Histopathology showing large cells with plant like apperance with perinuclear halo is seen in which type of renal cell carcinoma ? –
**Core Concept**
The question is testing the ability to identify a specific histopathological feature of a type of renal cell carcinoma (RCC) based on its characteristic cellular morphology. RCC is a type of kidney cancer that originates from the lining of the proximal convoluted tubule, a part of the nephron responsible for reabsorption of nutrients and ions.
**Why the Correct Answer is Right**
The description "large cells with plant-like appearance with perinuclear halo" is characteristic of **chromophobe renal cell carcinoma**. Chromophobe RCC cells have a distinctive appearance under the microscope, with large size, pale cytoplasm, and a perinuclear halo. This is due to the presence of perinuclear actin filaments, which give the cells a "plant-like" appearance. The perinuclear halo is a distinctive feature of chromophobe RCC and is often used to differentiate it from other types of RCC.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is likely attempting to describe clear cell RCC, which is the most common type of RCC. However, clear cell RCC typically has a different histological appearance, with cells that are clear or pale due to the accumulation of lipid droplets, rather than a plant-like appearance.
* **Option B:** This option is likely attempting to describe papillary RCC, which is characterized by a papillary or tubular growth pattern. However, papillary RCC typically has a different cellular morphology, with cells that are smaller and more uniform in size than chromophobe RCC.
* **Option C:** This option is likely attempting to describe collecting duct RCC, which is a rare and aggressive type of RCC. However, collecting duct RCC typically has a different histological appearance, with cells that are more pleomorphic and have a higher nuclear-to-cytoplasmic ratio than chromophobe RCC.
**Clinical Pearl / High-Yield Fact**
Chromophobe RCC is often associated with a better prognosis than other types of RCC, particularly when detected early. It is also more likely to occur in older adults and is more common in women than men.
**Correct Answer: C. Chromophobe RCC.**