[Tourette syndrome and reading disorder in a boy with left parietofrontal tract disruption]. / Trastorno de Tourette y de la lectura en un niño con disrupción del tracto parietofrontal izquierdo.

We present the case of a nine-year-old boy with Tourette syndrome and reading disorder with a history of a severe infectious process in the late neonatal period. Brain MRI showed a left parietal malacotic cavity and diffusion tensor imaging and tractography showed a striking disruption of the white matter bundle that joins the left parietal region with the ipsilateral frontal region with involvement of the left superior longitudinal fasciculus and of the left arcuate fasciculus. Although Tourette syndrome and reading disorder are fundamentally hereditary neuropsychiatric disorders, they can also occur secondary to cerebral alterations like those existing in this boy. The introduction of modern neuroimaging techniques in patients with neuropsychiatric disorders (or the risk of developing them) can be very useful in the diagnosis and prognosis in the future.

[Complete unilateral dilation of the vas deferens as a cause of an inguinal mass]. / Dilatación unilateral completa de conducto deferente como causa de masa inguinal.

The complete unilateral dilation of the vas deferens is an extremely rare radiologic finding. Most cystic structures adjacent to the prostate can be grouped into cysts and diverticula. The finding of an inguinal mass makes it necessary to rule out intestinal hernias and other entities. We present the case of a patient who developed an inguinal mass secondary to unilateral dilation of the vas deferens.

[Chondroblastic osteosarcoma over a total hip prosthesis]. / Osteosarcoma condroblástico sobre una artroplastia total de cadera.

Malignant transformation in the area of joint prostheses is very rare. We present the case of a woman who developed a chondroblastic osteosarcoma in the area where a total hip prosthesis had been implanted.