Neuroradiologist. MD, PhD, EDiNR Advisory Editorial Committee, @RevistaRADIOLO2 Medical AI trainer
HGUC, Castellón
Joined August 2022
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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.
authors.elsevier.com/a/1njX4…
✅Juvenile nasopharyngeal angiofibroma.
💡Look for anterior bowing of the posterior maxillary sinus wall (Holman-Miller sign), pterygopalatine fossa widening, and intratumoral flow voids. Avoid biopsy due to hemorrhage risk. Assess skull base and intracranial extension.
doi.org/10.4103/2156-7514.10…
👦A 14-year-old boy presents with a 1-year history of progressively enlarging palatal swelling, initially painless, followed by epistaxis, nasal obstruction, dysphagia, and right facial swelling.
🥼What is your differential diagnosis?
✅Juvenile nasopharyngeal angiofibroma.
💡Look for anterior bowing of the posterior maxillary sinus wall (Holman-Miller sign), pterygopalatine fossa widening, and intratumoral flow voids. Avoid biopsy due to hemorrhage risk. Assess skull base and intracranial extension.
doi.org/10.4103/2156-7514.10…
Doc Navarrow retweeted
👦A 14-year-old boy presents with a 1-year history of progressively enlarging palatal swelling, initially painless, followed by epistaxis, nasal obstruction, dysphagia, and right facial swelling.
🥼What is your differential diagnosis?
Doc Navarrow retweeted
🧠 What imaging patterns should radiologists recognize in autoimmune encephalitis?
This review explores the diverse appearances of AE, from limbic involvement to cortical, basal ganglia, brainstem & cerebellar findings, with key differential diagnoses.
pubs.rsna.org/doi/10.1148/ra…
✅Normal fat deposits in the cavernous sinuses.
💡Seen in 20–27% of patients on CT. They may be more prominent in patients with obesity or Cushing syndrome. When the appearance is characteristic, no MRI or follow-up is needed.
doi.org/10.3174/ajnr.A1398
☎️A resident calls you, concerned about a finding on a head CT.
😓“Should we recommend an MRI to investigate this further?”
What would you do?
✅Normal fat deposits in the cavernous sinuses.
💡Seen in 20–27% of patients on CT. They may be more prominent in patients with obesity or Cushing syndrome. When the appearance is characteristic, no MRI or follow-up is needed.
doi.org/10.3174/ajnr.A1398
Doc Navarrow retweeted
Not all enhancement patterns in tumefactive demyelination are equal:
🔄 Open ring → highly specific for demyelination
🧶 Cotton-ball or punctate → consider ADEM or
MOGAD
🟠 Homogeneous or nodular → be cautious, can mimic tumors
doi.org/10.1038/s41598-024-5…
Doc Navarrow retweeted
☎️A resident calls you, concerned about a finding on a head CT.
😓“Should we recommend an MRI to investigate this further?”
What would you do?
✅Cerebral sparganosis.
🐸🧠If you eat frogs, cook them first! Spirometra larvae can survive in the human body for decades, migrating through the brain and leaving inflammatory tunnels behind.
doi.org/10.3174/ajnr.A0659
🐸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?
✅Cerebral sparganosis.
💡Look for tubular or bead-like enhancement, punctate calcifications, and adjacent volume loss rather than mass effect. The tunnel sign reflects larval migration. Lesion migration on serial MRI is a particularly valuable diagnostic clue.
doi.org/10.3174/ajnr.A0659
Doc Navarrow retweeted
🐸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?
Doc Navarrow retweeted
Este artículo de la @RevistaRADIOLO2 recoge las opiniones de 102 radiólogos y residentes españoles sobre la IA en su práctica diaria: el 77% la percibe como una oportunidad para la profesión, con aplicaciones principales en cribado, interpretación de imágenes e informes, aunque la mayor preocupación sigue siendo el aumento de la carga de trabajo
Lee más 🔗f.mtr.cool/pnvlo9zifv
In English 🔗f.mtr.cool/f1yvbi3s0x
✅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.
doi.org/10.3897/folmed.64.e6…
👳♂️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?
✅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.
doi.org/10.3897/folmed.64.e6…
Doc Navarrow retweeted
👳♂️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?
Doc Navarrow retweeted
🧠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.
doi.org/10.1186/s12987-026-0…
