superscan bone scan

Diffuse tracer uptake in the axial skeleton pelvis and proximal long bones with lack of tracer activity in the distal long appendicular skeleton as well as the kidneys and bladder. The appearance of the bone scan is consistent with a metabolic superscan in this case due to secondary hyperparathyroidism renal osteodystrophy.

Renal Osteodystrophy Metabolic Superscan Radiology Case Radiopaedia Org

Whole-body bone scintigraphy bone scan using a 99m Tc-labelled pharmaceutical is one of the most commonly performed radionuclide examinations.

. In contradistinction a metastatic superscan will. Gleason score was 54 and PSA at diagnosis was 419 μgl. Superscan is a state of the art radiology and nuclear medicine group which offers patients the best technology in CT Nuclear Medicine X-Ray Ultrasound and Bone Mineral Densitometry.

Bereiche mit einem erhöhten Knochenstoffwechsel Herde finden sich beispielsweise bei Knochenmetastasen im Rahmen. Superscan offers the following services to patients. Nuclear Medicine eg.

Authors S M Manier D Van Nostrand. The bone scan images show skeletal involvement of the skull ribs spine and pelvis. A superscan is defined as a bone scan which demonstrates markedly.

The findings are consistent with Super Scan due to extensive osteoblastic metastasis. Recognition of the superscan in prostatic bone scintigraphy Br J Radiol. Metabolic superscan MSS was noted in 90 of the Graves cases 20 in TNG and in none of the AT group.

A super bone scan may result from a widespread skeletal process in. It may occur in widespread metastatic. There were no significant differences regarding Ca AP and PTH between the Graves and non-Graves groups p 005.

Anterior and posterior images of a whole body bone scan of a 42-year-old male diagnosed at the age of 41 with adenocarcinoma of the prostate gland. Adequate evaluation of a bone scan requires clearance of the radiotracer from the soft tissues by the kidneys so that the image produced is composed mostly of gamma rays originating from Tc99m-MDP complexed with the hydroxyapatite of bone. Bone scan genannt ist ein nuklearmedizinisches bildgebendes Verfahren Szintigrafie das zum Nachweis von Knochen-Anteilen mit einem erhöhten Knochenstoffwechsel dient.

101016s0001-29988480055-0 No abstract available. National Center for Biotechnology Information. The article discusses the superscan phenomenon on bone scintigraphy in detecting skeletal metastases in prostate cancer PC patients.

A super scan in scintigraphy is defined as intense symmetric radiotracer activity in the bones increased bone. The follow up bone scan shows uniform increased density of the axial and proximal appendicular skeleton resulting in excellent bone detail. Case Discussion The pattern of diffuse increased skeletal uptake with no tracer seen in the kidneysbladder is called a superscan.

The previously seen multiple discrete lesions are no longer appreciable. Die Skelettszintigrafie auch Knochenszintigrafie engl. The superscan effect presents a technical challenge in the evaluation of lesions on bone scans in prostate cancer clinical trials.

Prostate cancer 4680 was the most common cause of superscan appearance followed by breast cancer 1080. Example of images obtained on one scan with different CT weightings. The overall incidence of superscan in different type of cancers was 13 806027.

In the normal patient both the osseous components of the skeletal system as well as the kidneys and bladder are visualized. The scans are recognizable by the high ratio of bone to soft tissue activity the absence of focal lesions in the axial sk. Out of 6027 patients referred for bone scan 307 patients.

In bone imaging the term superscan has been used to describe the appearance of high skeletal uptake of radionuclide combined with low background activity Osmond etal 1975. Super bone scan is a special condition of extremely high bone uptake relative to soft tissue with absent renal radioactivity visualisation absent kidney sign1 About 4060 of the injected Tc-99m MDP is excreted in the urine2 Therefore significant renal and bladder radioactivity are normal in most scans. Quantitation using total counts recorded directly from the whole-body bone scan showed a significantly raised value in the superscan group only.

Disturbances in bone metabolism are more prevalent in Graves disease than in other types of hyperthyroidism. Although a superscan can occur in a broad range of conditions both malignant and metabolic the vast majority are due to high volume bony. Two years after the first.

This type of scan results in the characteristically high. Bone scans myocardial perfusion studies MIBIstress tests thyroid uptake studies renal studies HIDA lymphoscintigraphy and sentinel node mapping VQ scans. Superscan provides patients with highest quality pictures at the lowest possible radiation dose and is also home to the worlds lowest radiation dose and most advanced CT scanner the.

If the kidneys are not functioning properly the visualization of bone is limited by overlying extraosseous activity in. A Sub-superscan is a term used for scan findings in which the up-take is atypical of a superscan but the patient has extensive bone metastases as presented in our case report. This appearance has been associated with two main pathological groups.

It is usually accompanied by absent or faint renal activity Sy et al 1975. Could be misinterpreted as a normal bone scan. The addition of the bone.

There is however no significant renal or soft tissue activity. Superscans on bone scintigraphy have been described mostly in metastatic and metabolic bone diseases with different patterns and appearances of radiotracer uptake. Super bone scan Semin Nucl Med.

Soft tissue uptake ratio. Total of 6027 bone scans were examined in a 5-year period and out of which 80 cases were diagnosed as superscan. Qualitative comparison showed patterns of avid bone uptake with diminished visualization of kidney and bladder activity in the superscan group and normal scans in the control and prostate patient groups.

Publication types Case Reports MeSH terms. Authors A R Constable R W Cranage. Superscan Bone scintigraphy Diffuse bone metastasis 99mTc- HMDP Marrow infiltration Corresponding Author.

A superscan is a bone scan which exhibits diffuse skeletal uptake of the radiopharmaceutical agent with little to no uptake within soft tissue including the kidneys and bladder. A superscan is a term given to the appearances on a nuclear bone scan when bony uptake of Tc99m disphosponate is so profound that the usual physiological uptake observed in the kidneys is no longer apparent. When analyzing published reports we found only one large.

He subsequently had a scrotal orchidectomy and received 30Gy of. 1012590007-1285-54-638-122 Abstract Widespread bone. This is a report of bone scintigraphy demonstrating superimposed metastatic and metabolic superscan in a patient with prostate cancer who subsequently developed renal osteodystrophy.

Note that activity is increased throughout the entire skeleton including the distal appendicular skeleton which is characteristic of a superscan due to metabolic disorders.

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