Joana Damásio

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BACKGROUND Since the mid-19th century, epistaxis and migraine have been occasionally associated with each other. Nevertheless, we found only two cases in the contemporary medical literature. Sporadic hemiplegic migraine is a subtype of migraine with reversible motor deficits, without similar episodes in relatives. CASE We describe a 47-year-old male with(More)
IMPORTANCE Progressive encephalomyelitis with rigidity and myoclonus is characterized by rigidity, painful muscle spasms, hyperekplexia, and brainstem signs. Recently, glycine receptor alpha 1 antibodies have been described in adult patients with progressive encephalomyelitis with rigidity and myoclonus. We describe a pediatric case. OBSERVATIONS A(More)
BACKGROUND Alpha-synuclein (α-Syn) is particularly abundant in the vermiform appendix, which makes this structure an anatomical candidate for the initiation of Parkinson's disease (PD) pathology. We hypothesized that history of appendectomy might affect PD clinical onset. METHODS A total of 295 PD patients enrolled in a comprehensive observational study(More)
INTRODUCTION A possible association between olfactory dysfunction and Parkinson's disease (PD) severity has been a topic of contention for the past 40 years. Conflicting reports may be partially explained by procedural differences in olfactory assessment and motor symptom evaluation. METHODS One hundred and sixty-six nondemented PD patients performed the(More)
Frontotemporal lobar degeneration (FTLD) refers to a clinically, pathologically, and genetically heterogeneous group of dementias that arises from the degeneration of the frontal and temporal lobes. Mutations in the progranulin gene (GRN) are a major cause of FTLD with TDP-43 inclusions. Herein, we describe the clinical, neuropathological, and genetic(More)
Metronidazole is a commonly prescribed antiprotozoal and antibacterial agent. Common adverse effects include nausea, headache and metallic taste [1]. There are reports of nervous system toxicity, with cerebellar syndrome and neuropathy most frequently described and encephalopathy and seizures less commonly [2]. We describe a woman who developed sequential(More)
BACKGROUND CACNA1A gene disorders present a variable familial phenotype of ataxia, migraine with aura, and/or hemiplegic migraine. Prevalence data for these conditions are scarce. OBJECTIVE The aim of this study is to report a minimal prevalence estimate for familial hemiplegic migraine with cerebellar ataxia and spinocerebellar ataxia type 6 in Portugal.(More)
OBJECTIVE To document and discuss the broad phenotypic variability in a Portuguese family with cerebellar ataxia, hemiplegic migraine, and related syndromes caused by missense mutation c.1748 (p.R583Q) in the CACNA1A gene. DESIGN Observational 12-year follow-up study. SETTING Community and hospital care. PATIENTS Sixteen patients in a 4-generation(More)
Progressive multifocal leukoencephalopathy (PML) is a rare opportunistic infection caused by the reactivation of JC virus and occurs in patients with severe primary or secondary immunosuppression. Recently, PML is becoming relevant in autoimmune disorders, particularly in patients treated with biologic agents. However, systemic lupus erythematosus (SLE)(More)