RESUMO
Lymphocoele of the thoracic duct, alternatively referred to as thoracic duct cyst, is an uncommon abnormality that can present occasionally as a left supraclavicular fossa mass. Recognition of the origin of such a neck mass on imaging is crucial to avert unnecessary intervention. A case of such a mass is presented with discussion of the fascinating variable anatomy of the thoracic duct.
Assuntos
Linfocele/diagnóstico , Cisto Mediastínico/diagnóstico , Ducto Torácico , Feminino , Humanos , Linfocele/complicações , Cisto Mediastínico/complicações , Pessoa de Meia-Idade , Pescoço , Tomografia Computadorizada por Raios XRESUMO
Calcific tendinitis of the longus colli muscle is a retropharyngeal inflammatory process of the named prevertebral muscle that can present acutely with debilitating symptoms. The cross-sectional imaging appearances of this rare condition, although rather specific, can be somewhat misleading. This is, in part, due to a lack of familiarity with the normal anatomy and pathology of the prevertebral space, as well as the variation in the imaging appearances that can be found. Definitive radiological diagnosis is often paramount to avoid unnecessary and potentially dangerous intervention. Three cases of acute calcific tendinitis of the longus colli muscle are presented, with the salient anatomy and variation in CT appearances described.
Assuntos
Calcinose/diagnóstico por imagem , Músculos do Pescoço/diagnóstico por imagem , Cervicalgia/diagnóstico por imagem , Tendinopatia/diagnóstico por imagem , Doença Aguda , Adulto , Idoso , Calcinose/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Músculos do Pescoço/anatomia & histologia , Cervicalgia/patologia , Tendinopatia/patologia , Tomografia Computadorizada por Raios XRESUMO
Requests for imaging of patients complaining of deafness and other symptoms related to the petrous bone are becoming increasingly common. Although much of this work is related to the exclusion of vestibular schwannomas by MRI, high-resolution CT is available in most departments and is necessary for the evaluation of many conditions of the middle ear and bony labyrinth. In this pictorial review, some of the more unusual conditions that may be encountered in the middle and inner ear are presented, which might not be overly familiar to non-otological radiologists, illustrating the roles of CT and MRI.
Assuntos
Otopatias/diagnóstico , Orelha Interna/patologia , Orelha Média/patologia , Otopatias/diagnóstico por imagem , Orelha Interna/diagnóstico por imagem , Orelha Média/diagnóstico por imagem , Granuloma de Corpo Estranho/diagnóstico por imagem , Humanos , Imageamento por Ressonância Magnética , Tomografia Computadorizada por Raios XRESUMO
The spectrum of pathology affecting the central nervous system (CNS) in patients suffering from acquired immunodeficiency syndrome (AIDS) is broad and comprises predominantly opportunistic infections and neoplasms. It is estimated that approximately one-third of all patients with AIDS develop neurological complications. The organisms responsible for AIDS are human retroviruses: primarily the human immunodeficiency virus type 1 (HIV). In this review we shall focus on the neurological complications of HIV and AIDS which are applicable to the more frequently occurring intracranial infective organisms. Attention will be paid specifically to those CNS manifestations occurring in the adult HIV and AIDS population as infection in the paediatric HIV and AIDS group, although bearing some similarities, demonstrates some important differences.