[Sarcopenia: new cut-off value of handgrip in postmenopausal Argentine women].

Introduction: Sarcopenia is a global health problem, there are currently several criteria for its diagnosis and the implementation of its own cut-off values for each population is recommended. The objective was to evaluate the handgrip strength (HG) in postmenopausal women from Buenos Aires and establish a cut-off value.

Methods: A total of 704 women ≥50 years of age were evaluated, who answered a questionnaire on osteoporosis risk and HG was taken.

[Sarcopenia: is a clinical diagnosis possible?].

Sarcopenia increases the risk of falls and fractures, as well as being related to various diseases and increased mortality. Different research groups propose different definitions that include the measurement of muscle mass by DXA and the assessment of hand grip strength through a hand dynamometer. However, these 2 instruments are not usually available in clinical practice.

Brown tumors of the jaw: an atypical manifestation of primary hyperparathyroidism.

Brown tumors represent the terminal stage of bone remodeling processes in primary hyperparathyroidism. Currently they are rare, and typically affect long bones, pelvis and ribs. Brown tumors may be not included in the initial differential diagnosis of bone disease, especially when they are present in atypical localizations.