title: Diagnostic dilemma of degenerative joint disease, chronic avascular necrosis or metastasis in planar Tc-99m-methylene diphosphonate planar skeletal scintigraphy excluded by single positron emission computed tomography/computed tomography.
abstract: We present a 71-year-old male patient subjected to skeletal scintigraphy for metastasis work up of prostate cancer. Whole body planar images revealed a solitary focal tracer uptake in left femoral head mimicking as solitary metastatic focus. Single positron emission computed tomography/computed tomography images localized this increased tracer uptake to the subchondral cysts with minimal sclerosis in left femur head with no decrease in size of femur head and was reported as (degenerative joint disease).
authors.affiliation: Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
authors.forename: Tarun Kumar
authors.initials: TK
authors.lastname: Jain
authors.affiliation: Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
authors.forename: Rohit Kumar
authors.initials: RK
authors.lastname: Phulsunga
authors.affiliation: Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
authors.forename: Rajender Kumar
authors.initials: RK
authors.lastname: Basher
authors.affiliation: Department of Radiotherapy, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
authors.forename: Narendra
authors.initials: N
authors.lastname: Kumar
authors.affiliation: Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
authors.forename: Anish
authors.initials: A
authors.lastname: Bhattacharya
authors.affiliation: Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
authors.forename: Bhagwant Rai
authors.initials: BR
authors.lastname: Mittal
keywords: Avascular necrosis; degenerative joint disease; femur head; planar skeletal scintigraphy; single positron emission computed tomography/computed tomography