Floating gallbladder: a questionable prelude to torsion: a case report.

Lyons KP, Challa S, Abrahm D, Kennelly BM

An unusual presentation of non-Hodgkin's lymphoma: a case report.

Challa S, Botvinick EH, Neymark E, Price D, Hawkins RA

Unusual appearance of thromboembolism on perfusion lung imaging.

Shadan S, Challa S, Hawkins RA

Extraskeletal uptake of technetium-99m-MDP in sites of heparin administration.

Challa S, Miller JH

Ga-67 uptake in a perisplenic fluid collection: planar and SPECT images.

Challa S, Milne N, Brown TW, Lyons KP

Symmetric tibial stress fractures from extensive jump roping.

Challa S, Miller JH

Relative sensitivity of Tc-99m WBC versus In-111 WBC in a patient with Crohn disease and steroid use.

Challa S, Lyons KP, Broekelschen P, Milne N

Pancreatitis secondary to endoscopic retrograde cholangiopancreatography on a whole-body Ga-67 scan.

Lyons KP, Challa S, Milne N, Brown WT

Relative sensitivity of Tc-99m WBC versus In-111 WBC in a patient with Crohn's disease on steroids.

Lyons KP, Challa S, Broekelschen P, Milne N

Radiology of pancreatic tuberculosis: a report of three cases.

Takhtani D, Gupta S, Suman K, Kakkar N, Challa S, Wig JD, Suri S