Erythema nodosum (EN) is associated with many systemic diseases and infections. This case report provides an image of erythematous nodules, an overview of the various causes of EN, and the laboratory tests and imaging that can be done in the emergency department to narrow its broad differential diagnosis.
A 38-year-old male with no significant past medical history presented to the emergency department with pain and swelling on the left mandibular area and the right upper quadrant of the abdomen after a reported assault in which he was punched in the face and kicked in the right chest wall during a fight at a bar.
A 37-year-old right-handed male auto mechanic with a 40 pack-year smoking history presented to the emergency department with progressive digital pain, cyanosis and paresthesias to his right hand over the prior month.
A 19-year-old male presented to the emergency department after a fall while playing soccer. He attempted to head the ball but instead fell backwards, hitting his head and neck on the ground. He did not lose consciousness but developed immediate pain along the right side of his neck.
A 38 year old female with a history of a right foot drop after medial facetectomies (L4-L5, L5-S1) and micro-discectomy (L4-L5) eight weeks prior presented to the emergency department (ED) with two weeks of headache and neck pain.
This paper describes ultrasound findings typical of Zika-related congenital malformations that may be incidental findings or detected when examining exposed or concerned patients during routine POCUS testing.