Acute longus colli tendinitis and otolaryngology / Tendinite aguda do músculo longus colli e otorrinolaringologia

Abstract Introduction Acute longus colli tendinitis is caused by calcium hydroxyapatite deposition in the tendon of the longus colli muscle with subsequent inflammation. The calcifications are commonly located at the superior oblique portion at the level of the C1-C2 vertebrae. The typical clinical presentation consists of acute neck pain, odynophagia, and painful limitation of neck range of motion. Objectives We will describe this disease with three that cases presented to our institution and compare the findings on imaging studies. Methods We retrospectively reviewed the clinical data, radiological features, and laboratory reports of three patients diagnosed with acute longus colli tendinitis. Computed tomography and plain radiographs were reviewed and compared by a single radiologist. A contemporary review of the literature was conducted using PubMed (Medline), Embase, and Cochrane library databases. Results Computed tomography showed greater sensitivity for the detection of the pathognomonic calcification than plain radiographs and facilitated the exclusion of other more severe conditions by following a systematic interpretation composed of five key elements. Plain radiographs showed non-specific signs of prevertebral soft tissue swelling and a decreased cervical lordotic curve. However, no calcification was identified on plain radiographs. The literature review revealed 153 articles containing 372 cases. Surgical or invasive procedures were mentioned in 13.7% of publications and were performed in 28 patients. Conclusion Acute longus colli tendinitis can mimic the clinical presentation of more severe conditions that the otolaryngologist may be required to evaluate, such as infectious, traumatic, and neoplastic diseases. Knowledge of this entity, with its pathognomonic imaging findings, can prevent misdirected medical therapy and unnecessary invasive procedures.

Resumo Introdução A tendinite aguda do músculo longus colli é causada pela deposição de hidroxiapatita de cálcio no tendão do músculo longus colli com subsequente inflamação. As calcificações estão comumente localizadas na porção oblíqua superior ao nível das vértebras C1-C2. A apresentação clínica típica consiste em dor cervical aguda, odinofagia e limitação dolorosa da amplitude de movimento do pescoço. Objetivos Descreveremos essa doença por meio de três casos apresentados em nossa instituição e compararemos os achados em exames de imagem. Método Revisamos retrospectivamente os dados clínicos, as características radiológicas e os relatórios laboratoriais de três pacientes com diagnóstico de tendinite aguda do músculo longus colli. A tomografia computadorizada e as radiografias simples foram revisadas e comparadas por um único radiologista. Uma revisão contemporânea da literatura foi feita nos bancos de dados PubMed (Medline), Embase e Cochrane. Resultados A tomografia computadorizada apresentou maior sensibilidade para detecção da calcificação patognomônica do que a radiografia simples e facilitou a exclusão de outras condições mais graves, seguiu uma interpretação sistemática composta por cinco elementos-chave. As radiografias simples mostraram sinais inespecíficos de edema dos tecidos moles pré-vertebrais e diminuição da curva lordótica cervical. Entretanto, nenhuma calcificação foi identificada nas radiografias simples. A revisão da literatura produziu 153 artigos com 372 casos. Procedimentos cirúrgicos ou invasivos foram mencionados em 13,7% das publicações e feitos em 28 pacientes. Conclusão A tendinite aguda do músculo longus colli pode mimetizar a apresentação clínica de condições mais graves que necessitam da avaliação do otorrinolaringologista, como doenças infecciosas, traumáticas e neoplásicas. O conhecimento dessa entidade, com seus achados de imagem patognomônica, pode evitar uma terapia clínica mal direcionada e procedimentos invasivos desnecessários.

Acute longus colli tendinitis and otolaryngology.

INTRODUCTION: Acute longus colli tendinitis is caused by calcium hydroxyapatite deposition in the tendon of the longus colli muscle with subsequent inflammation. The calcifications are commonly located at the superior oblique portion at the level of the C1-C2 vertebrae. The typical clinical presentation consists of acute neck pain, odynophagia, and painful limitation of neck range of motion. OBJECTIVES: We will describe this disease with three that cases presented to our institution and compare the findings on imaging studies. METHODS: We retrospectively reviewed the clinical data, radiological features, and laboratory reports of three patients diagnosed with acute longus colli tendinitis. Computed tomography and plain radiographs were reviewed and compared by a single radiologist. A contemporary review of the literature was conducted using PubMed (Medline), Embase, and Cochrane library databases. RESULTS: Computed tomography showed greater sensitivity for the detection of the pathognomonic calcification than plain radiographs and facilitated the exclusion of other more severe conditions by following a systematic interpretation composed of five key elements. Plain radiographs showed non-specific signs of prevertebral soft tissue swelling and a decreased cervical lordotic curve. However, no calcification was identified on plain radiographs. The literature review revealed 153 articles containing 372 cases. Surgical or invasive procedures were mentioned in 13.7% of publications and were performed in 28 patients. CONCLUSION: Acute longus colli tendinitis can mimic the clinical presentation of more severe conditions that the otolaryngologist may be required to evaluate, such as infectious, traumatic, and neoplastic diseases. Knowledge of this entity, with its pathognomonic imaging findings, can prevent misdirected medical therapy and unnecessary invasive procedures.

