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Papers by Firdaous Touarsa

SAGE open medical case reports, 2023

Journal of Neuroradiology

SAGE Open Medical Case Reports

Susac syndrome is a rare microangiopathy of indeterminate etiology, presumably autoimmune, charac... more Susac syndrome is a rare microangiopathy of indeterminate etiology, presumably autoimmune, characterized by a triad of encephalopathy, sensorineural hearing loss, and branch retinal artery occlusions occurring predominantly in women. The onset and progression patterns are multiple, mainly of three modes. Fulminant evolution is exceptional, rarely reported across literature. We report through this case a Susac syndrome in a young man in whom evolution was fatal. Magnetic resonance imaging is essential to raise the diagnosis and for follow-up, with almost pathognomonic findings, all the more useful as the clinical triad is usually incomplete and as the encephalopathy is the most limiting of the symptoms.

Journal of Neuroradiology

SAGE Open Medical Case Reports

The occipital bone is an uncommon location for meningoceles protrusion. This condition occurs gen... more The occipital bone is an uncommon location for meningoceles protrusion. This condition occurs generally after a severe traumatism or surgical procedure. However, in some rare cases, the herniation can happen spontaneously. Nontraumatic clival meningoceles present an extremely rare entity and correspond to a herniating pachymeningeal collection containing cerebrospinal fluid through a zone of fragility in the clivus. Clinical presentation ranges from simple headache or rhinorrhea to severe complications such as recurrent bacterial meningitis or nerve compression. Computed tomography provides an analysis of the bone and magnetic resonance imaging provides a superior contrast resolution, helping to distinguish among the various types of clival lesions. We report the case of a young woman with a long history of idiopathic intracranial hypertension, who presented with a worsening headache. Magnetic resonance imaging confirmed a clival meningocele without other complications and the patie...

SAGE Open Medical Case Reports

Arachnoid cysts are the most common benign cystic abnormalities formed due to congenital splittin... more Arachnoid cysts are the most common benign cystic abnormalities formed due to congenital splitting of the arachnoid layer. They comprise 1% of intracranial masses, and the orbital location is even more rarely reported in history especially in the pediatric population. They might be discovered as an asymptomatic finding on imaging performed for a concomitant condition or, in most reported cases, as a result of ophthalmic impairment. They can be isolated or associated with gliomas, neurofibromas, empty sella syndrome, and frontotemporal porencephalic cysts. Computed tomography scan shows a non-enhancing liquid cystic lesion, and magnetic resonance imaging remains the best assessment tool confirming the similarity of the fluid to cerebrospinal fluid and evaluating the optic nerves. Herein, we report the case of an incidental discovery of an intraorbital arachnoid cyst on magnetic resonance imaging in a 53-year-old woman with a history of epilepsy. No treatment was performed as the cyst...

BJR|case reports

Aceruloplasminemia is a rare autosomal recessive disorder of iron accumulation in the brain. It i... more Aceruloplasminemia is a rare autosomal recessive disorder of iron accumulation in the brain. It is one of the subtypes of Neurodegeneration with Brain Iron Accumulation (NBIA) and is characterized by the uniform involvement of all basal ganglia, thalami, dentate nuclei, and cortex. Aceruloplasminemia is the only known iron overload disorder in which brain and systemic iron overload are combined. Here, we present a 53-year-old female who had progressive cognitive disorders with motor deficits. Magnetic resonance imaging showed extensive and abundant iron deposited in the brain and in the liver.

Edorium Journal of Radiology

Mucormycosis is a destructive, potentially fatal, and opportunistic fungal infection caused by fi... more Mucormycosis is a destructive, potentially fatal, and opportunistic fungal infection caused by filamentous Mucorales which commonly affect immunocompromised hosts. This infection might take different forms such as gastrointestinal, pulmonary, cutaneous or even a disseminated form, yet the rhinocerebral localization is historically the primary presentation of the disease and most common type. It originates in the nasal mucosa owing to fungal inoculation, then it spreads through paranasal sinuses and orbits to the brain and its vessels especially the cavernous sinus, leading to thrombotic complications including arterial thrombosis. Herein, we present a case of a 35-year-old male with poorly controlled diabetes who presented with decompensated diabetes, in whom the clinical examination finds subtle signs of orbital cellulitis. The patient subsequently had worsening necrotizing orbital cellulitis which required surgical drainage of the left ethmoid along with large spectrum antibiotic ...

Journal d'imagerie diagnostique et interventionnelle

Journal d'imagerie diagnostique et interventionnelle, 2021

Journal of Neuroradiology, 2022

Journal of Clinical Images and Medical Case Reports, 2021

Connatal cyst also known as frontal horn cysts, are cystic areas adjacent to the superolateral ma... more Connatal cyst also known as frontal horn cysts, are cystic areas adjacent to the superolateral margins of the body and frontal horns of the lateral ventricles and are believed to represent a normal variant [1]. The other name is coarctation of the lateral ventricles or frontal horn cysts. Sometimes unilateral or bilateral, the incidence of this condition is between 0, 4 and 0, 9% [2]. Periventricular cysts are a common finding in neonatal cranial imaging. They are noted usually in antenatal period and typically disappear over the first year of the life [3]. The etiology has been debated varying from being a normal variant, to secondary to a viral infection, chromosomal anomaly, post-ischemic or hemorrhagic event [1,4]. They have been shown to regress on follow-up imaging when demonstrates in children under 2 months of age [3]. Our case demonstrates an exceptional situation of a persistent of the cyst in a 20-year-old -girl.