The gastrointestinal tract is home to microorganisms that exist in close relation with host cells. The microbes in the gut are estimated to comprise 1000 to 1200 bacterial species and at least 100 trillion...
A healthy 5-month-old girl presented with a vascular plaque over the back that had been noted a few weeks after birth. The plaque had begun as an erythematous patch that had grown fairly rapidly over the...
A 22-year-old man presented to the emergency department with a sore throat. His pain began 12 hours earlier on the left side and subsequently progressed to the right side.
A 23-year-old military pilot presented to an aviation clinic for his annual flight physical examination. At the start of the examination, the patient drew the flight surgeon’s attention to a lump on the...
A 14-year-old healthy boy presented to our clinic with 1-month midline swelling of the lower neck and 1-week of cervical neck pain, dysphagia, pharyngitis, fever, and difficulty speaking. He had no...
A 33-year-old man presented to our emergency department after a few hours of nausea, vomiting, and diarrhea associated with left lower quadrant abdominal discomfort.
This article is part of a series describing and differentiating dermatologic lumps and bumps. In part 10, facial sebaceous hyperplasia and seborrheic keratosis are described.
A 38-year-old man presents with several days of ongoing severe abdominal pain in his upper abdomen that radiates to his back. He describes the pain as “boring and unrelenting” and is not crampy or colicky.
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A 66-year-old man was referred to the clinic for evaluation of cough, fevers, and rigors that had progressed over 10 days. His sputum was purulent but without hemoptysis.
A 49-year-old health care worker who emigrated from India 20 years ago presented to the optometry clinic for a routine eye evaluation. His corrected visual acuity was 20/20.
An 11-year-old girl with fever, fatigue, cough, rhinorrhea, and altered mental status was brought to our quaternary care institution by her mother from an outside hospital.
