Avoiding misdiagnosis of multilocular thymic cysts as malignant tumors on computer tomography

Abstract

This editorial provides insights from a case report by Sun et al published in the World Journal of Clinical Cases. The case report focuses on a case where a multilocular thymic cyst (MTC) was misdiagnosed as a thymic tumor, resulting in an unnecessary surgical procedure. Both MTCs and thymic tumors are rare conditions that heavily rely on radiological imaging for accurate diagnosis. However, the similarity in their imaging presentations can lead to misinterpretation, resulting in unnecessary surgical procedures. Due to the ongoing lack of comprehensive knowledge about MTCs and thymic tumors, we offer a summary of diagnostic techniques documented in recent literature and examine potential causes of misdiagnosis. When computer tomography (CT) values surpass 20 Hounsfield units and display comparable morphology, there is a risk of misdiagnosing MTCs as thymic tumors. Employing various differential diagnostic methods like biopsy, molecular biology, multi-slice CT, CT functional imaging, positron emission tomography/CT molecular functional imaging, magnetic resonance imaging and radiomics, proves advantageous in reducing clinical misdiagnosis. A deeper understanding of these conditions requires increased attention and exploration by healthcare providers. Moreover, the continued advancement and utilization of various diagnostic methods are expected to enhance precise diagnoses, provide appropriate treatment options, and improve the quality of life for patients with thymic tumors and MTCs in the future.

Keywords: Thymic tumor; Multilocular thymic cyst; Misdiagnosis; Differential diagnosis; Imaging manifestation; Computed tomography

Core Tip: This editorial provides insights into a recently published clinical case report detailing the experience of a 39-year-old male patient afflicted with a multilocular thymic cyst concurrent with an anterior mediastinal infection. Regrettably, the condition was initially misdiagnosed as a malignant thymic tumor and subsequently managed surgically. Our analysis delves into the factors contributing to this misdiagnosis and outlines enhanced methods for differential diagnosis. It is our hope that this discussion will prompt medical professionals to prioritize imaging-based differential diagnosis and adopt a more comprehensive clinical perspective, thereby reducing the occurrence of clinical misdiagnosis.