A	B	C
Findings of CSD show the typical inflammatory epitrochlear nodule.  The nodule is isointense to muscle on T1 (A,B,C).
D	E
Hyperintense to muscle on T2 (D), and shows  heterogeneous enhancement after gadolinium administration on T1 FS post image(E).  Note the central fatty center of lymph node with increased vascularity.

Cat Scratch Disease (CSD) is a cause for regional lymphadenitis. It often presents  3-10 days after exposure with a painful poorly defined soft tissue mass which can be confused for lymphoma, sarcoma, breast carcinoma, or hematoma and thus clinical history is important^1,3. The lymphadenopathy is usually located in the axilla, inguinal region, head and neck, and epitrochlear regions³.  Diagnosis includes (more…)