Background: Malignant tumors originating from the heart are rare. Here, we report a case of lung squamous cell carcinoma and primary cardiac lymphoma.
Case Presentation: A 74-year-old man with a 10-year history of squamous cell carcinoma of the lung was admitted to the hospital for 1 year due to chest tightness and pressure in the precordial area during activities. PET-CT showed multiple metastases throughout the body, but multiple punctures obtained no clear pathological evidence. To improve the patient's cardiac symptoms, combined with the known history of squamous cell carcinoma, the chemotherapy of albumin-paclitaxel + carboplatin combined with intensity-modulated radiotherapy for residual lesions was performed, and the effect was improved. The patient developed tumor progression during re-examination, and a pathological examination was obtained, confirming the diagnosis of primary cardiac diffuse large B-cell lymphoma. Unfortunately, the patient died of heart failure while awaiting medical examination, with a total overall survival (OS) of 10 months.
Conclusions: Primary cardiac lymphoma (PLC) is rare and has an extremely poor prognosis. Therefore, rapid diagnosis is crucial for patient outcomes. If no pathological evidence can be obtained, understanding how to make a clinical diagnosis becomes essential. The characteristics of this case and examinations provide a foundation for clinical diagnosis and aim to improve treatment methods and options for PCL patients.