Foix-Chavany-Marie syndrome in a 17-year-old female with congenital cytomegalovirus infection
Authors Conforti R, Capasso R, Capaldo G, Dato C, Saracino D, Di Iorio G, Melone MA
Received 21 May 2014
Accepted for publication 24 July 2014
Published 20 November 2014 Volume 2014:10 Pages 2249—2252
Checked for plagiarism Yes
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Peer reviewer comments 2
Editor who approved publication: Dr Roger Pinder
Renata Conforti,1 Raffaella Capasso,1 Guglielmo Capaldo,2 Clemente Dato,2 Dario Saracino,2 Giuseppe Di Iorio,2 Mariarosa A Melone2
1Neuroradiology Unit, 2Division of Neurology and Interuniversity Centre for Research in Neuroscience, Department of Clinical and Experimental Medicine and Surgery, Second University of Naples, Naples, Italy
Abstract: Foix-Chavany-Marie syndrome is characterized by bilateral facio-glosso-pharyngo-masticatory paralysis of voluntary movement due to bilateral anterior opercular lesions. We describe the case of a 17-year-old female affected by Foix-Chavany-Marie syndrome and congenital cytomegalovirus infection, evaluating the possible etiopathogenetic correlation between cerebral cortical dysplasia and intrauterine infections.
Keywords: Foix-Chavany-Marie syndrome, opercular syndrome, cytomegalovirus, cortical dysplasia, polymicrogyria
Foix-Chavany-Marie syndrome (FCMS), also known as opercular syndrome, is characterized by bilateral paralysis of the facio-glosso-pharyngo-masticatory muscles in voluntary movement due to bilateral anterior opercular lesions, with normal strength in involuntary actions (such as yawning or laughing).1,2 Functional or structural interruption of the connections between the cortical motor areas and the brainstem nuclei is responsible for the symptoms of FCMS. The symptoms arise from damage to the bilateral projections connecting the anterior insular opercula and the nuclei of cranial nerves V, VII, IX, X and XII.3 In children, FCMS is a rare occurrence, and three main clinical forms have been described:3 developmental or evolutionary (secondary to cortical Sylvian dysplasia and pachypolymicrogyria in children caused by prenatal vascular lesions and/or infections of the central nervous system);4 acute–subacute (usually secondary to herpes simplex or tubercular infection);3 and transitory, in children affected by Rolandic epilepsy (this form, benign and reversible, usually occurs during status epilepticus).1,5
A 17-year-old Caucasian female came under our observation with a history of full-term precipitous delivery. At birth, the Apgar score was 7 at minute 1 and 9 at minute 5, and she showed postnatal hepatosplenomegaly, jaundice, and a petechial rash on her face, limbs, and trunk. Motor development was delayed: she gained head control at 4 months, the ability to sit at 12 months, the ability to stand unassisted at 13 months, and learned to walk, albeit precariously, at 20 months. By this time, no verbal language had developed nor had she gained adequate voluntary control over chewing and tongue movements. When she was one year old, clinical examination showed bilateral sensorineural hearing loss and mild mental retardation. An auditory prosthesis was implanted, and logopedistic rehabilitation was suggested. Transfontanellar ultrasonography, made possible by persistent opening of the fontanelle over 12 months, showed mild dilatation of the ventricular system, more prominent in the left lateral ventricle than in the right, in association with bilateral parenchymal calcifications. A diagnosis of congenital cytomegalovirus (CMV) infection with intracranial calcifications was made. Clinical examination at admission to our institution when she was 17 years old showed myopathic facies with amimia, bilateral hyposthenia of the facial muscles, an elongated and partially protruded tongue, an ogival palate, and bilateral claw hands.
Neurologic examination showed a lack of speech with emission of inarticulate sounds and severe deafness. She was able to understand spoken language and communicate using international sign language. There was salivary incontinence due to facial muscle hyposthenia, tongue protrusion and lateral movements were impossible, chewing was inadequate, a bilateral eyelash sign was present, and automatic-voluntary dissociation was also recognized. Reflexes were normal, except for an indifferent plantar response bilaterally. The patient did not require assistance for activities of daily living, such as eating, bathing, and dressing. She was described by one of her parents as stubborn, immature for her age, and prone to aggressive outbursts when frustrated; she showed a narrow range of interests and preferred to spend her time alone. During neuropsychologic evaluation, the patient appeared wakeful and sufficiently compliant, although easily distracted and intolerant of errors. General cognitive abilities were found to be borderline impaired (intelligence quotient 77) when measured with Raven’s Progressive Matrices. There was also evidence of impaired visuomotor coordination and severe deficits in attention and executive function.
