LAUSR

INTRODUCTION Crusted scabies, also referred to as Norwegian scabies, is caused by an infestationwith the Sarcoptes scabiei mite. Unlike classic scabies, in which a human host may be infected with 10 to 15 mites, an aberrant host response in crusted scabies leads to colonization with millions of mites. This condition is most often observed in patients with decreased sensory function and those who are immunocompromised, such as the elderly and those with underlying HIV, human T-lymphotropic virus 1 infection, and malignancy. Clinically, patients present with generalized thick, hyperkeratotic, psoriasiform, or eczematous-like plaques, most notable on acral surfaces. Pruritus may be absent. Systemically, generalized lymphadenopathy, peripheral eosinophilia, elevated immunoglobulin E levels, sleep disturbances, and secondary superinfections with Staphylococcus aureus and Streptococcus pyogenes are reported. Here, we present a rare case of untreated crusted scabies triggering autonomic dysreflexia in a patient with underlying spinal cord injury.