Diagnosis of multiple pulmonary cavernous hemangiomas via dual-layer spectral CT: A case report

Abstract

Rationale:Cavernous hemangioma is a benign vascular tumor, which very rarely occurs in the lung. When appearing as multiple nodules on chest CT, this tumor can be misdiagnosed as metastatic malignancy.Patient concerns:A 72-year-old woman presented with incidentally found multiple lung nodules on chest radiograph.Diagnoses:Based on information derived from dual-layer spectral CT images, the possibility of slow flow vascular tumor such as cavernous hemangioma was suggested. A pathologic diagnosis of pulmonary cavernous hemangioma was made via video-Assisted thoracoscopic biopsy.Interventions:After tissue confirmation, the patient was discharged without further intervention.Outcomes:The patient recovered without any event. Follow-up chest CT performed 6 months later showed no significant interval change in nodule size and distribution.Lessons:Material decomposition images obtained from dual energy CT can help physicians understand the character of tumor vascularity for an accurate diagnosis of pulmonary cavernous hemangioma.