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Background/aim: Thyroid cancer is the most common endocrine malignancy. Recently the incidence has been increasing faster compared to other malignancies. Different studies have shown that the incidence of breast cancer in patients followed due to thyroid cancer has increased, and vice versa. The aim of this study was to evaluate the frequency of second primary cancers in the follow-up of patients with thyroid cancer. Materials and methods: In this study, 1196 patients with thyroid cancer were evaluated in the Necmettin Erbakan University Meram Medical School's Department of Endocrinology between 2004 and 2018. Demographic characteristics and radiological and pathological results of the patients were recorded. The presence of accompanying second malignancies in patients with thyroid cancer was investigated. Results: In our study, 985 (82.4%) women (mean age: 46.1 ± 13.3 years) and 211 (17.6%) men (mean age: 49.9 ± 14.2 years) were evaluated. The median follow-up was 63 months (2-164 months). Of the 1196 patients, 1126 (94.1%) had no additional cancer and 70 (5.9%) patients had a second malignancy. The accompanying second malignancies were breast cancer in 24 (2%) patients, skin cancer in 8 (0.7%) patients, renal cell cancer in 5 (0.4%) patients, lung cancer in 5 (0.4%) patients, colon cancer in 5 (0.4%) patients, lymphoma in 5 (0.4%) patients, endometrial cancer in 4 (0.3%) patients, and 14 cases of other rare types of cancer. Conclusion: In our study, it was found that the most common second primary malignancy in patients with thyroid cancer was breast cancer. However, other cancers (skin cancer, renal cell cancer, lymphoma, and colon, lung, or endometrial cancer) may occur in patients with thyroid cancer.

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Objective: To demonstrate the presence of splenomegaly in primary antiphospholipid syndrome (PAPS) patients without accompanying portal hypertension or comorbidity. Methods: Twelve patients (7 women) aged 23–65 years followed upon the diagnosis of PAPS were enrolled in the study. We documented the identified causes of splenomegaly in patients with PAPS, and searched for the potential causes of splenomegaly in patients with spleen enlargement. PAPS patients with or without splenomegaly were evaluated in terms of demographic and clinical findings. Results: Splenomegaly was present in 6 of the 12 patients. In these patients, there were no infections, hematological disorders, portal hypertension or malignancy that might lead to splenomegaly. The long axis of spleen was found to be in the range of 137–155 mm in patients with splenomegaly. Splenomegaly was more frequently determined in female PAPS patients. The splenomegaly group had a longer duration of disease (median 5.5 vs. 0.75 years) and a higher number of thrombotic events (median 3 vs. 1.5). The splenomegaly group was especially composed of patients who never received any anticoagulant and acetylsalicylic acid, or who used these agents irregularly for very short periods. Conclusion: Splenomegaly was observed in association with disease duration, frequency of thrombotic events and irregular antiaggregant or anticoagulant treatment in patients with PAPS, in the absence of comorbidity or portal hypertension.

Background/aim: Primary hyperparathyroidism (PHPT) is a disease that is diagnosed more frequently and generally in the asymptomatic period, with widely available biochemical tests. Evidence suggesting an association between PHPT and malignancy risk is increasing. Clarification of this association will be useful in PHPT for malignancy screening and management of patients with PHPT. In this study, we aimed to investigate the frequency of cancer in PHPT patients. Materials and methods:A total of 775 PHPT patients were included in the retrospective study. Demographic, clinical and laboratory data of the patients were evaluated retrospectively.Results: Malignancy was detected in 128 (16.50%) of 775 PHPT patients (female/male: 625/150). The mean age at diagnosis of PHPT was 57.99 ± 10.86 years, and the mean age at diagnosis of malignancy was 57.46 ± 11.17 years. Of the 128 patients with malignancy, 53 (41.40%) were diagnosed in the same year as PHPT. In terms of malignancy types, 51 (6.50%) of 775 PHPT patients had thyroid cancer. Thyroid cancer was followed by breast cancer (2.30%) and stomach cancer (1%) in order of frequency. Conclusion:We think that PHPT patients should be examined more carefully in terms of cancer risk, especially thyroid cancer. More comprehensive studies are needed to clarify the relationship between PHPT and cancer.