[Synchronous presentation of thyroid carcinoma and malignant lymphoproliferative disease: report of 3 cases]. / Presentación sincrónica de carcinoma de tiroides y enfermedad linfoproliferativa maligna: a propósito de tres casos.

Multiple primary neoplasms are increasing in clinical practice, which is mainly due to the longer survival of cancer patients. Radiotherapy at an early stage of Hodgkin disease or lymphoma is well known to be associated with the future occurrence of secondary thyroid cancer. Nevertheless, the synchronous presentation of these two types of neoplasms is exceptional. We report here three cases of synchronic diagnosis of thyroid carcinoma and a malignant lymphoproliferative disease in patients who had not previously received radiotherapy nor chemotherapy. In malignant tumours of synchronic presentation, there is usually and underlying genetic predisposition involved in the etiology. In our patients, no carcinogenic environmental factor was demonstrated and, while this neoplastic association might be casual, an investigation on the possible individual predisposing factors would be warranted.

[Gastric syphilis: infrequent presentation of a common disease]. / Sífilis gástrica: presentación infrecuente de una enfermedad común.

A stenosing antral lesion was diagnosed in a patient with previous ulcer dyspepsia. Radiology, gastroscopy and serology made the diagnosis of gastric syphilis. The lesion disappeared with specific therapy. We present this case because of its rare gastric onset (0.3%) among visceral syphilis, though sexual transmission diseases are increasing nowadays.