[Positron emission tomography (PET) imaging in head and neck cancer]. / La Tomografía por Emisión de Positrones (PET) en la patología oncológica de cabeza y cuello.

Positron Emission Tomography (PET) with 18F-Fluordeoxyglucose is a diagnostic imaging technique very useful in the management of head and neck cancer, better than anatomic imaging in most cases. PET shows higher diagnostic accuracy in the detection of local and regional tumor recurrences. PET is also indicated for the identification of unknown primary tumors when regional nodal metastasis is the presenting feature. The improved planning of radiation therapy with hybrid cameras PET-CT, the earlier diagnosis of post-radiotherapy residual disease and the possibility of monitoring the effects of chemotherapy makes PET imaging an important tool in evaluating tumor response to treatment.

[Hodgkin's disease and pregnancy]. / Enfermedad de Hodgkin y embarazo.

This is a short communication in which 2 cases of familiar Hodgkin's disease are reported. The first case is a 27 years old woman with the diagnosis of Hodgkin's disease, nodular sclerosis, stage III-B (with mediastinal, para-aortic and right supraclavicular involvement), treated initially with radical radiotherapy. She was pregnant at the time of diagnosis. The second case is a 15 years old woman with similar diagnosis of Hodgkin's disease stage II-A (with mediastinal and right supraclavicular involvement) and identical histology. She was the daughter of case 1. The observation of familiar Hodgkin's disease and its possible biological implications are discussed.