*BONE IMAGING INTERPRETATION* 1.BENIGN PRIMARY TUMOR -DENTAL DISEASE (E.G., PULPITIS, PERIODONTITIS, RECENT TOOTH EXTRACTION OR ROOT CANAL TREATMENTS, ILL-FITTING DENTURES) -FRACTURE -HYPEROSTOSIS FRONTALIS. -LOWER NECK UPTAKE ON ANTERIOR VIEW-NORMAL -MALIGNANT PRIMARY TUMOR -METASTASES -OSTEOMYELITIS -POSTSURGICAL CHANGES -SHOULDER UPTAKE CORRESPONDING TO HANDEDNESS -SINUSITIS -UPTAKE AROUND ORTHOPEDIC DEVICES RECENTLY IMPLANTED. 2.MULTIPLE SITES OF UPTAKE -DENTAL DISEASE (E.G., PULPITIS, PERIODONTITIS, RECENT TOOTH EXTRACTION OR ROOT CANAL TREATMENTS, ILL-FITTING DENTURES) -FRACTURES -METASTASES -OSTEOARTHRITIS -PAGET'S DISEASE -POSTSURGICAL -RHEUMATOID ARTHRITIS -URINE CONTAMINATION. 3.BILATERAL LOWER LIMB OSSEOUS UPTAKE -ARTHRITIDES (E.G., OSTEOARTHRITIS, RHEUMATOID ARTHRITIS) -FRACTURES-POSTTRAUMATIC. -HYPERTROPHIC PULMONARY OSTEOARTHROPATHY -MULTIPLE METASTASES -PAGET'S DISEASE. -STRESS FRACTURES 4.INCREASED UPTAKE IN THE PATELLA-UNILATERAL AND BILATERAL -IDIOPATHIC -CHONDROMALACIA -OSTEOARTHRITIS 5.COLD DEFECT -AVASCULAR NECROSIS (E.G., POSTTRAUMATIC, SICKLE CELL DISEASE, SLIPPED CAPITAL FEMORAL EPIPHYSIS, LEGG-PERTHES DISEASE) -MALIGNANT BONE TUMORS (E.G., MULTIPLE MYELOMA, RARELY OSTEOGENIC SARCOMA) -METASTASES (E.G., LUNG, BREAST) -PROSTHESIS OR PACEMAKER. 6.COLD DEFECT-PEDIATRIC PATIENT -AVASCULAR NECROSIS (STEROIDS, FRACTURE) -CONGENITAL ABSENCE OF A PEDICLE -CONGENITAL HEART DISEASE. -HISTIOCYTOSIS X. -INFILTRATIVE DISORDERS (LEUKEMIA, GAUCHER'S) -JOINT EFFUSION -LEGG-PERTHES DISEASE -METASTASES (ESPECIALLY NEUROBLASTOMA) -OSTEOMYELITIS -PARIETAL FORAMINA -PRIMARY TUMOR (OSTEOSARCOMA, EWING'S) -RADIATION -SICKLE CELL ANEMIA 7.DOUGHNUT SIGN-OSSEOUS AND NON-OSSEOUS -GIANT CELL TUMOR -METASTATIC CARCINOMA(E.G., FOLLICULAR THYROID CARCINOMA, LUNG CARCINOMA) -MYOCARDIAL INFARCTION -PRIMARY TUMOR (LUNG) 8.BEAUTIFUL BONE SCAN -DELAYED IMAGING-IN NORMAL PATIENT -METASTASES (E.G., BREAST, LUNG, PROSTATE, BLADDER, LYMPHOMA) -RENAL OSTEODYSTROPHY. 9.GENERALIZED DECREASED OSSEOUS UPTAKE -CONGESTIVE HEART FAILURE (E.G., MYOCARDIAL INFARCTION, CARDIOMYOPATHY) -IDIOPATHIC -POOR RADIOPHARMACEUTICAL PREPARATION-DISSOCIATION OF TAG 10.PERIARTICULAR UPTAKE -INFECTIOUS ARTHRITIS -OSTEOARTHRITIS -PROSTHESIS-FIRST SIX MONTHS FOLLOWING IMPLANTATION -RHEUMATOID ARTHRITIS 11.INCREASED UPTAKE IN THE SACRO-ILIAC JOINTS -ANKYLOSING SPONDYLITIS -OSTEOARTHRITIS -TRAUMA 12.POLYARTICULAR INVOLVEMENT -ANKYLOSING SPONDYLITIS -GOUT -OSTEOARTHRITIS -RHEUMATOID ARTHRITIS 13.INCREASED RENAL UPTAKE-DIFFUSE -IDIOPATHIC -URINARY TRACT OBSTRUCTION 14.LIVER UPTAKE -HEPATIC METASTASES (PRIMARILY COLON, ALSO BREAST, LUNG, ESOPHAGUS, MELANOMA) -OVERLYING SOFT TISSUE ACTIVITY SIMULATING LIVER UPTAKE -PRIOR TECHNETIUM-99m-SULFUR COLLOID SCAN SIMULATING UPTAKE. -RADIOPHARMACEUTICAL PREPARATION CAUSING COLLOID FORMATION. -RADIOPHARMACEUTICAL PREPARATION-ELEVATED ALUMINUM LEVEL IN GENERATOR ELUATE. 