RESUMO
To document a case of an intraosseous angiolipoma (IOAL) of the humerus. Case presentation: A 52-year-old woman presented with gradually increasing pain in her right arm. A X-ray series of the right elbow and computed tomography revealed a nonexpanding radiolucent lesion in the distal end of the right humerus. The fatty nature of the lesion was further verified using fat-suppression techniques on magnetic resonance imaging sequences. Clinical discussion: The tumor was surgically excised, and the patient has experienced no symptoms for 2 years now. Histopathological findings confirmed the presence of an IOAL, which is an extremely rare intraosseous tumor that consists of thin blood vessels and mature adipose tissue. Conclusion: Accurate diagnosis of an IOAL is challenging; therefore, careful planning and assessment are paramount in the management of such lesions, with histological findings being essential for a conclusive diagnosis and surgery is the most suitable treatment choice in most cases.
RESUMO
Disruption of brain-expressed G protein-coupled receptor-10 (GPR10) causes obesity in animals. Here, we identify multiple rare variants in GPR10 in people with severe obesity and in normal weight controls. These variants impair ligand binding and G protein-dependent signalling in cells. Transgenic mice harbouring a loss of function GPR10 variant found in an individual with obesity, gain excessive weight due to decreased energy expenditure rather than increased food intake. This evidence supports a role for GPR10 in human energy homeostasis. Therapeutic targeting of GPR10 may represent an effective weight-loss strategy.