Imaging findings of primary adrenal lymphoma and correlation with pathology / 中国医学影像技术

ABSTRACT

Objective: To explore CT, MRI manifestations of primary adrenal lymphoma (PAL) and their correlation with pathology. Methods: CT and MRI findings of 13 patients of PAL confirmed by pathology were analyzed retrospectively, among them 3 cases were confirmed by surgical operation and 10 cases by puncture biopsy, all 13 cases were diffuse large B-cell non-Hodgkin's lymphoma. The level of lactate dehydrogenase (LDH) increased in 8 cases. CT was performed in 11 cases (18 lesions), MR in 6 cases (11 lesions), and both CT and MR in 4 cases. Results: There were 22 lesions in 13 cases, 9 cases with bilateral lesions and 4 cases with unilateral lesions. The maximum diameter of the lesions was 2.60-13.40 cm. Sixteen lesions were round and oval shaped, 2 in irregular shape and 4 in adrenal shape. Eighteen lesions showed soft tissue density on CT, 9 lesions showed low signal intensity on MR T1WI and slightly high signal intensity on T2WI. CT or MR enhanced scan showed mild to moderate progressive homogeneous or uneven enhancement, of which 4 lesions showed grid enhancement in the venous phase or delayed phase of MR enhancement. Conclusion: PAL has certain imaging characteristics. Combined with the level of LDH can improve diagnostic accuracy of PAL before surgical operation.