Soft tissue metastasis in patients with lung cancer is infrequently reported in the literature. Primary lung carcinomas have been shown to exhibit evidence of metastasis to soft tissue in 2.3% of cases. A 75-year-old Caucasian female presented with clinical signs of anemia and the appearance of several soft tissue masses on her back. The patient was a former smoker with a 20-pack-year history. Further workup revealed a diagnosis of adenocarcinoma of the lung with soft tissue metastasis. Recognizing the early signs of metastasis is crucial to providing the patient the best treatment available, and the importance of a thorough physical examination cannot be emphasized enough.
Keywords: adenocarcinoma of unknown origin; case report; clinical practice guideline; non-small-cell lung cancer; subcutaneous metastasis.
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