<What's your diagnosis?> A full-term infant, 5 days old #Rdiag #RadSky #MedSky #NeuroRad #FOAMed

<What's your diagnosis?> Pt: 35 y/o Female CC: Palpable mass in the right inguinal region History: Mass present for 1 year. Incidentally palpated in the upper thigh, gradually increasing in size. No history of trauma. No tenderness. #Rdiag #RadEd #MedEd #FOAMed

<What's your diagnosis?> Pt: 36 y/o Female CC: 7-month history of extraocular muscle limitation and visual disturbance #Rdiag #RadEd #MedEd #NeuroRad #FOAMed

<What's your diagnosis?> Pt: 24 y/o male CC: Progressive Lt. parietal skull defect Hx: First noticed at age 6, gradually enlarging, no trauma, no significant medical history Symptoms: Asymptomatic #Rdiag #RadSky #MedSky #FOAMed #FOAMRad

<What's your diagnosis?> Pt: 60 y/o Male CC: Pain, weakness in bilateral lower limbs and urinary incontinence. #Rdiag #RadSky #MedSky #FOAMed #FOAMRad

<What's your diagnosis?> Pt：9 y/o Female CC：Progressive scoliosis for 6 years Height: -4 SD, Weight: -3 SD Upper/lower body ratio: 0.64 (normal: 1.1) Ophthalmologic Findings：Horizontal gaze palsy #Rdiag #RadEd #MedEd #NeuroRad #FOAMRad

<What's your diagnosis?> Pt: 42 y/o Male CC: Hypotonia, joint hyperextensibility, aphonia, micrographia, hyperreflexia, facial dystonia, cognitive decline Hx:Mid-teens: Hand tremor (onset) 35y: Gait disturbance (R foot drag) FHx: Mother affected, deceased #Rdiag #RadSky #MedSky #NeuroRad

<Aceruloplasminemia> ✅ Symmetric iron deposition: basal ganglia, thalami, dentate nuclei, red nuclei, cortex. 🩻 Imaging CT: Hyperattenuation MRI: T1 ↑, T2 ↓, T2* ↓↓ 🔑 Key: Deep gray hyperattenuation on CT is distinctive. 🩺 Clue: Early-onset diabetes. #Rdiag #RadSky #MedSky #NeuroRad #FOAMRad

Shingo Omata@shingoomata.bsky.social · 2y ago

<What's your diagnosis?> Pt: 55 y/o Male - Diabetes (insulin-dependent), alcohol abuse - DKA + 5-year cognitive decline (LTC placement) - Pigmentary retinopathy #Rdiag #RadSky #MedSky #NeuroRad #FOAMRad

<What's your diagnosis?> Pt: 55 y/o Male - Diabetes (insulin-dependent), alcohol abuse - DKA + 5-year cognitive decline (LTC placement) - Pigmentary retinopathy #Rdiag #RadSky #MedSky #NeuroRad #FOAMRad

<Meningioma & 3.8 ppm Peak> 💡 Accuracy: ✅ 3.8 ppm peak in top 3 → 96.9% ✅ 3.8 ppm/Cr ≥1.44 → 92.3% ✅ Lip-Lac/Cr ≥2.07 → 80.6% 💡 Alanine presence aids diagnosis #Rdiag #RadSky #MedSky #NeuroRad #FOAMRad PMID: 34211737

Shingo Omata@shingoomata.bsky.social · 2y ago

<What's your diagnosis?> Pt: 73 y/o Male #Rdiag #RadEd #MedEd #NeuroRad #FOAMRad

<What's your diagnosis?> Pt: 73 y/o Male #Rdiag #RadEd #MedEd #NeuroRad #FOAMRad

<Dyke-Davidoff-Masson Syndrome> 🩻 Imaging - Hemiatrophy of the cerebrum w/ calvarial thickening - Hyperpneumatization of sinuses ipsilateral to the hemiatrophy 💡 DDx of cerebral hemiatrophy - Rasmussen encephalitis - Sturge-Weber synd. - basal ganglia germinoma #Rdiag #RadEd #MedEd #FOAMRad

Shingo Omata@shingoomata.bsky.social · 2y ago

<What's your diagnosis?> 20 y/o Male w/ seizures since age 3, dx idiopathic generalized epilepsy at 17. CC: multiple generalized seizures, LOC, & post-ictal confusion. Other: Learning difficulties, left school early, no FHx. #Rdiag #RadSky #MedSky #NeuroRad #FOAMed

<What's your diagnosis?> 20 y/o Male w/ seizures since age 3, dx idiopathic generalized epilepsy at 17. CC: multiple generalized seizures, LOC, & post-ictal confusion. Other: Learning difficulties, left school early, no FHx. #Rdiag #RadSky #MedSky #NeuroRad #FOAMed

<What's your diagnosis?> Pt: 18 y/o Female CC: 4-month history of headache and dizziness and a 3-day-history of lethargy and vomiting. Neurological exam: papilledema, impaired tandem gait, and right-sided dysmetria #Rdiag #RadSky #MedSky #NeuroRad #FOAMrad

<Papillary renal neoplasm with reverse polarity(PRNRP)> 💡 WHO 5th: Newly Defined Papillary Renal Tumor Subtype CT: Small, round, persistently enhancing lesion ("enhancing dot sign"). MRI: T2↓, mild diffusion restriction, pseudocapsule. 🔸 Some show internal heterogeneity. #Rdiag PMID: 37007143

Shingo Omata@shingoomata.bsky.social · 2y ago

<What's your diagnosis?> Pt: 30 y/o Female, previously healthy . An incidental renal mass was detected, leading to further evaluation. MRI: Predominantly T2↓ w/ mild diffusion restriction. #Rdiag #RadSky #MedSky