CT definition of the surgical apex in the orbit.

The orbital apex is an undefined but well understood concept of Orbital Surgeons. We sought to determine the surgical apex area specifically where the volume ratio decreases significantly impacting on the optic nerve. A retrospective analysis using PACS program processing, measured the right retrobulbar space volume changes in 100 randomly selected cases without orbital pathology where CT was performed for non-ophthalmic indications. Volume of the retrobulbar space was measured between two recognizable landmarks. The first landmark being the point of exit of the optic nerve from the eye and the second landmark the optic nerve's point of exit from the orbit. The measured length between these two points was divided into five equal segments, V1-V5. The volumes of all 5 segments were compared and the most significant area of volume depletion was established. The mean numeric value of measured orbital volumes was compared. A ratio difference of V1/V2 was less than 2, V2/V3 was 2.32 (± 0.27), V3/4 was 3.24 (± 0.39), and V4/V5 was 5.67 (± 1.66). The most remarkable difference in ratio was between V4 and V5 (mean 5.67 ± 1.66 with p < .0001). The V3 segment (the posterior 3/5 of the retrobulbar space volume) is the location where decrease in orbital volume impacts, and measured ratios are statistically significant. We defined the surgical apex as the posterior 3/5 of the retro-bulbar orbital space. It is consequently the area of higher risk for optic nerve compression. This definition could be routinely utilized by ophthalmologists and neuroradiologists when evaluating masses affecting the orbit.

Severe meningoencephalitis due to late reactivation of Varicella-Zoster virus in an immunocompetent child.

Recurrent reactivation of latent Varicella-Zoster virus may cause various neurological complications including encephalitis, myelitis, stroke episodes, and meningitis. It occurs mainly in elderly or immunocompromised patients and is very rare in children. We report a 14-year girl who presented with meningoencephalitis due to reactivation of Varicella-Zoster virus 10 years after she had chickenpox and 4 years after she had zoster. Characteristic skin lesions of varicella were absent. Varicella-Zoster virus DNA was detected in cerebrospinal fluid and magnetic resonance imaging (MRI) findings were consistent with small vessel cerebral vasculitis. Treatment with acyclovir and high dose methylprednisolone resulted in near-complete neurological recovery. Although rare, Varicella-Zoster virus may reactivate to cause significant central nervous system disease even in immunocompetent children. Diagnosis depends on a high degree of suspicion because the typical rash may not associate the disease. Characteristic lesions on MRI and the presence of Varicella-Zoster virus DNA in cerebrospinal fluid are key findings for the correct diagnosis.

Late relapse of herpes simplex virus encephalitis in a child due to reactivation of latent virus: clinicopathological report and review.

A child suffered from herpes simplex virus encephalitis at the age of 6 months; a late relapse occurred 8.5 years after the initial episode, the longest latency period reported. Radiologic and autopsy findings suggest local reactivation of latent herpes simplex virus as the cause of relapse. All cases of late relapse of herpes simplex virus encephalitis in the last 15 years are reviewed, with emphasis on clinical characteristics and possible mechanisms.

[Congenital cervical spondylolisthesis].

Cervical spondylolysis with spondylolisthesis is a complex abnormality involving the posterior elements of the cervical vertebra, and anterolisthesis of the same vertebra. Cervical spondylolysis is defined as a corticated cleft between the superior and inferior articular facets of the articular "pillar", the cervical equivalent of the pars intraarticularis in the lumbar spine. The typical radiological features of this condition are as follows: 1. Spondylolysis (a break in the "pillar" on one or both sides) 2. Spina bifida of dysplastic vertebra 3. Affection of posterior intervertebral joints (abnormal inclination of the superior and inferior articular facets of the affected bones may present) Recognition of this congenital disorder and its differentiation from traumatic injury is extremely important in patients who have a history of recent cervical trauma.