Treatment of uncomplicated hydatid cyst in lung is
**Core Concept**
Treatment of uncomplicated hydatid cysts in the lung aims to alleviate symptoms, prevent complications, and avoid recurrence. The goal is to use a method that is minimally invasive, effective, and has a low risk of adverse effects.
**Why the Correct Answer is Right**
The treatment of choice for uncomplicated hydatid cysts in the lung is PAIR (Puncture, Aspiration, Injection, and Re-aspiration). This method involves puncturing the cyst under imaging guidance, aspirating the contents, injecting a scolicidal agent (usually hypertonic saline or ethanol), and then re-aspirating the cyst. This approach is preferred because it is less invasive than surgery and can be performed on an outpatient basis.
**Why Each Wrong Option is Incorrect**
**Option A:** Surgical resection is generally reserved for complicated or ruptured cysts, or when PAIR is unsuccessful. It is a more invasive procedure with a higher risk of complications.
**Option B:** Medical treatment with albendazole or mebendazole may be used as an adjunct to PAIR or in patients who are not candidates for surgery. However, it is not a standalone treatment for uncomplicated hydatid cysts.
**Option C:** Aspiration alone without injection of a scolicidal agent may lead to re-accumulation of the cyst contents and recurrence.
**Clinical Pearl / High-Yield Fact**
Remember that PAIR is a preferred treatment for uncomplicated hydatid cysts in the lung because it is minimally invasive and has a low risk of complications, making it a good option for patients who are not candidates for surgery.
**Correct Answer: C. PAIR (Puncture, Aspiration, Injection, and Re-aspiration)**