Differential Diagnosis for MCC Fever, Diarrhea, and 2 Sores in Throat
- Single Most Likely Diagnosis
- Mononucleosis (Infectious Mononucleosis): This condition, caused by the Epstein-Barr virus (EBV), is characterized by fever, sore throat, and fatigue. The presence of two sores in the throat could be indicative of tonsillitis, which often accompanies mononucleosis. Diarrhea can also occur due to the systemic nature of the infection.
- Other Likely Diagnoses
- Strep Throat: Caused by Group A beta-hemolytic streptococci, this infection presents with a severe sore throat, fever, and can be accompanied by gastrointestinal symptoms like diarrhea in some cases.
- Influenza: Although primarily a respiratory virus, influenza can cause a wide range of symptoms including fever, sore throat, and occasionally gastrointestinal symptoms like diarrhea.
- Herpangina: This viral infection, commonly caused by coxsackieviruses, leads to the development of small, painful blisters or sores at the back of the mouth, fever, and can be associated with gastrointestinal symptoms.
- Do Not Miss Diagnoses
- Diphtheria: A serious bacterial infection that can cause a sore throat, fever, and a distinctive membrane covering the tonsils and throat. It's less common in areas with high vaccination rates but can be deadly if not treated promptly.
- Lemierre's Syndrome: A rare but potentially life-threatening condition that starts with a sore throat and can progress to include fever, neck pain, and complications like thrombophlebitis of the internal jugular vein. Diarrhea might not be a primary symptom but could occur due to systemic illness.
- Rare Diagnoses
- Tularemia: A rare infectious disease caused by Francisella tularensis, which can present with a variety of symptoms including fever, sore throat, and gastrointestinal symptoms depending on the route of infection.
- Yersiniosis: An infection caused by Yersinia enterocolitica, which can lead to fever, diarrhea, and occasionally pharyngitis, although this combination of symptoms is less common.