Chimney Sweeper cancer is the other name for
**Core Concept**
Chimney Sweeper cancer, also known as Erythema multiforme (EM), is a skin condition characterized by the sudden onset of target-shaped lesions. It is an acute, self-limiting condition often triggered by infections or medications.
**Why the Correct Answer is Right**
Erythema multiforme is a hypersensitivity reaction involving the immune system. The exact pathogenesis is unclear, but it is believed to result from a cell-mediated immune response to an antigen, leading to the activation of T-cells and the release of various cytokines. This results in the characteristic skin lesions, which can be triggered by viral infections such as herpes simplex virus (HSV), mycoplasma pneumoniae, or medications like penicillin or sulfa drugs.
**Why Each Wrong Option is Incorrect**
**Option A:**
This option may be trying to confuse the student with another skin condition, but it is not correct.
**Option B:**
This option is incorrect as it refers to a different condition altogether.
**Option D:**
This option might seem plausible but is actually a different condition with a distinct pathogenesis.
**Clinical Pearl / High-Yield Fact**
It's essential for clinicians to recognize the characteristic target-shaped lesions of Erythema multiforme and consider a trigger such as HSV or a recent medication change in the patient's history.
**Correct Answer:** C.