system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 16-year-old girl is brought to the physician because of a 1-month history of fever, headaches, and profound fatigue. Her temperature is 38.2°C (100.8°F). Examination shows splenomegaly. Laboratory studies show:
Leukocyte count 13,000/mm3 (15% atypical lymphocytes)
Serum
Alanine aminotransferase (ALT) 60 U/L
Aspartate aminotransferase (AST) 40 U/L
Heterophile antibody assay negative
EBV viral capsid antigen (VCA) antibodies negative
HIV antibody negative
In an immunocompromised host, the causal organism of this patient's symptoms would most likely cause which of the following conditions?"
assistant
Linear ulcers near the lower esophageal sphincter