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You note the shown skin disorder during a general medical evaluation. You explain to the patient they are at risk for the development of: A)...

Melanosis coli, also pseudomelanosis coli, is a disorder of pigmentation of the wall of the colon, often identified at the time of colonosco...

A 55-year-old male diver begins complaining of back pain and urinary retention 1 h after a dive. What is the MOST likely diagnosis? (A) Baro...

A 72-year-old man who was overweight and had a history of hypertension and heavy smoking presented with a swollen neck. He had no dysphagia....

A 4-year-old preschooler presents with the skin lesions shown here. The area affected is just below the chin on the child's right side. ...