What finding is consistent with the diagnosis of prostate cancer in a patient reporting night sweats and chronic low-grade fever?

The presence of night sweats and chronic low-grade fever can be indicative of a systemic condition like prostate cancer. In the context of this diagnosis, the absence of upper respiratory symptoms helps support the likelihood that these symptoms are not stemming from an infection or a respiratory illness, which can often cause similar systemic symptoms such as fever and night sweats.

When interpreting the findings of patients with potential prostate cancer, it's crucial to consider whether the symptoms align with cancer-related effects, which often include nonspecific systemic manifestations like fever or weight loss, rather than a localized infectious process, which would typically present with upper respiratory symptoms as well.

Therefore, the absence of upper respiratory symptoms suggests that the fever and night sweats may be more closely related to the underlying malignancy rather than an acute infection, reinforcing the suspicion of prostate cancer in this clinical context.