title: Case of the month: ectomesenchymoma (malignant testicular tumor).
mesh_terms: D003456:Cryptorchidism / Q000150:complications; D006801:Humans; D007021:Hypospadias / Q000150:complications; D007223:Infant; D008297:Male; D008637:Mesenchymoma / Q000175:diagnosis*; D013736:Testicular Neoplasms / Q000175:diagnosis*; D014463:Ultrasonography