A computed tomography brain study revealed a few bilateral cortical convolutions and microscopic subcortical calcifications (Figure 1), especially in the frontal regions. Magnetic resonance imaging (MRI) of the brain revealed smooth opercula and frontal (both superior and middle frontal circumvolutions) cortex (Figure 2A–D) and a “cobblestone” appearance in both frontal cortices (Figure 3). The Sylvian cisterns appeared vertical and shallow bilaterally. An electroencephalogram performed when she was 21 years old showed diffusely deregulated cerebral electrical activity together with ubiquitous fast paroxysms, prevalent in the left temporal area (Figure 4).
Figure 1 Axial computed tomography study of the brain.
Figure 2 Axial Spin-Echo T2-weighted (A, C) and T1-weighted (B, D) magnetic resonance imaging study of the brain.
Figure 3 Spin-Echo T2-weighted sagittal projections on magnetic resonance imaging study of the brain.
Figure 4 Electroencephalogram showing diffusely deregulated cerebral electrical activity together with ubiquitous fast paroxysms, prevalent in the left temporal area.
The patient has been undergoing logopedistic rehabilitation since one year of age; she also underwent psychomotor rehabilitation from 3 years up to 10 years of age, with an improvement in communicative ability and emotional control. Her salivary incontinence was ameliorated by administration of an anticholinergic drug (trihexyphenidyl 2 mg twice daily).
The main complications of congenital CMV infection in children are microcephaly, mental retardation, motor disabilities, neurosensorial deafness, ocular symptoms related to chorioretinitis, and epilepsy. Congenital CMV infections are clinically silent in the newborn period in 10%–15% of patients, and the extent of neurologic damage is highly variable. CMV can infect the developing germinative matrix of the brain and can cause lissencephaly if the infection occurs in the earlier half of the second trimester of pregnancy; if the infection occurs later, there is polymicrogyria.6 Therefore, the timing of the intrauterine infection is important in determining both the type and severity of the resulting developmental abnormality, and infections occurring in an earlier period of gestation can result in more severe malformations of cortical development than those occurring in later periods.7,8 Polymicrogyria would be due to infection in the first and second phase of the third trimester of gestation, and fetal ischemia can produce cerebral microgyria.9 It has been suggested that perfusion deficits can be caused by the CMV itself, which is able to infect endothelial cells of the intracranial vessels.10 One group of authors11 has described four cases of microgyria associated with intrauterine CMV infection; according to the literature, microgyria is a common neuropathologic feature of the disease, resulting not from a neurogenetic or a histogenetic disorder, but from a deficit of cerebral perfusion. The mechanisms of the brain damage caused by CMV infection are still unclear, but might include brain ischemia, vasculitis, or more probably, a transitory lowering or absence of systemic perfusion.11 MRI is the gold standard for study of the brain in the event of neurologic complications of intrauterine CMV infection (neuronal migration abnormalities and cortical dysplasia). The main MRI findings are dilation of the ventricles and pericerebral spaces, oligo/pachygyria, delayed myelination, and periventricular cysts. Intracranial calcifications are common (accounting for more than 77% of the abnormalities in patients with congenital CMV), although non-specific.7 The calcifications may be small and periventricular, sometimes thicker and straight, and are usually located at the corticosubcortical interface as well as near the basal ganglia.12,13 Calcifications are best seen on brain computed tomography.
The diagnostic problem of congenital CMV infection arises because of late diagnosis, usually after the neonatal period (that is, after 3 months of life). Nevertheless, its neurologic complications may become evident only around months 6–9 of life, when the diagnosis is no longer possible. In our case, the topography of the lesions and their bilateral distribution correlated with symptoms, since perisylvian lesions are typically associated with pseudobulbar palsy. Finally, the lesion in the frontal cortex correlates with mental retardation.14
We thank Dr IM Conforti for the contribution offered to the clinical description by providing an extensive phoniatric evaluation of the patient.
The authors report no conflicts of interest in this work.
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