Genetic variant association of PTPN22, CTLA4, IL2RA, as well as HLA frequencies in susceptibility to alopecia areata.

Alopecia areata (AA) is characterized by a genetically complex inheritance. HLA frequencies, as well as the single nucleotide polymorphism (SNP) in PTPN22, CTLA4, and IL2RA genes, have been described to be associated with AA susceptibility. So far, no independent replication of these studies has been reported, and no data exist on a possible association between AA disease and these SNPs or influence of HLA frequencies in Iranian population.

Primary hydatid cyst of the right maxillary sinus: a case report.

Introduction: A hydatid cyst of the head and neck is a very rare condition, even in areas where Echinococcus infestation is endemic.

Case Report: We report a rare case of primary hydatid cyst of the right maxillary sinus in a 40-year-old man. The initial diagnosis of the presence of a cystic mass was the result of physical examination and computed tomography (CT) scan.

Supernumerary nostril together with esophageal atresia, imperforate anus and patent ductus arteriosus: a case report and review of the literature.

Supernumerary nostril is an extremely rare congenital entity which results from aberrant embryological development. The review of the literature reveals that only 30 cases of supernumerary nostril have been reported. We report a rare case of supernumerary nostril in association with esophageal atresia, imperforate anus, and patent ductus arteriosus.

The contribution of respiratory viruses to severe exacerbations of asthma in adults.

Viral infections are known to be associated with severe exacerbations of asthma in children. In contrast, there is limited data that viral infections evoke acute episodes of asthma that require emergency care in adults. To determine the role of viral infections in exacerbations of asthma in adults, we examined 33 patients who presented to the emergency room with 35 exacerbations of asthma between September 1990 and March 1991 for the presence of a viral infection.

Computerized data base of teaching conference cases.

Conferences consisting of case presentation with discussion are a major tool in radiology resident teaching. We used a computerized data base to study the case mix at our teaching conference. At daily conferences from July 1984 to March 1985 each case was recorded as to patient name, identification number, date, type of conference, case presented, modality used, organ study, and diagnosis.