The predominant features of Harlequin syndrome are unilateral facial flushing and sweating. Harlequin syndrome has been reported in different clinical conditions including brain stem infarction, superior mediastinal neurinoma, and internal jugular vein catheterization.1,2 Idiopathic and iatrogenic cases have been reported. The clinical features of Horner syndrome are ptosis, miosis, enophthalmo...

Harlequin ichthyosis is a rare and the most severe form of congenital ichthyosis. Although prenatal diagnosis isdifficult for this disorder, recently, this obstacle has markedly improved with the use of DNA-based prenataldiagnosis. Here in, we presented a neonate with harlequin ichthyosis born by assisted reproductive technology(ART). In this case, the diagnosis of harlequin ichthyosis was not ...

Harlequin ichthyosis is one of the most severe congenital skin cornification disorders with an incidence rate of about 1 in 300000 births and characteristic clinical features. We report two cases of harlequin ichthyosis (HI) or harlequin fetus (HF), which were products of consanguineous union. Clinical examination showed typical features of harlequin ichthyosis, with the presence of plaques wit...

Harlequin bug, Murgantia histrionica (Hahn) (Hemiptera: Pentatomidae), is a piercing-sucking pest of cole crops, causing cosmetic damage in low populations, while heavy pest pressure can kill plants or entire fields. Field studies were conducted to evaluate a trap crop for control of harlequin bug in collard. Field-cage choice tests found that potential trap crop plant species, mustard (Brassic...

The relationship between Harlequin Duck Histrionicus histrionicus distribution and stonefly (Plecoptera) nymph availability in the Maligne Valley watershed, Jasper National Park, Canada, was investigated from 1999 to 2000. Invertebrate sampling and duck counts were concentrated in the Maligne Lake Outlet (MLO), Middle Maligne River and Lower Maligne River. Harlequin Ducks were more likely to us...

Little is known about baseline concentrations of adrenal hormones and hormonal responses to stress in sea ducks, although significant population declines documented in several species suggest that sea ducks are exposed to increased levels of environmental stress. Such declines have been observed in geographically distinct harlequin duck populations. We performed an adrenocorticotropic hormone (...

Harlequin bug, Murgantia histrionica (Hahn), is a pest of cole crops in the USA. Laboratory toxicity assays revealed that the neonicotinoid insecticides imidacloprid, thiamethoxam, dinotefuran, and clothianidin are toxic to harlequin bug nymphs; LC50 = 0.57, 0.52, 0.39, and 0.39 ppm, respectively. Field experiments were conducted to evaluate the efficacy of these insecticides over time when app...

Harlequin syndrome is a rare autonomic disorder characterized by unilateral facial flushing and sweating with contralateral anhidrosis induced by exercise, heat, and emotion. It is usually idiopathic but could be the first manifestation of several serious underlying medical conditions. Medical or surgical treatments are not required for idiopathic Harlequin syndrome, but social and psychologica...

RATIONALE Harlequin syndrome is an extremely rare benign condition characterized by unilateral facial flushing and sweating. PATIENT CONCERN An 11-year-old boy presented with complaint of a right neck mass of 1-month duration. DIAGNOSIS The preoperative diagnosis was neurogenic tumor of vagus nerve or sympathetic nerve. INTERVENTIONS We performed right neck mass removal under general anes...

Harlequin syndrome is a rare neurological condition that results in unilateral facial flushing and sweating. Although the syndrome is generally a benign condition with complete resolution if appropriate treatment is initiated, unilateral facial flushing can be a sign of several serious conditions and should be thoroughly investigated. Sudden onset of facial flushing related to harlequin syndrom...