Sex Differences in Neoplastic Progression in Barrett's Esophagus: A Multicenter Prospective Cohort Study.

Recommendations in Barrett's esophagus (BE) guidelines are mainly based on male patients. We aimed to evaluate sex differences in BE patients in (1) probability of and (2) time to neoplastic progression, and (3) differences in the stage distribution of neoplasia. We conducted a multicenter prospective cohort study including 868 BE patients. Cox regression modeling and accelerated failure time modeling were used to estimate the sex differences. Neoplastic progression was defined as high-grade dysplasia (HGD) and/or esophageal adenocarcinoma (EAC). Among the 639 (74%) males and 229 females that were included (median follow-up 7.1 years), 61 (7.0%) developed HGD/EAC. Neoplastic progression risk was estimated to be twice as high among males (HR 2.26, 95% CI 1.11-4.62) than females. The risk of HGD was found to be higher in males (HR 3.76, 95% CI 1.33-10.6). Time to HGD/EAC (AR 0.52, 95% CI 0.29-0.95) and HGD (AR 0.40, 95% CI 0.19-0.86) was shorter in males. Females had proportionally more EAC than HGD and tended to have higher stages of neoplasia at diagnosis. In conclusion, both the risk of and time to neoplastic progression were higher in males. However, females were proportionally more often diagnosed with (advanced) EAC. We should strive for improved neoplastic risk stratification per individual BE patient, incorporating sex disparities into new prediction models.

Radiological analysis of hand and foot injuries after small aircraft crashes.

Medico-legal investigation of fatal aviation accidents should contribute to the reconstruction of the accident in addition to providing the usual information about cause and manner of death. In cases with more than one fatality, the question of who was flying the plane at the time of the crash may need to be answered. In such cases the identification of "control injuries" plays an important role. This study aims to investigate whether specific patterns of skeletal hand and foot injuries could assist in the identification of the pilot. The analysis of radiological investigations of hands and feet of 27 fatalities from 18 accidents showed that foot injuries are more frequent than hand injuries in pilots and passengers, dislocations of feet were more frequent in passengers, and right-sided injuries were more frequent in pilots. Injuries of the distal parts of the hand were slightly more frequent in the pilot group. The limited numbers in the study do not allow definitive conclusions and further investigations are needed. However, the study yields interesting results and shows that radiological examination should be included in the medico-legal air crash investigation.

[A 73-year-old man with a Merkel cell carcinoma]. / Een 73-jarige man met een merkelcel-carcinoom.

A 73-year-old man had a firm node on his right upper arm, which was caused by a Merkel cell carcinoma (MCC). The diagnosis was made on the basis of characteristic histopathological findings and a surgical excision with wide margins followed. Twenty months later a considerable swelling manifested in the right armpit due to a metastasis. During a CT scan of the thorax and abdomen, 2 suspicious abnormalities were seen in the mesenterial adipose tissue of the left lower abdomen and left perirenal adipose tissue. A tissue sample of the last abnormality taken under CT guidance confirmed this to be a metastasis of the MCC. The patient was irradiated but chose not to have chemotherapy. He died 2 years after the diagnosis. Merkel cell carcinoma is a rare and aggressive malignant skin neoplasm. Early recognition facilitates cure of the disease. Treatment is multidisciplinary, but surgery, either alone or in combination with radiotherapy, forms the basis of treating both the localised and regionalized forms of the disease. Chemotherapy may be used in case of disseminated disease and has a reasonable, albeit temporary, effect. The 10-year survival rate varies from 20-70%, dependent on the stage of the disease.