Pericardial agenesis.

Congenital pericardial defect is a rare and usually asymptomatic condition which is classified incomplete or partial. Up to 70% of cases consist of complete absence of left pericardium. The diagnosis may be challenging due to its low frequency and absence of correlation with any specific finding on the clinical examination.

Polycystic Thyroid Disease in Pediatric Patients: An Uncommon Cause of Hypothyroidism.

Polycystic thyroid disease has been described as a rare cause of hypothyroidism. This uncommon entity has been reported in adults within areas with high iodine intake. Sonographic findings of multiple small thin-walled simple thyroid cysts in the context of hypothyroidism without thyroid autoantibodies are highly suggestive of this diagnosis.

Cystic dysplasia of the rete testis: case report.

Cystic dysplasia of the rete testis is a rare cause of paediatric scrotal mass often associated with other genitourinary tract anomalies. This benign congenital lesion is the result of a developmental disorder of the union of the Wolffian duct and the seminiferous tubules, and represents a diagnostically challenging condition. Cystic dysplasia of the rete testis should be considered in the differential diagnosis of paediatric scrotal masses.