Menghini’s needle is used for?
**Core Concept**
Menghini's needle is a type of biopsy needle used for liver biopsy. It is designed to minimize bleeding complications by using a thin, hollow needle to aspirate liver tissue and a larger outer cannula to provide support and reduce tissue trauma.
**Why the Correct Answer is Right**
Menghini's needle is specifically designed for liver biopsy, taking advantage of the liver's relatively firm texture to minimize bleeding risk. The needle's design allows for the aspiration of liver tissue while minimizing damage to surrounding structures. This is particularly useful in the context of liver disease, where accurate tissue diagnosis is crucial for guiding treatment decisions.
**Why Each Wrong Option is Incorrect**
**Option A:** Menghini's needle is not typically used for bone marrow biopsy, which requires a different type of needle with a larger inner diameter to accommodate the collection of marrow tissue.
**Option B:** Menghini's needle is not used for abdominal paracentesis, which involves the aspiration of fluid from the peritoneal cavity, rather than the collection of tissue samples.
**Option C:** Menghini's needle is not used for thoracentesis, which involves the aspiration of fluid from the pleural space, rather than the collection of tissue samples from the liver.
**Clinical Pearl / High-Yield Fact**
When performing a liver biopsy using Menghini's needle, it is essential to take multiple samples to ensure accurate diagnosis, as liver disease can be patchy and heterogeneous.
**Correct Answer: C. Liver biopsy. Menghini's needle is used for liver biopsy.**