342 e-Letters

  • "Images In"...but what did these images add?
    Osama S.M. Amin MD, FACP

    Dear Editor,

    Sethiya et al presented a constellation of solid neurological signs in a middle-aged male.

    1. The author did not add a differential diagnosis list for this constellation?

    2. The MRI images do not "teach" anything. The right image is an axial T2 FLAIR one while the left image is a sagittal T2-weighted one. Hyper- or hypo-intense signals in the mesencephalon on these films; the p...

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  • Re:B12 and neurology
    Mohammed Naim

    Yes, brain regression is known in certain infiltrative and degenerative conditions, but, the problem as raised by Prof Agrawal S and Nathani S here is, that Ursula von Schenk et al from Germany, when first reported brain regression due to B12 deficiency followed by recovery shortly on therapy, it contradicted the very concept of atrophy and regression. And to the non radio/imaging experts it appeared simply that two ima...

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  • S Mansoni ovum is laterally spined, hence diarrhoea is often blood mixed
    Mohammed Naim

    Schistosoma mansoni parasitizes medium sized mesenteric veins and arteries and its ovum is armed with a lateral spine, so intestinal mucosa suffers on account of ova from mesenteric arteries reaching the mucosal capillaries. Spine helps rupture of capillary facilitating release of the ovum and blood into the lumen of the intestine. So diarrhoea in case of S mansoni infestation is often blood mixed, particularly in the ph...

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  • Transient global amnesia associated with rosuvastatin intake
    Loretta S Cheung

    On 24 April 2010 at about 8 pm I was taken to Accident and Emergency Department of Prince of Wales hospital (Sydney) by my daughter because I could not recall what had happened during the afternoon. I could remember events up till meeting friends for lunch at 12 noon, then events from 5 pm. My daughter stated that I "was not myself" and repeated same questions/phrases since I returned home at 4:30 pm,

    I do not h...

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  • B12 and neurology
    Santosh V Kondekar

    B12 deficiency has always been a puzzle in pediatric population. Theoretically B12 deficiency is claimed to not occur in children due to reduced need of children and it takes years to develop cobalamine deficiency in children from malnutrition. Although most B12 deficient infants are failing to thrive, the aetiology for B12 deficiency is probably intrauterine and may be maternal B12 deficiency in addition, which explain...

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  • Rosai Dorfman Disease with thyroid gland involvement
    Dr Bidyut Kumar Das

    RDD is a rare histiocytic proliferative disorder of unknown etiology, commonly presents with painless massive lymphadenopathy and multiple extra nodal manifestations. Here we present a 13-yr old girl who presented with irregular low-grade fever with malaise, anorexia and nausea for last six months followed by five painless soft tissue swellings over the scalp, 4X3cm in diameter without bony involvement and multiple bilater...

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  • Long-haul air travel motion sickness and cerebellar oedema.
    mohammed naim

    The evidence presented by authors (Brian Hurwitz,and Joshua Richardson) is informative. However, it may be added further that Long-haul air travel has been well known to give rise to high altitude motion sickness, cerebellar edema and speech and orientation problems[1]. The young 14-year-old fellow and his father, since, showed no investigative findings confirmatory of viral disease. So it could be that they were more sus...

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  • Caption Marks on MRI images.
    Mohammed Naim
    Sir,caption marks which appear missed on MRI images in this case are important for learning of the new and the practicing generations of the pathologists besides of the imaging diagnosticians, and clinicians. For the pathologists MRI images give cut surface views in vivo helpful in final diagnosis on biopsy or autopsy where ever required. Image markings hence may be promoted by reviewers and editors.

    Conflict of Interest:

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  • Massive cerebellar infarctions; where are standing and what are we expecting?
    Osama SM Amin

    We are thankful to Epstein and Naqvi for reporting this case and reminding us of its lesson. However, I would like to address the following:

    The cerebellum is supplied by three arteries; posterior inferior cerebellar arteries (PICA), anterior inferior cerebellar artery AICA) which is usually a single artery, and superior cerebellar arteries (SCA). These vessels and their branches anastomose with each other to f...

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  • Catatonia in recent days
    Osama Hammer

    Catatonia is not a diagnosis. Rather, catatonia is a descriptive term for a presentation observed in a wide variety of disorders. Catatonia continues to be recognised in the UK by about 1/3 of psychiatrists surveyed in South West England and Wales. The understanding of the condition may differ. This implies that under diagnosis may lead to suboptimal treatment and fatalities as the differential diagnosis of catatonia in...

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