A microscopic feature of seminoma include all of the following except –
**Core Concept**
Seminoma is a type of germ cell tumor, typically arising in the testes, and is known for its distinctive microscopic features. The correct answer will exclude a characteristic not commonly associated with seminoma.
**Why the Correct Answer is Right**
Seminomas are composed of large, uniform cells with clear cytoplasm and a large, centrally located nucleus, often with a prominent nucleolus. They may also exhibit a characteristic "fried egg" appearance due to the presence of a large nucleus surrounded by a clear halo. However, one of the options listed is not typically associated with seminomas.
**Why Each Wrong Option is Incorrect**
**Option A:** While Reed-Sternberg cells are a hallmark of Hodgkin lymphoma, they are not typically associated with seminoma. Seminomas lack the characteristic "owl's eye" nuclei seen in Reed-Sternberg cells.
**Option B:** The presence of giant cells is not a characteristic feature of seminoma, which typically consists of uniform, large cells with clear cytoplasm.
**Option C:** The presence of a pseudorosette pattern is not typically associated with seminoma, although some germ cell tumors may exhibit this feature.
**Clinical Pearl / High-Yield Fact**
It's essential to recognize the microscopic features of seminoma to distinguish it from other testicular tumors, such as non-seminomatous germ cell tumors (NSGCTs), which may exhibit a range of different microscopic patterns.
**Correct Answer:** B.