Table 2.

Group 2. Patients with increased blood flow and blood pool and areas of focal uptake of tracer on Single Photon Emission Computed Tomography (SPECT) and bony abnormalities on Computed Tomography (CT). The lesions noted on CT were associated with focal increased uptake of tracer on the SPECT except for Patient 2, in whom the navicular cyst was not associated with focal tracer uptake, but there was focal uptake of tracer at the base of the 5th metatarsal. A positive (+ve) result indicates increased tracer uptake in the phase of the bone scan as designated in the Table heading.

Patient Number	Blood Flow	Blood Pool	Delayed Phase	SPECT (Areas of Increased Uptake)	CT
1	+ve	+ve	+ve	1st, 2nd and 3rd Metatarsal bases Medial, middle and lateral cuneiforms, (1st, 2nd and 3rd tarso-metatarsal joints), talus, and calcaneum	Erosions medial cuneiform
2	+ve	+ve	+ve	Base of 5th metatarsal	Navicular cyst
3	−ve	+ve	+ve	Medial cuneiform, 2nd and 3rd metatarsal bases	Cyst middle cuneiform and 2nd metatarsal and subarticular cystic lesions medial cuneiform
4	+ve	+ve	+ve	1st Metatarsal head	Lucency 1st metatarsal head
5	+ve	−ve	+ve	1st Metatarsal head	Cyst 1st metatarsal head
6	+ve	+ve	+ve	1st Metatarsal base and medial cuneiform	Erosions 1st metatarsal base and medial cuneiform and Erosions in 1st metatarsal head
7	+ve	−ve	+ve	Medial cuneiform,1st and 2nd metatarsal bases	Erosions medial cuneiform and 1st and 2nd metatarsal bases
8	+ve	+ve	+ve	Base of cuboid and distal anterior calcaneum (calcaneo-cuboid joint)	Subarticular cysts base of cuboid
9	+ve	+ve	+ve	Middle cuneiform and navicular, 3rd metatarsal	Lucency middle cuneiform, degenerative change 1st metatarsal-phalangeal joint