The fundamental myocellular uptake and retention mechanisms of hexakis (2-methoxyisobutyl isonitrile) technetium(I) (Tc-MIBI), a technetium-99m-based myocardial perfusion imaging agent, are unresolved. Because of the lipophilic cationic nature of Tc-MIBI, it may be distributed across biological membranes in response to transmembrane potential. To test this hypothesis, net uptake and retention o...

We show for the first time that imaging of osteoarthritic subchondral bone with 99mTc-sestamibi (MIBI) may be a valuable diagnostic tool to assess the severity of subchondral sclerosis. This is a report on a patient who had osteoarthritis of both knees and where MIBI was accumulated in the lesion sites. Due to the accumulation of MIBI in the bone, we believe that excessive stress had been appli...

Two cases of brown tumor of the humerus caused by ectopic parathyroid adenomas were presented, which to our knowledge has not been previously documented in the international literature. There are two highlights in these two cases. First, brown tumors of the long bones may commonly involve femur and tibia, rarely involve humerus in association with primary hyperparathyroidism. Second, ectopic pa...

PURPOSE The present a novel adenocarcinoma model in athymic mice. METHODS Seven athymic mice were used. Colon diversion and distal fistula were made. Adenocarcinoma cells were inoculated in the submucosa of fistula. Tumor growth was monitored daily. Scintigraphy with 99mTc-MIBI was performed to identify the tumor. RESULTS The model of distal colon cancer is feasible. Tumor detection was pos...

Vitamin D deficiency is nowadays very common in the general population and also in patients with primary hyperparathyroidism. Hypovitaminosis D may modify the clinical features and the severity of primary hyperparathyroidism. We present the case of a 75-year-old woman with a 10 year history of nephrolithiasis and severe osteoporosis, with multiple fragility fractures. Her bone and kidney status...

Since its first description in 1922, the incidence and pathophysiologic significance of myocardial bridges has remained controversial due to the relatively small size and retrospective design of most studies. We assessed the incidence and clinical consequence of myocardial bridges in 2547 patients undergoing coronary arteriography over a 16-month period at our medical center. Of the 511 patient...

Various endocrine manifestations are commonly described in myotonic dystrophy (MD), including primary hypogonadism, diabetes mellitus, and thyroid and parathyroid dysfunction. We describe a 46-year-old woman with a family history of MD with her son. She was diagnosed with cardiac arrhythmia and required the implantation of a pacemaker. She was noted to have a bilateral cataract. She complained ...

Anti-acne herbal formulations are used for the treatment of acne vulgaris with the added advantage of not producing adverse effects unlike synthetic drugs. Phytoconstituents present in methanolic extracts of Camellia sinensis (CSME), Glycyrrhiza glabra (GGME) and Calendula officinalis (COME) have antibacterial and antioxidant properties. Validated HPTLC fingerprinting confirmed the presence of ...

OBJECTIVE Comparison of 201Tl chloride SPECT (TI-SPECT) with 99mTc-MIBI SPECT (MIBI-SPECT) in the depiction of malignant head and neck tumors was prospectively studied. METHODS Forty-one patients with various tumors of the head and neck were included in this prospective study. Histologically, 36 patients had squamous cell carcinomas, 3 undifferentiated carcinomas, 1 transitional cell carcinom...

Primary hyperparathyroidism (PHP) affects 0.5%-1% of the adult population and presents with classical signs of renal lithiasis, cholecystolithiasis, gastrointestinal ulcerations, depression, and osteoporosis. Parathyroid adenoma, hyperplasia and rarely carcinoma are the underlying pathology. Synchronous thyroid and parathyroid pathologies are described in multiple endocrine neoplasia. We report...