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Neuroradiologist. MD, PhD, EDiNR
Advisory Editorial Committee, @RevistaRADIOLO2
Medical AI trainer

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📄Pleased to share our new paper in @AcademicRad

🧠We explored MRI indices modeling the tumor-edema relationship in meningioma, using logarithmic and scaling-derived formulations, and evaluated their association with histologic grade.

https://t.co/yAFOSSatFI

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✅Obstructive hydrocephalus due to aqueductal compression by a developmental venous anomaly (DVA).

💡Mesencephalic DVAs can rarely cause aqueductal stenosis. Radially converging medullary veins and a collector draining into the vein of Galen support the diagnosis.

https://t.co/JOd0bMliDG

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👳‍♂️A 65-year-old man with recurrent conjunctival squamous cell carcinoma presents with gait ataxia, cognitive decline, and urinary and fecal incontinence. No history of head trauma.

🧑‍⚕️What is the underlying cause of his neurological symptoms?

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✅Obstructive hydrocephalus due to aqueductal compression by a developmental venous anomaly (DVA).

💡Mesencephalic DVAs can rarely cause aqueductal stenosis. Radially converging medullary veins and a collector draining into the vein of Galen support the diagnosis.

https://t.co/JOd0bMliDG

[Doc Navarrow @DocNavarrow]

👳‍♂️A 65-year-old man with recurrent conjunctival squamous cell carcinoma presents with gait ataxia, cognitive decline, and urinary and fecal incontinence. No history of head trauma.

🧑‍⚕️What is the underlying cause of his neurological symptoms?

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🐸A 45-year-old woman with a 6-year history of severe headaches, intermittent seizures, and right hemiparesis. She reports eating undercooked frog meat 16 years earlier.

🏥What is your differential diagnosis?

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👳‍♂️A 65-year-old man with recurrent conjunctival squamous cell carcinoma presents with gait ataxia, cognitive decline, and urinary and fecal incontinence. No history of head trauma.

🧑‍⚕️What is the underlying cause of his neurological symptoms?

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🧠Can brain edema improve in hydrocephalus without reducing ventricular size?

🐭In mice, researchers used viral gene delivery and diphtheria toxin to selectively destroy choroid plexus cells.

👌MRI showed reduced brain edema despite persistent ventriculomegaly.

https://t.co/YtaW9exoLS

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🧠Can brain edema improve in hydrocephalus without reducing ventricular size?

🐭In mice, researchers used viral gene delivery and diphtheria toxin to selectively destroy choroid plexus cells.

👌MRI showed reduced brain edema despite persistent ventriculomegaly.

https://t.co/YtaW9exoLS

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@ANONYMO54928288 🙏Thank you so much for your kind words!

🌏If even one of the cases I share helps a colleague somewhere in the world, all the effort will have been worth it.

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✅Subependymal giant cell astrocytoma (SEGA) associated with tuberous sclerosis complex.

💡A growing or >1 cm lesion near the foramen of Monro suggests SEGA. Look for cortical tubers and subependymal nodules. Calcified subdural hematomas may reflect chronic VP shunt overdrainage.

https://t.co/HI7iedjhym

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👨‍🦱18M with prior intraventricular ependymoma resection and VP shunt placement at age 4. Now presents with headache, vomiting, blurred vision, and gait instability. Examination reveals five hypomelanotic skin macules.

🏥What are the imaging findings and differential?

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✅Subependymal giant cell astrocytoma (SEGA) associated with tuberous sclerosis complex.

💡A growing or >1 cm lesion near the foramen of Monro suggests SEGA. Look for cortical tubers and subependymal nodules. Calcified subdural hematomas may reflect chronic VP shunt overdrainage.

https://t.co/HI7iedjhym

[Doc Navarrow @DocNavarrow]

👨‍🦱18M with prior intraventricular ependymoma resection and VP shunt placement at age 4. Now presents with headache, vomiting, blurred vision, and gait instability. Examination reveals five hypomelanotic skin macules.

🏥What are the imaging findings and differential?

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👨‍🦱18M with prior intraventricular ependymoma resection and VP shunt placement at age 4. Now presents with headache, vomiting, blurred vision, and gait instability. Examination reveals five hypomelanotic skin macules.

🏥What are the imaging findings and differential?

[SERAM - Sociedad Española de Radiología Médica @SERAM_RX]

Diseño de investigación, interpretación estadística, manejo de bases de datos y publicación científica. El curso de Metodología de Investigación de #FormaciónSERAM ofrece una visión completa y aplicada del proceso investigador en Radiología, incluyendo el papel de la IA y las altmétricas en la investigación actual.

Más información 🔗 https://t.co/FZzYPxnvAl

[Whitfield Lewis, MD 🇦🇬🇺🇸 @whitfieldlewis6]

Before being able to pinpoint pathologies, you must first know normal variants. What is that hole doing in the basilar artery? What benign variant is this?

#FOAMed

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✅Neurosyphilis with cerebral and spinal cord involvement.

🕯️Syphilitic gummas may mimic metastases or lymphoma, with nodular or ring enhancement. Lack of diffusion restriction is not specific. Spinal myelitis may show the "flip-flop" or "candle guttering" signs.

https://t.co/Ip19XNTmrw

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👱‍♀️A 48-year-old woman presents with a 1-week history of sudden-onset limb numbness and binocular diplopia. No known malignancy, immunosuppression, or prior neurological disease. HIV negative. Tumor markers within normal limits.

👨‍⚕️What is your differential diagnosis?

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✅Neurosyphilis with cerebral and spinal cord involvement.

🕯️Syphilitic gummas may mimic metastases or lymphoma, with nodular or ring enhancement. Lack of diffusion restriction is not specific. Spinal myelitis may show the "flip-flop" or "candle guttering" signs.

https://t.co/Ip19XNTmrw

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👱‍♀️A 48-year-old woman presents with a 1-week history of sudden-onset limb numbness and binocular diplopia. No known malignancy, immunosuppression, or prior neurological disease. HIV negative. Tumor markers within normal limits.

👨‍⚕️What is your differential diagnosis?

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👱‍♀️A 48-year-old woman presents with a 1-week history of sudden-onset limb numbness and binocular diplopia. No known malignancy, immunosuppression, or prior neurological disease. HIV negative. Tumor markers within normal limits.

👨‍⚕️What is your differential diagnosis?

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✅Foster Kennedy syndrome secondary to a sphenoid wing meningioma.

💡Assess both optic nerves: unilateral atrophy with contralateral disc swelling can reflect compression plus raised intracranial pressure, or asymmetric bilateral optic nerve compression.

https://t.co/hKWIZjPtiE

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👩‍🦰A 25-year-old woman, 6 months pregnant, presents with 4 months of progressive left-eye visual loss, rapidly worsening over the past week, with new right-eye visual deterioration and frontal headaches.

🧑‍⚕️Which syndrome do you suspect?

[Doc Navarrow @DocNavarrow]

✅Foster Kennedy syndrome secondary to a sphenoid wing meningioma.

💡Assess both optic nerves: unilateral atrophy with contralateral disc swelling can reflect compression plus raised intracranial pressure, or asymmetric bilateral optic nerve compression.

https://t.co/hKWIZjPtiE

[Doc Navarrow @DocNavarrow]

👩‍🦰A 25-year-old woman, 6 months pregnant, presents with 4 months of progressive left-eye visual loss, rapidly worsening over the past week, with new right-eye visual deterioration and frontal headaches.

🧑‍⚕️Which syndrome do you suspect?