Which specialty focuses on the diagnosis of diseases at a cellular level?

Pathology is the medical specialty that concentrates on the study and diagnosis of disease through the examination of cells and tissues. Pathologists analyze samples obtained from biopsies, surgeries, and other procedures to identify abnormalities that indicate specific diseases, including cancer, infections, and autoimmune disorders. This specialty plays a crucial role in guiding treatment decisions by providing accurate diagnoses based on cellular characteristics, which allows for targeted therapies and interventions.

In contrast, radiology focuses on imaging techniques to visualize structures within the body, while oncology is concerned with the treatment and management of cancer rather than the diagnostic aspect at the cellular level. Ophthalmology, on the other hand, deals with eye health and vision disorders, which does not involve the cellular diagnosis associated with pathology. This distinction makes pathology the correct answer as the specialty dedicated to diagnosing diseases at a cellular level.