Intrapulmonary Myelolipoma Depicted by 18F-FDG PET/CT

Area of Science:

• Oncology
• Radiology
• Pathology

Background:

• Myelolipoma is a rare, benign tumor composed of mature fat and hematopoietic cells.
• While adrenal myelolipomas are common, intrapulmonary locations are exceptionally rare.
• The 18F-FDG PET/CT imaging characteristics of pulmonary myelolipomas are poorly understood.

Purpose of the Study:

• To report a diagnostically challenging case of intrapulmonary myelolipoma.
• To comprehensively evaluate the 18F-FDG PET/CT imaging features of this rare tumor.
• To contribute to the limited literature on the imaging of pulmonary myelolipomas.

Main Methods:

• Case presentation of a patient with an intrapulmonary mass.
• Detailed analysis of 18F-FDG PET/CT scan findings.
• Histopathological correlation following surgical resection.

Main Results:

• The intrapulmonary lesion exhibited specific 18F-FDG uptake patterns on PET/CT.
• Imaging findings were initially ambiguous, mimicking other neoplastic processes.
• Histopathology confirmed the diagnosis of myelolipoma.

Conclusions:

• 18F-FDG PET/CT can provide valuable insights into intrapulmonary myelolipomas, despite potential diagnostic ambiguity.
• Comprehensive imaging evaluation is crucial for differentiating pulmonary myelolipomas from other lung lesions.
• This case expands the understanding of 18F-FDG PET/CT in rare pulmonary neoplasms.