15.SOFT TISSUE UPTAKE IN ANY ORGAN SYSTEM -BREAST UPTAKE-NORMAL -CARTILAGE CALCIFICATION (E.G., COSTAL, THYROID, CRICOID) -CELLULITIS -CHRONIC RENAL FAILURE -ELECTRICAL BURN. -INFARCT-MYOCARDIAL, CEREBRAL, SPLENIC -INJECTION SITE -INSTRUMENT CONTAMINATION -METASTASES -MUSCLE NECROSIS SECONDARY TO PERIPHERAL VASCULAR DISEASES. -MUSCLE TRAUMA (E.G., CRUSH INJURY) -MYOSITIS OSSIFICANS -POOLING IN CALYCES-NORMAL -PREVIOUS TECHNETIUM-99m-SULFUR COLLOID SCAN SIMULATING UPTAKE. -PRIMARY SOFT TISSUE TUMOR-BENIGN -PRIMARY SOFT TISSUE TUMOR-MALIGNANT -RADIOPHARMACEUTICAL BREAKDOWN WITH FREE TECHNETIUM. -RADIOPHARMACEUTICAL COLLOID FORMATION. -RENAL-NORMAL -URINE CONTAMINATION -VASCULAR CALCIFICATION-ESPECIALLY FEMORAL ARTERY. 16.SKIN AND SUBCUTANEOUS TISSUE UPTAKE -CARDIOVERSION -CELLULITIS -ELECTRICAL BURNS -INFILTRATED INJECTION -SPINAL CORD INJURY. -SURGICAL WOUND OR SCAR -URINE CONTAMINATION -VASCULAR CALCIFICATION-ESPECIALLY FEMORAL ARTERY 17.SKELETAL MUSCLE AND PERIARTICULAR UPTAKE -CARDIOVERSION -ELECTRICAL BURN -MUSCLE TRAUMA -MYOSITIS OSSIFICANS -PERIPHERAL VASCULAR DISEASE WITH ISCHEMIA -RHABDOMYOLYSIS (E.G., ALCOHOLISM) 18.INCREASED GENITOURINARY UPTAKE -IDIOPATHIC -NORMAL -POOLING IN CALYCES -URINARY TRACT OBSTRUCTION. 19.INCREASED RENAL UPTAKE-FOCAL -NORMAL -POOLING IN CALYCES -URINARY TRACT OBSTRUCTION 20.SPLENIC UPTAKE -HEMOSIDEROSIS -SICKLE CELL DISEASE 21.PULMONARY UPTAKE -ANY CAUSE OF METASTATIC CALCIFICATION -FIBROTHORAX -METASTASES (E.G., OSTEOGENIC SARCOMA) -PLEURAL FLUID -PRIMARY LUNG TUMORS (E.G., LUNG CARCINOMA) -RADIATION THERAPY. 22.GASTROINTESTINAL UPTAKE -FREE PERTECHNETATE 23.BREAST UPTAKE -BREAST CARCINOMA -CHRONIC CYSTIC MASTITIS -MASTOPLASIA -NORMAL -POSTMASTECTOMY 24.THYROID UPTAKE -FREE PERTECNATATE -NORMAL (LOWER NECK UPTAKE) 25.EXTRAOSSEOUS UPTAKE IN A PEDIATRIC PATIENT -CALCIUM GLUCONATE INFUSION -DYSTROPHIC CALCIFICATION (E.G., CALCINOSIS UNIVERSALIS, FAT NECROSIS, HEMATOMA, DISK, POSTSURGICAL) -INFARCTION (E.G., CEREBRAL, MYOCARDIAL, SPLENIC) -INTRAMUSCULAR INJECTION SITES. -MALIGNANT EFFUSION -POSTRADIATION -TUMOR (E.G., HAMARTOMA, NEUROBLASTOMA, METASTATIC OSTEOSARCOMA) 26.EXTRAOSSEOUS CHEST UPTAKE IN A PEDIATRIC PATIENT -CARDIAC INJURY INFARCTION PERICARDITIS TOXICITY TRAUMA -HYPERPARATHYROIDISM -IDIOPATHIC PULMONARY CALCIFICATION -MYOSITIS -POSTSURGICAL -TUMOR MESENCHYMOMA METASTASIS (ESP. OSTEOGENIC SARCOMA) NEUROBLASTOMA PLASMA CELL GRANULOMA TERATOMA 27.DIFFUSELY INCREASED THORACOABDOMINAL (LOWER THORAX AND/OR UPPER ABDOMEN) UPTAKE -METASTASES -METASTATIC CALCIFICATION -PLEURAL EFFUSION -RADIOPHARMACEUTICAL PROBLEM -RECENT LIVER-SPLEEN SCAN -SICKLE-THALASSEMIA AND FUNCTIONAL ASPLENIA 28.CUP DEFECT IN BLADDER -POSTPROSTATECTOMY *SKELETON CLINICAL APPLICATIONS* *SKELETON-USEFUL TIPS* * SKELETON * |