In acute testicular torsion within 1-6 hours, intratesticular flow is ______ and testicular echogenicity and size are ______.

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The main idea is how Doppler ultrasound findings evolve in acute testicular torsion as time passes. In the very early window of 1–6 hours, the arterial supply to the testis can be acutely compromised, leading to absent intratesticular flow on color Doppler. Yet the parenchymal appearance hasn’t had time to develop edema or architectural changes, so the echogenicity and size often remain normal. This combination—no detectable flow with a structurally normal-looking testis—fits the early torsion pattern and underscores why urgent surgical evaluation is needed regardless of how normal the gland appears in size or texture. Increased flow would point away from torsion (more like inflammatory processes), and absent flow with abnormal size or echotexture would suggest progression to edema or infarction; normal flow with normal echogenicity would not reflect the acute vascular compromise seen in torsion.