CCI Echocardiography Practice Test

Rhabdomyomas are tumors that are primarily composed of striated muscle cells, and they are known for their benign nature and slow growth. This characteristic is crucial for several reasons. First, rhabdomyomas typically do not metastasize or invade surrounding tissues aggressively, which is a hallmark of malignant tumors. Their benign behavior often leads to a prognosis that is significantly better compared to malignant tumors.

These tumors are most frequently found in children, particularly in association with congenital conditions such as tuberous sclerosis, which emphasizes their benign and slow-growing nature. Rhabdomyomas may eventually resolve spontaneously or remain asymptomatic over a long period, which aligns with the idea of benign tumors that do not require aggressive treatment unless they cause specific complications due to their location.

The other options describe characteristics that do not align with the established understanding of rhabdomyomas, emphasizing how the benign and slow-growing nature is a defining feature of these tumors.