It's still early days in this latest earnings season, but it seems we can already tag one winner in the healthcare sector -- take a bow, UnitedHealth Group (NYSE: UNH).

As the season lurched into action, the sprawling healthcare insurer and services provider published its first-quarter results. These not only showed very encouraging growth dynamics in key fundamentals, they topped analyst expectations. Read on for a digest on UnitedHealth's healthy quarter.

You know you're dealing with a large and important company when you see a quarterly revenue figure that hovers just under $100 billion (yes, that's billion with a "b"). UnitedHealth's Q1 top line was $99.8 billion, which was a robust 9% higher on a year-over-year basis. It also accounts for a concentrated cyberattack on the company. Factoring out that incident results in an adjusted revenue figure of just over $100 billion.

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Source Fool.com