A patient undergoing left mastectomy and immediate latissimus dorsi breast reconstruction under combined paravertebral block and general anaesthesia developed transient, well-demarcated, right-sided hemifacial erythema and sweating, and left-sided Horner syndrome postoperatively. This "harlequin" appearance occurs because of a normal or excessive vasodilatory, thermoregulatory response to heat ...

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Harlequin ichthyosis (HI) is a very rare severe form of autosomal recessive congenital ichthyosis, usually associated with stillbirth and early neonatal death. A newborn girl with HI is described. She presented in a critical condition with severe universalis hyperkeratosis, diffuse scales and deep erythematous fissures. She received preventive systemic antibiotics and hygienic nursing with skin...

Background: Harlequin color change is a benign, idiopathic, self-limiting disorder characterized by an appearance of skin divided into two distinctly colored areas. Its etiology unknown but thought to be caused immaturity hypothalamic regulation peripheral vascular tone. COVID-19 infection in neonates infrequent and rarely symptomatic, with only few cases described the literature. In isolation,...

The use of biological control agents to control pests is an alternative to pesticides and a tool to manage invasive alien species. However, biocontrol agents can themselves become invasive species under certain conditions. The harlequin ladybird (Harmonia axyridis) is a native Asian biocontrol agent that has become a successful invader. We reviewed articles containing "Harmonia axyridis" to gat...

In wild birds implanted intracoelomically with radio transmitters, a synthetic fabric collar placed around the base of a percutaneous antenna is believed to function as a barrier to contamination of the coelom. We examined 13 fabric collars recovered from percutaneous antennas of radio transmitters implanted intracoelomically in harlequin ducks (Histrionicus histrionicus) 12 months earlier. Bot...