Follow-up of a left testicular lesion. RIGHT TESTIS: The right testis is normal in morphology and echogenicity and size, measuring 4.0 x 3.2 x 2.1 without a focal lesion. Color and spectral Doppler ultrasound evaluation demonstrates normal blood flow.LEFT TESTIS: The left testis is normal in morphology, echogenicity and size, measuring 3.8 x 2.9 x 2.2 cm. The complex partially cystic/solid lesion anterior to the inferior mediastinum measures 0.6 x 0.4 x 0.5 cm, unchanged. No significant vascularity.There is a 0.6 x 0.5 x 0.4 cm well circumscribed mixed cystic and solid lesion inseparable from the left inferior mediastinum. This lesion demonstrates no appreciable vascularity. This lesion has not changed in its appearance when compared to 7/14/2014.RIGHT EPIDIDYMIS: No significant abnormalities noted.LEFT EPIDIDYMIS: No significant abnormalities noted.OTHER: No significant abnormalities noted.
Stable well-circumscribed mixed cystic and solid subcentimeter lesion without appreciable vascularity. Given this lesion's temporal stability from the prior study and a report from 2002 mentioning a cystic focus arising from the same the left inferior mediastinum location, a benign etiology is favored (such as a post inflammatory/fibrotic lesion.) Would suggest annual ultrasound surveillance monitoring of this lesion.