se ve en la Imagen dos enfermeras tomando rayos x con un equipó portátil. Via @arrs_radiology #Radiology #FoamRad #radiologia #medicina #medicine #medlife #radtech #radiographer #education #teaching #imaging #xray #nursing #instamed

Tweeted

The sensitivity of microvascular imaging for movement artifacts helps the demonstration of ascites flow around peritoneal metastatic deposits. #FOAMrad #POCUS https://t.co/DuE67Z2uvJ

— Akos Jaray (@jarayakos) Apr 27, 2022

Classic Trident sign in a patient with osmotic demyelination syndrome secondary to acute kidney injury and rapid correction of hyponatremia. Join our Telegram Group for more radiology cases. Link in bio. . . . . . . . . . . . #radiology #xray #radiologia #medicine #radiologist #medical #mri #radtech #radiologytech #xraytech #doctor #healthcare #radiographer #radiologystudent #imaging #radiologylife #ctscan #medicalimaging #covid #radiologiaporamor #ct #nurse #medstudent #xrays #ultrasound #surgery #hospital #xraystudent #medicina #FOAMrad https://www.instagram.com/p/CN7XSnzHrXg/?igshid=ypw4aexh1fjj

‏‎The filarial dance sign Repost from @northshorerads. That tiny echogenic structure moving about is a sign of scrotal filariasis. In this person who presented with scrotal swelling after spending some time abroad, the epididymis is swollen and the echogenic structure is a parasite within dilated channels. In this context, the filarial dance sign strongly suggests scrotal filariasis. Beware that it is sometimes seen in patients with distended epididymal channels after a vasectomy due to small bits of calcium floating about. Filariae are transmitted via mosquito bites. The nematodes multiple in the lymphatic system. They can cause scrotal swelling and hydrocoeles, and also gross limb oedema علامت رقص قطبی آن ساختار اکوژنیکی کوچک که در حال حرکت است ، نشانه ای از scrotal filariasis است. در این فرد که پس از گذشت مدتی در خارج از کشور با تورم اسکروتوم مواجه شده است ، اپیدیدیم متورم شده و ساختار اکوژنیک یک انگل در کانال های گشاد شده است. در این زمینه ، علامت رقص قطبی به شدت فیلاریازیس اسکروتومی را نشان می دهد. مراقب باشید که گاهی اوقات در بیماران با مجاری اپیدیدیم تحریف پس از وازکتومی به دلیل وجود بیت های کوچک کلسیم که شناور است ، دیده می شود. از طریق نیش پشه منتقل می شود. نماتدها در سیستم لنفاوی چند برابر می شوند. آنها می توانند باعث تورم اسکروتوم و هیدروکلل ها و همچنین ورم ناخوشایند اندام شوند. #رادیولوژی . #radiology #imaging #radiologist #radiographer #radtech #nurse #nursing #technologist #medstudent #medicalstudent #medschool #medicalschool #science #medicine #medicina #CT #MRI #ultrasound #xray #surgery #education #teaching #learning #POCUS #nursepractitioner #xraytech #physicianassistant #FOAMed #FOAMrad thexravdoctor Erratum - in manv patients.‎‏ https://www.instagram.com/p/B6adha_JNGD/?igshid=1ftkvfugwrlpv

HCSM News

I. Absolutely. ❤️. THIS🙌🙌🙌 HT @PhysioMeScience #physicaltherapy #physiotherapy #FOAMed #FOAMrad #FOAMus #MedEd #hcldr #PinkSocks #Fysio http://pic.twitter.com/HmMspl9AoN

— Jess Schwartz 🗽 (@DPT2Go) August 12, 2017

RT @DrAndrewDixon: I made this for #BananaDay. How are you showing your support? #FOAMrad https://t.co/RQ5oNFEe4P

I made this for #BananaDay. How are you showing your support? #FOAMrad pic.twitter.com/RQ5oNFEe4P

— Dr Andrew Dixon (@DrAndrewDixon) April 19, 2017

Today's case is a 70-year-old woman with bilateral thigh pain. Radiograph of the femurs reveals cortical irregularities of the lateral femurs, the classic location and appearance of bisphosphonate-related stress fracture. This is an atypical location for stress fractures in a patient who is not taking bisphosphonates.

Case courtesy of Matt Skalski, Radiopaedia.org, rID: 46147

This week we will be showing a case series of chest radiographs. Take a minute to look at the image before you read on. Can you spot the problem?

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This case demonstrates a mass at the left hilum. In addition, the left hemidiaphragm is elevated, indicating volume loss, and there is air outlining the aortic arch and proximal descending aorta (the so-called "Luftsichel sign," or "air sickle" due to its shape). Findings are classic for left upper lobe collapse (in this case post-obstructive due to the mass). The hyperinflated superior segment of the left lower lobe is what creates the air sickle, as it is situated betwixt the collapsed lung and the aorta.

Case courtesy of Dr Charlie Chia-Tsong Hsu, Radiopaedia.org, rID: 35263

La distanasia, encarnizamiento, obstinación o ensañamiento terapéutico es el empleo de todos los medios posibles, sean proporcionados o no, para prolongar artificialmente la vida y por tanto retrasar el advenimiento de la muerte en pacientes en el estado final de la vida, a pesar de que no haya esperanza alguna de curación. ¿Cuál es tu posición al respecto? Para ver más, síguenos en @diagnographic #radiologia #radiology #imagen #imaging #foamrad #foamed #medico #medic #doctor #medicine #medicina #tomografia #rayosx #ecografia #mamografia #resonanciamagnetica #medicinanuclear #foto #anatomiahumana #anatomy #education #educacion #medicalstudent #diagnographic #foam #cirugia #medicinainterna #hospital #clinical #fluoroscopia

A horse's tail #radiology #foamrad #foamed #usmlestep1 #usmlestep3 #usmlestep2 #radres #medicalcase #medicalcases #medicalcasestudy #med101 #medcourse #Repost @rad_bits with @repostapp ・・・ #neurosurgeryblog #neurocirurgiabr

Radiología es y deberá ser autoaprendizaje constante. Si no puedes estar presente, bendito Internet. #Radiology #FoaMed #FoamRad #radiologia #medicina #medstudent #education #teaching #imaging #iRad #ECR (en Mexico)