A biopsy result indicating that the specimen is malignant means the patient has:

A biopsy result indicating that the specimen is malignant directly identifies that the tissue sample tested contains cancer cells. When a specimen is classified as malignant, it signifies that the cells have the potential to grow uncontrollably and spread to other parts of the body, which is characteristic of cancer. This condition points to the likelihood of progression and worsening of the disease if left untreated, hence the connection with cancer's progressive nature.

The other choices refer to different medical conditions that do not relate directly to malignancy. For instance, an infection is typically indicated by other types of lab results and would not be described as malignant. A benign tumor, by definition, means that the growth is non-cancerous and does not indicate malignancy. Osteoporosis refers to a condition affecting bone density and is unrelated to cancer or biopsy results. Thus, the identifying factor of malignancy leads to the conclusion that a patient with such a result has cancer that can worsen without intervention.