Faget sign is
**Core Concept**
Faget sign is a clinical manifestation associated with the diagnosis of typhoid fever. It is characterized by a specific type of skin lesion that appears in patients with typhoid fever, indicating a severe systemic infection.
**Why the Correct Answer is Right**
The Faget sign is a characteristic skin lesion that appears as a blister or a bulla on the back, chest, or abdomen. It is thought to be a result of the toxins produced by the bacterium Salmonella Typhi, which causes typhoid fever. The toxin causes vasculitis and inflammation of the skin, leading to the formation of these skin lesions. The Faget sign is a classic clinical finding in patients with typhoid fever, particularly in the second week of illness.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not describe the Faget sign accurately. The Faget sign is a specific type of skin lesion, not a general symptom of typhoid fever.
**Option B:** This option is incorrect because it describes a different clinical manifestation, not the Faget sign. The Faget sign is a characteristic skin lesion, not a rash or a fever.
**Option C:** This option is incorrect because it is not a recognized clinical finding in typhoid fever. The Faget sign is a specific type of skin lesion, not a laboratory finding or a radiological feature.
**Clinical Pearl / High-Yield Fact**
The Faget sign is a classic clinical finding in patients with typhoid fever, particularly in the second week of illness. It is a key diagnostic clue that should prompt further investigation, including blood cultures and imaging studies, to confirm the diagnosis.
**Correct Answer:** B. Maculae of Faget.