## **Core Concept**
The patient's presentation with lumps in the axilla and supraclavicular region, along with the histopathological examination (HPE) and flow cytometry results showing CD15 and CD30 positivity, suggests a diagnosis of **Hodgkin lymphoma**. The development of skin lesions after chemotherapy in this context points towards a side effect of a specific chemotherapeutic agent.

## **Why the Correct Answer is Right**
The patient has **Hodgkin lymphoma**, as indicated by CD15 and CD30 positivity. After chemotherapy, the patient develops skin lesions, which could be indicative of **chemotherapy-induced skin reactions**. Among the common chemotherapeutic agents used in Hodgkin lymphoma, **Bleomycin** is well-known for causing **skin toxicity**, including rash, erythema, and in severe cases, blistering or ulceration. This reaction is dose-dependent and can occur during or after treatment.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Without the specific drug names provided, we can't directly assess, but given the context, we'll evaluate based on common knowledge.
- **Option B:** Similarly, without specifics, but generally, not all chemotherapeutic agents cause skin lesions as a notable side effect.
- **Option C:** This option might represent another chemotherapeutic agent; however, it's less likely to be associated with skin toxicity compared to Bleomycin in the context of Hodgkin lymphoma treatment.
- **Option D:** This could represent yet another chemotherapeutic agent, but again, it's less commonly associated with the specific side effect of skin lesions compared to Bleomycin.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that **Bleomycin** is a chemotherapeutic agent used in the treatment of various cancers, including **Hodgkin lymphoma**. A significant and potentially dose-limiting side effect of Bleomycin is **pulmonary toxicity**, but it also causes **skin reactions**, which can range from mild to severe. This side effect profile makes monitoring patients on Bleomycin crucial.

## **Correct Answer:** . **Bleomycin**