Differential Diagnosis
- Single most likely diagnosis
- Food Allergy (Anaphylaxis): The patient's symptoms, including a diffuse rash, swollen lip and eyelids, and difficulty breathing, are consistent with an allergic reaction. The fact that the symptoms occurred after eating specific foods (curry and hush puppies) and lasted for an extended period suggests an immune-mediated response.
- Other Likely diagnoses
- Atopic Dermatitis (Eczema): Although less likely given the acute onset and association with specific food triggers, atopic dermatitis could be considered, especially if the patient has a history of eczema or other atopic diseases.
- Contact Dermatitis: This could be a possibility if the patient came into contact with an allergen or irritant in the food or its preparation, although the systemic nature of the symptoms (e.g., difficulty breathing) makes this less likely.
- Urticaria: This condition, characterized by itchy hives, could be a part of the patient's presentation, especially given the rash and swelling. However, the severity of symptoms, including difficulty breathing, points more towards anaphylaxis.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Anaphylactic Shock: A severe, life-threatening allergic reaction that requires immediate medical attention. The patient's difficulty breathing and systemic symptoms could indicate anaphylactic shock, making prompt diagnosis and treatment crucial.
- Angioedema: This condition, which can cause swelling of the face, lips, and airways, can be life-threatening if not treated promptly. It often occurs in conjunction with anaphylaxis or urticaria and can lead to airway obstruction.
- Rare diagnoses
- Mastocytosis: A rare condition characterized by an accumulation of mast cells in the body, which can lead to allergic-like symptoms, including rash, swelling, and difficulty breathing, upon exposure to triggers.
- Eosinophilic Gastroenteritis: Although primarily affecting the gastrointestinal tract, this rare condition could potentially cause systemic symptoms, including rash and respiratory issues, especially if there is a significant eosinophilic response to a food allergen.