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Table 1 All skeletal and extraskeletal anomalies secondary to hyperparathyroidism

From: Unusual pathological fracture of the clavicle revealing primary hyperparathyroidism: a case report

Skeletal anomalies

Early stage:

• Symmetrical abnormal bone activity is present, particularly in the calvarium, mandible, sternum, and epiphyses of long bones with or without accompanying changes in the vertebrae and pelvis [9].

Severe cases: appearances are those of a super scan:

• Increased tracer uptake in axial skeleton.

• Increased tracer uptake in long bones.

• Increased tracer uptake in periarticular areas.

• Faint or absent kidney images [10].

Extraskeletal anomalies

Extraskeletal metastatic calcification in primary hyperparathyroidism:

• Increased visceral uptake of technetium-99m-labeled phosphate throughout the lung, liver, stomach [11].

Extraskeletal anomalies secondary to secondary hyperparathyroidism:

• Increased diffuse activity in the lungs and the small kidneys.

• Increased muscle activity (diffuse and bilaterally in the vast and adductor of both thighs, and in the abdominal muscles) [12].