Spot Diagnosis

A 3-year-old boy presented with fever, vomiting, and these skin lesions. He was found to have bacteremia with Neisseria meningitidis. What is the diagnosis?

An 81-year-old woman presented with a 1-week history of vomiting. What is the diagnosis?

An 8-year-old girl with atopic dermatitis presented with a 3-day history of diffuse eruption of pruritic, umbilicated, erythematous vesicles with erosion and crusting on the flexor surfaces of the legs and arms. What is the diagnosis?

A 56-year-old man with a history of Roux-en-Y gastric bypass presented with abdominal pain, nausea, and bilious emesis. What is the diagnosis?

A 71-year-old man with cirrhosis presented to the ED with severe diffuse pruritus 3 months after being treated with oral and topical glucocorticoids for an erythematous, scaly rash. What is the most likely diagnosis?

A 57-year-old man presented to the emergency department with peripheral edema. What diagnosis does his chest X-ray suggest?

A healthy 15-year-old boy presented to the dermatology clinic with a well-demarcated tan-colored patch covered with coarse dark hairs, spanning his upper chest and extending onto the right shoulder and back. What is the most likely diagnosis?

What is the diagnosis in this 70-year-old woman with abdominal pain and marked abdominal distention ?

A healthy 66-year-old nonsmoking woman presented with recurrent pain and bruising in her right middle finger. She denied trauma or exposure to cold, and had normal complete blood count and coagulation studies. What is the diagnosis?

A 67-year-old man was admitted to the emergency department with a 10-day history of pain in the left side of the chest that had begun after an episode of severe coughing. He also noted swelling on the lower left side of the chest.