title: An uncommon case showing three different pathologies on (99m)technetium-methylene diphosphonate bone scintigraphy.
abstract: (99m)Technetium-methylene diphosphonate bone scintigraphy (BS) has an important role in evaluating skeletal pathology, especially its extent. Incidental extra-osseous uptake may sometimes be seen in soft-tissue pathologies. We present a 64-year-old female with skull base osteomyelitis referred for BS which revealed involvement of the skull base on the left side, uptake was also noted in bilateral lungs secondary to hypercalcemia of renal failure and in the D12-L1 vertebrae as the patient had a history of Pott's spine. This is perhaps a unique case showing three findings each of a different etiology in the same scan.
authors.affiliation: Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Partha Sarathi
authors.initials: PS
authors.lastname: Chakraborty
authors.affiliation: Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Sellam
authors.initials: S
authors.lastname: Karunanithi
authors.affiliation: Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Varun Singh
authors.initials: VS
authors.lastname: Dhull
authors.affiliation: Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Kunal
authors.initials: K
authors.lastname: Kumar
authors.affiliation: Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Ravikant
authors.initials: R
authors.lastname: Gupta
authors.affiliation: Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Madhavi
authors.initials: M
authors.lastname: Tripathi
keywords: 99mTechnetium methylene diphosphonate bone scan; Pott's spine; extra-osseous uptake; hypercalcemia; skull base osteomyelitis