Doc Navarrow

1

13

609

Doc Navarrow@DocNavarrow·13h

👧A 7yo right-handed girl developed generalized rigidity, right arm jerking, impaired awareness and sphincter relaxation. After benzodiazepines, seizures resolved but aphasia and hemiparesis persisted, activating stroke code. MRI performed 2 h later. 🏥Differential diagnosis?

English

3

2

27

2.1K

Doc Navarrow@DocNavarrow·13h

😀And yes, excluding associated abnormalities such as Chiari I is essential.

English

1

104

Doc Navarrow@DocNavarrow·13h

1⃣ Persistent central canal A very long, thin, centrally located slit-like cavity without cord expansion or associated abnormalities may represent a persistent central canal rather than true syringomyelia. 2⃣ An incidental anatomical variant. Follow-up is often unnecessary. doi.org/10.1186/s13013…

🙋‍♂️Spinal MRI in an asymptomatic patient. 🥵A colleague asks for your opinion about a spinal cord finding that concerns him. 1. What do you see? 2. What would you do next?

English

22

1.5K

Doc Navarrow@DocNavarrow·13h

😀And yes, excluding associated abnormalities such as Chiari I is essential.

English

110

Doc Navarrow retweetledi

Doc Navarrow@DocNavarrow·1d

🙋‍♂️Spinal MRI in an asymptomatic patient. 🥵A colleague asks for your opinion about a spinal cord finding that concerns him. 1. What do you see? 2. What would you do next?

English

11

7

43

8.9K

Doc Navarrow@DocNavarrow·13h

1⃣ Persistent central canal A very long, thin, centrally located slit-like cavity without cord expansion or associated abnormalities may represent a persistent central canal rather than true syringomyelia. 2⃣ An incidental anatomical variant. Follow-up is often unnecessary. doi.org/10.1186/s13013…

English

92

Doc Navarrow retweetledi

@RevistaRADIOLOGIA@RevistaRADIOLO2·14h

Esta revisión tiene como objetivo describir las características de imagen de los tumores embrionarios no meduloblastomas. ¡No te la pierdas! @SENR_org elsevier.es/es-revista-rad… English version: elsevier.es/en-revista-rad…

Español

6

14

777

Doc Navarrow@DocNavarrow·2d

@pons_sabate Ánimo, Jordi 🫂

Español

150

Jordi Sabaté Pons@pons_sabate·2d

NO ESTOY BIEN. Desde que decidí hacerme la traqueostomía, hace casi 5 años, he vivido con un estrés continuo y una profunda inseguridad por no saber cómo gestionar los problemas del personal que me mantiene con vida. No hay peor tortura que tener que buscar personal urgentemente para cubrir un turno, porque si alguna vez no lo encuentro, sé que moriría asfixiado. Hace unas semanas exploté psicológica y emocionalmente. Pero estoy seguro de que en breve voy a estar bien, porque yo quiero estar bien. 💪

Español

524

1.5K

9.2K

331.3K

Doc Navarrow@DocNavarrow·2d

✅Histopathology revealed pituicytoma, a rare low-grade neurohypophyseal tumor. 💡Preoperative diagnosis is challenging, as it may closely mimic pituitary adenoma on MRI despite relatively preserved pituitary hormone levels. doi.org/10.3892/ol.201…

🙆‍♀️44-year-old woman with a 4-year history of irregular menstruation. Physical examination and pituitary hormone levels were unremarkable despite persistent symptoms. 👨‍⚕️What is your differential diagnosis?

English

9

33

2.1K

Doc Navarrow@DocNavarrow·2d

✅Histopathology revealed pituicytoma, a rare low-grade neurohypophyseal tumor. 💡Preoperative diagnosis is challenging, as it may closely mimic pituitary adenoma on MRI despite relatively preserved pituitary hormone levels. doi.org/10.3892/ol.201…

English

1

143

Doc Navarrow retweetledi

Doc Navarrow@DocNavarrow·4d

🙆‍♀️44-year-old woman with a 4-year history of irregular menstruation. Physical examination and pituitary hormone levels were unremarkable despite persistent symptoms. 👨‍⚕️What is your differential diagnosis?

English

25

4.4K

Doc Navarrow@DocNavarrow·3d

@zebrahoofbeat True, although the goal was more to discuss the differential than to guess the exact diagnosis. Subacute encephalitis with multifocal granulomatous lesions and initially negative microbiology has a very broad differential, including unusual infectious etiologies.

English

1

77

Chikitshock@zebrahoofbeat·4d

@DocNavarrow Difficult to make this diagnosis tbh

English

0

1

72

Doc Navarrow@DocNavarrow·5d

👷‍♀️48-year-old immunocompetent woman from a rural area with fever, focal seizures, progressive right hemiparesis, and rapidly worsening encephalopathy. CSF: lymphocytic pleocytosis with low glucose; initial microbiological studies were negative. 🥼Differential?

English

7

6

41

5.7K

Doc Navarrow retweetledi

HARADA Taisuke@bjtai·4d

RGNTはピーマンの輪切りのような見た目、とよく表現されるけど、ここまでピーマンっぽいのは初めて見た。

✅Rosette-forming glioneuronal tumor 💡It can closely mimic pilocytic astrocytoma on MRI. However, RGNT typically arises in midline structures around the 4th ventricle in young adults, whereas pilocytic astrocytoma more often occurs in the cerebellum of children/adolescents. doi.org/10.1186/s13000…

日本語

5

20

2.8K

Doc Navarrow@DocNavarrow·4d

Every time I see this pattern, it reminds me of the cross-section of some vegetable… but I can never remember which one 🫑🤪🌶️

👳‍♂️32-year-old man with left eyelid ptosis. 🙃A resident asks whether this could be a pilocytic astrocytoma. 🤔What is your differential diagnosis?

English

7

46

3.1K

Doc Navarrow@DocNavarrow·4d

@Shuji0071 I’m very sorry your family is going through this. I would strongly recommend consulting a neurologist in your area, as they will have access to the full clinical information and imaging. Wishing the best for you and your family.

English

1

18

Doc Navarrow@DocNavarrow·5d

✅Ectopic tentorial schwannoma 💡Although extremely rare, ectopic schwannomas should be considered in the differential diagnosis of dural-based tentorial masses. Compared with typical meningiomas, clues may include more heterogeneous enhancement, cystic/degenerative changes. doi.org/10.2176/jns-nm…

👩‍🎨Woman in her 50s referred after an incidental finding on a routine brain screening study. Neurological examination was completely normal, and no cranial nerve deficits were identified. 🤔What would be your differential?

English

7

43

2.4K

Doc Navarrow@DocNavarrow·4d

✅Granulomatous amoebic encephalitis due to Acanthamoeba 🧠Multiple enhancing granulomatous CNS lesions in a patient with fever, seizures, and negative initial microbiology should raise suspicion for free-living amoebae, even in immunocompetent patients. doi.org/10.1016/j.idcr…

👷‍♀️48-year-old immunocompetent woman from a rural area with fever, focal seizures, progressive right hemiparesis, and rapidly worsening encephalopathy. CSF: lymphocytic pleocytosis with low glucose; initial microbiological studies were negative. 🥼Differential?

English

9

51

4.5K

Doc Navarrow@DocNavarrow·4d

✅Granulomatous amoebic encephalitis due to Acanthamoeba 🧠Multiple enhancing granulomatous CNS lesions in a patient with fever, seizures, and negative initial microbiology should raise suspicion for free-living amoebae, even in immunocompetent patients. doi.org/10.1016/j.idcr…

English