Introduction and objective: Cocaine abuse has been linked to pathology in multiple levels,
but especially relevant are the ones located in the head and neck area, since one of the …

A 64-year old woman presented to the emergency department with a 6-month history of right
lateral cervical pain and a 2-week history of erythema and swelling of her right hand and …

A 49-year-old man with a history of hypertension, hypercholesterolemia, polysubstance use,
recurrent methicillin-resistant Staphylococcus aureus skin infections, and chronic hepatitis C …

The accompanying 2 images relate to a 5-year-old female who presented in Khowst
Province, Afghanistan, for evaluation of a posterior right neck mass. A much smaller mass …

A36-year-old man with no remark-able medical history presented to the emergency
department with respiratory distress and altered mental status after several hours of intense …

A 67-year-old, otherwise healthy, male presents to a small, rural emergency department the
morning after falling (while intoxicated) and hurting his shoulder. He now complains of pain …

Tzanck smear, potassium hydroxide, and acid fast stains of specimens from the base of the
ulcer were negative as were cultures for viral, fungal, and mycobacterial pathogens. Biopsy …

A 49-year-old man with a history of hypertension, hypercholesterolemia, polysubstance use,
recurrent methicillin-resistant Staphylococcus aureus skin infections, and chronic hepatitis C …

A37-year-old woman presented with a 2 day history of rash on her legs and buttocks
bilaterally. The rash had a distinctive reticular pattern, located mostly on the anterior aspect …

Figure 1: Photographs of a 55-year-old man with a history of intravenous drug use, showing
(A) an ulcer on the left lower leg with granulation tissue, surrounded by depressed, sclerotic …