<What's your diagnosis?> Pt: 30 y/o Female, previously healthy . An incidental renal mass was detected, leading to further evaluation. MRI: Predominantly T2↓ w/ mild diffusion restriction. #Rdiag #RadSky #MedSky

<What's your diagnosis?> Pt: 9 y/o Male, previously healthy CC: Frontal headache x2 wks, worsened in last 2 days Assoc: N/V, photophobia, b/l eye pain ROS: No trauma #Rdiag #RadSky #MedSky

<Sarcoid Myopathy> ✅ “Tiger Man Sign” – patchy muscle involvement in granulomatous myositis. 🩻 MRI: Contrast-enhancing granulomas, T1↑, T2↑. 🩻 PET/CT: Hypermetabolic lymphadenopathy + intramuscular & fascial lesions. 🔬 Non-caseating granulomas #Rdaig #RadSky #MedSky PMID: 30637499

Shingo Omata@shingoomata.bsky.social · 2y ago

<What's your diagnosis?> Pt: 53 y/o Male 🔹new-onset gait ataxia 🔹muscle weakness of the proximal thighs #Rdiag #RadSky #MedSky

<What's your diagnosis?> Pt: 53 y/o Male 🔹new-onset gait ataxia 🔹muscle weakness of the proximal thighs #Rdiag #RadSky #MedSky

<Sialodochitis fibrinosa (kussmaul disease)> 🔍 Key Imaging Findings: ✅ MRI: Dilated main parotid ducts 🩻 ✅ No masses or sialolithiasis 🚫 🔹 Clinical Clues: - Mucoid secretions expelled with compression - Recurrent, food-related parotid swelling #Rdiag #RadSky #MedSky PMID: 27759642

Shingo Omata@shingoomata.bsky.social · 2y ago

<What's your diagnosis?> 👩‍⚕️ 46 y/o Female 🔹 Recurrent parotid gland swelling & pain (5 years) 🔹 Triggered by food 🍽️ 🔹 Elevated eosinophils & IgE 🩸📈 #Rdiag #RadSky #MedSky

<What's your diagnosis?> 👩‍⚕️ 46 y/o Female 🔹 Recurrent parotid gland swelling & pain (5 years) 🔹 Triggered by food 🍽️ 🔹 Elevated eosinophils & IgE 🩸📈 #Rdiag #RadSky #MedSky

<Pneumoparotid> Retrograde air entry into Stensen’s duct from increased intraoral pressure. Causes: -Dental procedures, positive pressure ventilation -Wind instrument playing, psychological factors -CT puff-cheek technique DDx: Suppurative parotitis (painful, inflammatory) #Rdiag #RadSky #MedSky

Shingo Omata@shingoomata.bsky.social · 2y ago

<What's your diagnosis?> Pt：11 y/o Male CC：Bilateral cheek swelling, recurrent and painless x 8 months, refractory to antibiotics. #Rdiag #RadSky #MedSky

<What's your diagnosis?> Pt：11 y/o Male CC：Bilateral cheek swelling, recurrent and painless x 8 months, refractory to antibiotics. #Rdiag #RadSky #MedSky

<What's this incidental finding?> Pt: 50 y/o Male #Rdiag #RadSky #MedSky

<Bisphosphonate-Related Complete Atypical Fracture> 🩻 Features - Focal lateral cortical thickening at the fracture site - Transverse orientation of the fracture - Medial spike - Lack of comminution 💡Note: High risk of contralateral fracture💡 #Rdiag #MSKRad #RadSky #MedSky PMID: 21940585

Shingo Omata@shingoomata.bsky.social · 2y ago

<What's your diagnosis?> 64 y/o Female, post minor trauma. #Rdiag #MSKRad #RadSky #MedSky

<What's your diagnosis?> 64 y/o Female, post minor trauma. #Rdiag #MSKRad #RadSky #MedSky

CIPS (Calcineurin Inhibitor-induced Pain Syndrome) ✅ Acute symmetric pain in transplant pts on CNI ✅ distal → proximal joints ✅ MRI: subchondral/periarticular edema; T1↓, T2↑ ✅ Bone scan: calcaneal uptake↑ ✅ Treatment: Ca channel blockers #Rdiag #MSKRad #RadSky #MedSky PMID: 23615775

Shingo Omata@shingoomata.bsky.social · 2y ago

<What's your diagnosis?> Pt: 41 y/o Male HPI：POD 73 of cadaveric renal transplant: New onset bilateral pain in feet and ankles, ascending to knees. PMH: IgA nephropathy, HTN #Rdiag #RadEd #MedEd #MSKRad

<What's your diagnosis?> Pt: 41 y/o Male HPI：POD 73 of cadaveric renal transplant: New onset bilateral pain in feet and ankles, ascending to knees. PMH: IgA nephropathy, HTN #Rdiag #RadEd #MedEd #MSKRad

<Menkes disease> ✅ X-linked neurodegenerative disorder due to ATP7A mutation ✅ MRI: tortuous brain vessels, atrophy, delayed myelination ✅ Low copper enzyme activity affecting connective tissue, blood vessels, and hair structure #Rdiag #RadSky #MedSky #NeuroRad PMID: 23836947

Shingo Omata@shingoomata.bsky.social · 2y ago

<What's your diagnosis?> 6-month-old twins, born to a consanguineous couple, presented with hypotonia, hypothermia, seizures, and developmental delay. #Rdiag #RadSky #MedSky #NeuroRad

<What's your diagnosis?> 6-month-old twins, born to a consanguineous couple, presented with hypotonia, hypothermia, seizures, and developmental delay. #Rdiag #RadSky #MedSky #NeuroRad