Spot Diagnosis

What is the most likely diagnosis for these two painless periumbilical masses in a 76-year-old man with type 2 diabetes mellitus treated with insulin ?

A 74-year-old woman presented to the emergency department with a 3-day history of lower abdominal pain, nausea, and vomiting. She had been unable to pass any stool for 1 week and reported having had small-caliber stool during the previous 6 months.

What is the diagnosis in this 43-year-old man long history of alcohol abuse ?

A 4-month-old girl presented with poor feeding and nonbilious emesis. At 1 month of age, she had been hospitalized briefly for emesis but was able to feed until 1 week before presentation. She appeared well, and her abdomen was soft but distended. What is the most likely 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?