Background: Consolidation with or without ground-glass opacity is the typical radiologic finding of lung\r\nmetastases of adenocarcinoma from the gastrointestinal tract. Lung excavated metastases from gastrointestinal\r\ncarcinoma are very rare.\r\nCase presentation: The authors describe an unusual presentation of multiple cavitated lung metastases from\r\ncolon adenocarcinoma and discuss the outcome of a patient. The absence both of symptoms and other disease\r\nlocalizations, the investigations related to different diagnostic hypotheses and the empirical treatments caused a\r\ndelay in correct diagnosis. Only a transparietal biopsy revealed the neoplastic origin of nodules.\r\nConclusions: This report demonstrates that although lung excavated metastases are described in literature, initial\r\nfailure to reach a diagnosis is common. We would like to alert clinicians and radiologists to the possibility of\r\nunusual atypical features of pulmonary metastases from colon adenocarcinoma.
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