American Family Physician

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Pulmonary nodules are often incidentally discovered on chest imaging or from dedicated lung cancer screening. Screening adults 50 to 80 years of age who have a 20-pack-year smoking history and currently smoke or have quit smoking within the past 15 years with low-dose computed tomography is associated with a decrease in cancer-associated mortality. Once a nodule is detected, specific radiographic and clinical features can be used in validated risk stratification models to assess the probability of malignancy and guide management...

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Posttraumatic stress disorder (PTSD) is common, with a lifetime prevalence of approximately 6%. PTSD may develop at least one month after a traumatic event involving the threat of death or harm to physical integrity, although earlier symptoms may represent an acute stress disorder. Symptoms typically involve trauma-related intrusive thoughts, avoidant behaviors, negative alterations of cognition or mood, and changes in arousal and reactivity. Assessing for past trauma in patients with anxiety or other psychiatric illnesses may aid in diagnosing and treating PTSD...

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Polycystic ovary syndrome (PCOS) is the most common endocrinopathy affecting women of childbearing age. Its complex pathophysiology includes genetic and environmental factors that contribute to insulin resistance in patients with this disease. The diagnosis of PCOS is primarily clinical, based on the presence of at least two of the three Rotterdam criteria: oligoanovulation, hyperandrogenism, and polycystic ovaries on ultrasonography. PCOS is often associated with hirsutism, acne, anovulatory menstruation, dysglycemia, dyslipidemia, obesity, and increased risk of cardiovascular disease and hormone-sensitive malignancies (e...

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Glaucoma is a group of eye disorders characterized by progressive deterioration of the optic nerve that can lead to vision loss. Primary open-angle glaucoma (POAG) is the most common form in the United States. The risk of POAG increases with age, family history of glaucoma, type 2 diabetes mellitus, hypotension, hypothyroidism, obstructive sleep apnea, cardiovascular disease, and myopia. Up to one-half of patients are undiagnosed because a diagnosis often requires monitoring over years to document changes suggesting POAG...

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