Pulmonary Invasive Mucinous Adenocarcinoma in an Asymptomatic 23-Year-Old Male: Presentation with a Large Cavitary Mass

Abstract

Pulmonary invasive mucinous adenocarcinoma (PIMA) is a variant of invasive adenocarcinoma of the lung (1). The incidence of this tumor is known to be rising (2). The tumor cells demonstrate goblet cell histology with copious intracytoplasmic mucin material (1, 2). Imaging may show a broad spectrum of findings, but lobar or segmental consolidation is found in the majority (1, 3-5). This case presented as a large mass-like consolidation with multiple internal air-cysts and/or pseudo-cavitations which mimicked complicated congenital cystic lung disease in a patient with relatively young age to consider lung cancer. Therefore, we report a case of PIMA presenting as a large cavitary mass in a 23-year-old male with clinical and radiological findings, and a review of the literature. CASE REPORT