Key result
Poorly differentiated left mediastinal squamous cell carcinoma invades the left atrium in an asymptomatic 67-year-old woman.
Case Report (n=1)
Highlights the potential for primary lung tumors to extend into the left atrium asymptomatically, emphasizing the need for age-appropriate screening.
A 67-year-old female patient presented asymptomatically for further evaluation of a chest mass. Other than significant smoking history, the patient had been healthy with a recently treated case of uncomplicated pneumonia. The mass originated in the aortopulmonary window of the left mediastinum and invaded proximally into the left superior pulmonary vein and subsequently into the left atrium. The mass protrusion into the mitral valve occupied 50% of the left atrium space but showed no clinical symptoms of a valvular blockade. Poorly differentiated squamous cell carcinoma was identified upon biopsy. These findings of a primary lung tumor with atrial extension in an asymptomatic patient point to the importance of age-appropriate screening and standardization treatment modalities.
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Huang et al. (2021) conducted a case report in Asymptomatic tumor thrombus in the left atrium from squamous cell carcinoma (n=1). A 67-year-old asymptomatic female was found to have a poorly differentiated squamous cell carcinoma originating in the left mediastinum and invading the left atrium.
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