Ectopic testis is found in all location except -a) Lumbarb) Perinealc) Infra abdominald) Inguinal

**Core Concept**
Ectopic testis is a congenital anomaly where the testis fails to descend into the scrotum and resides in an abnormal location along the path of descent. The path of testicular descent involves the inguinal canal and the potential locations of ectopic testes are along this path.

**Why the Correct Answer is Right**
The correct answer is **c) Infra abdominal**. This is because the testis typically descends through the inguinal canal and into the scrotum, and an ectopic testis will often be found in the inguinal canal or along the path of descent, but not below the abdominal cavity. Infra-abdominal locations are not typical for ectopic testes as they usually occur above the pubic symphysis.

**Why Each Wrong Option is Incorrect**
* **Option A:** Lumbar - Ectopic testes can indeed be found in the lumbar region, which is along the path of testicular descent.
* **Option B:** Perineal - While rare, ectopic testes can be found in the perineal region, especially if they have undergone a complex migration pattern.
* **Option D:** Inguinal - Ectopic testes often reside in the inguinal canal or along the path of descent, making inguinal a possible location.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that ectopic testes are a congenital anomaly, and a thorough medical history and physical examination are crucial for identifying these cases, especially in infants and children.

**Correct Answer:** D. Inguinal