Thursday, June 14, 2012

Gastric Bull's Eye Lesion Differential Diagnosis

While initially described on fluoroscopic studies, the gastric bull's eye lesion differential remains useful to know in the age of MDCT. A quick and dirty mnemonic for this appearance is KLM. 

DiseaseNotes
KKaposi's sarcoma
LLymphoma
MMelanoma / Metastases

Hematogenous metastasis from breast cancer
Source: Radiology
GIST and carcinoid tumor can also be included in the differential (but didn't fit the mnemonic so well). Rarely, a gastric lipoma can ulcerate and also give a targetoid appearance.