Metastatic calcaneal adenocarcinoma from lung primary: A case report

Although the skeletal system is a common site for metastatic disease, metastasis to the calcaneus is very rare, especially from a lung primary; furthermore, calcaneal metastasis as the presenting symptom of a malignant process is rarer still. Only two cases of calcaneal metastasis from a primary lung cancer have previously been reported. The presenting symptom of metastatic lesions of the calcaneus is typically plantar-heel pain; idiopathic plantar-heel pain is a common complaint in and of itself, which obfuscates the diagnosis of metastatic cancer. As a result, calcaneal metastases are difficult to diagnose. We present the rare case of a patient with calcaneal metastasis from a primary lung adenocarcinoma along with a review of literature as a reminder that occasionally, though common things are common, uncommon things do occur.