Tear drop bladder is seen in –
**Core Concept**
The tear drop bladder, also known as a "teardrop" or "drop-shaped" bladder, is a radiographic finding associated with a specific clinical condition. It refers to the appearance of the bladder on imaging studies, where the bladder is shaped like a teardrop due to the loss of its normal dome shape.
**Why the Correct Answer is Right**
The tear drop bladder is typically seen in patients with spinal cord injuries, particularly those with high-level injuries above the level of the third lumbar vertebra (L3). The injury disrupts the normal innervation of the bladder, leading to an inability to fully relax the bladder muscles, resulting in a contracted, teardrop-shaped bladder. This is due to the loss of parasympathetic tone, which normally helps to relax the bladder muscles and increase bladder capacity.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the tear drop bladder is not typically associated with conditions that affect the bladder's musculature directly, such as bladder outlet obstruction or neurogenic bladder.
**Option B:** This option is incorrect because the tear drop bladder is not a normal variant of the bladder shape, but rather a pathologic finding associated with specific clinical conditions.
**Option C:** This option is incorrect because the tear drop bladder is not typically seen in patients with conditions that affect the bladder's innervation indirectly, such as diabetes mellitus.
**Clinical Pearl / High-Yield Fact**
In patients with spinal cord injuries, the presence of a tear drop bladder on imaging studies is a critical finding that may require the use of intermittent catheterization to manage urinary retention.
**Correct Answer:** C. Spinal cord injury above the level of L3.