The haemolytic uraemic syndrome (HUS) is characterized by the triad of thrombocytopenia, microangiopathic haemolytic anaemia and acute renal failure. HUS may be classified as either diarrhoeal-associated or non-diarrhoeal/atypical (aHUS). aHUS has recently been shown to be a disease of complement dysregulation, with 50% of cases involving the complement regulatory genes, factor H (CFH), membran...

Background. Cogan's syndrome is a rare clinical entity whose etiopathology is still unknown, and the treatment strategies are not clearly defined. Case. A 23-year-old male presented with symptoms of headache, peripheral facial palsy, persistent right hearing loss and bilateral papillitis. Workup excluded all infectious, granulomatous, neoplastic, and immune causes. The diagnosis of atypical Cog...

Hemolytic uremic syndrome (HUS) is defined by the triad of mechanical hemolytic anemia, thrombocytopenia and renal impairment. Atypical HUS (aHUS) defines non Shiga-toxin-HUS and even if some authors include secondary aHUS due to Streptococcus pneumoniae or other causes, aHUS designates a primary disease due to a disorder in complement alternative pathway regulation. Atypical HUS represents 5 -...

Ramsay Hunt syndrome (RHS) is the reactivation of herpes zoster in the geniculate ganglion and typically presents the triad of ipsilateral peripheral type facial paralysis, ear pain, and erythematous vesicles in the external auditory canal and auricle. However, some unusual variants may occur. Here we present a patient of atypical RHS with uncommonly extensive dermatomal involvement of cranial ...

Due to the genetic and clinical heterogeneity of Rett syndrome, patients with nonclassic phenotypes are classified as an atypical Rett syndrome, that is, preserved speech variant, early seizure variant, and congenital variant. Respectively, MECP2, CDKL5, and FOXG1 have been found to be the causative genes, but FOXG1 variants are the rarest and least studied. We performed mutational analyses for...

Atypical hemolytic uremic syndrome (aHUS) is a thrombotic microangiopathy (TMA) characterized by microangiopathic hemolytic anemia, thrombocytopenia, and acute renal failure. Most cases of aHUS are caused by uncontrolled complement activation due to genetic mutations in the alternative pathway of complement. More recently, mutations in the gene of coagulation system have also been identified in...

Introduction Atypical haemolytic uremic syndrome is a result of a spectrum of diseases. Disorders of complement regulation are the most important reasons in the aetiology. It is associated with defective regulation of the alternative complement pathway in over 50% of cases. Clinical abnormalities are related with the presence of thrombotic microangiopathy. Patients with atypical haemolytic urem...

 Introduction: Olanzapine (Zyprexa) has become one of the most commonly prescribed atypical antipsychotic drug in Iran, at least in part due to its low potential to cause extra-pyramidal side effects. Case: A 54-year-old man, who was a known case of schizophrenia from 10 years ago and within the recent years, was under periodic medical treatment by antipsychotic drugs. Conclusion: Neurologi...

BACKGROUND Hemolytic uremic syndrome is a common cause of acute kidney injury in children. In children, hemolytic uremic syndrome is most commonly associated with gastrointestinal infections caused by Shiga toxin-producing Escherichia coli or other enteric organisms. Although less common, atypical hemolytic uremic syndrome is triggered by multiple factors and portends a significantly worse prog...

BACKGROUND Werner's syndrome is a progeroid syndrome caused by mutations at the WRN helicase locus. Some features of this disorder are also present in laminopathies caused by mutant LMNA encoding nuclear lamin A/C. Because of this similarity, we sequenced LMNA in individuals with atypical Werner's syndrome (wild-type WRN). METHODS Of 129 index patients referred to our international registry f...