Background: Monorchism is having only one testis and cryptorchidism is undescended testis. This is usually congenital anomaly but can happen as a result of trauma or surgical procedure undertaken. There are great psychosocial factors related to this entity. The complete evaluation is of paramount importance. Radiological protocol for detailed search for the hidden testis is of utmost importance for future management procedure. Case presentation: We present 2-years old male child who was evaluated for having an empty scrotal sac. He underwent Ultrasound (US), and magnetic resonance imaging (MRI) for the evaluation. Diffusion weighting images (DWI) played a great role in the diagnosis. The child was having only left sided testis and that too was undescended. Conclusion: There is great value of cross-sectional imaging in diagnosing the hidden testis. The sonography remains the first investigation of choice. MRI should be undertaken to locate the testis but may fail also for the localization. Diffusion weighted imaging (DWI) plays an important role with great reliability in the diagnosis among pediatric cases being radiation-free modality.
Keywords: monarchism, cryptorchidism, psychosocial, US, MRI, DWI, case report