Tc-99m MDP scintigraphy of temporal bone metastasis from breast carcinoma

The authors present a case of breast carcinoma metastasis to the petrous apex demonstrated by Tc-99m MDP bone scintigraphy. Metastasis to the temporal bone is rare and difficult to detect due to its delayed symptomatology and occurrence at the advanced stage of the disease. Knowledge of the principal neoplasms susceptible to spread to the temporal bone, their different routes of propagation, and respective sites of temporal bone involvement is helpful in the work-up strategy for metastases.