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Chronic recurrent hemarthrosis, defined as repeated intra-articular hemorrhage, can lead to a disabling arthropathy. We herein report on a 26-year-old patient presenting with recurrent, postoperative, serious knee hemarthrosis refractory to conventional treatment, including systemic and intra-articular steroid injections as well as chemical synovectomy with osmic acid. The patient was finally treated with a twice performed knee radiosynovectomy with yttrium-90 and showed an extraordinary good clinical outcome with a symptom-free period of 4 years. In cases of refractory hemarthrosis, radiosynovectomy should have a place in the therapeutic armamentarium of the treating physician, as a minimally invasive, safe, and efficient therapeutic tool.A 38-year-old female presented with recurrent episodes of hypoglycemia for 5 years. On 72-h fast test, critical sample biochemistry was suggestive of endogenous hyperinsulinemic hypoglycemia. Both constrast-enhanced computed tomography and 68Ga-DOTATATE positron emission tomography/computerized tomography (PET/CT) revealed no pancreatic lesion but showed a jejunal lesion suggestive of neuroendocrine tumor (NET) but not confirmatory of insulinoma. 68Ga-Exendin-4 PET/CT showed intense uptake in the proximal jejunum, and this being a specific scan for insulinoma, confirmed it as an ectopic insulinoma. The patient attained normoglycemia after excision of this NET confirming it to be a case of ectopic insulinoma located in the jejunum. Although most insulinomas are located in the pancreas, rarely ectopic cases have been described in the spleen, perisplenic tissue, duodenohepatic ligament, adjacent to the ligament of Treitz, duodenum, and the jejunum. Functional scanning with 68Ga-Exendin-4 PET/CT scan aids the localization of ectopic insulinoma.Neurolymphomatosis (NLS) is infiltration of lymphoma cells into the peripheral or cranial nervous system and is a rare manifestation of non-Hodgkin lymphoma (NHL). Nerve biopsy is considered as the gold standard for diagnosis but not a preferred choice, and magnetic resonance imaging has lower reported sensitivity. 18F-Fluorodeoxyglucose (18FDG) positron-emission tomography and computerized tomography (PET/CT) has a higher sensitivity for diagnosing and assessing the neurological and nonneurological metabolic tumor volume and response evaluation to therapy. We present the case of a lady, known to have NHL in remission. She presented with a short history of severe pain and weakness of the right lower limb. Baseline and interim 18FDG PET/CT played a crucial role in diagnosing and assessing the extent of NLS and nonneurological disease burden and also in evaluation of response to treatment.In patients with well-differentiated papillary thyroid carcinoma (PTC), late recurrence is very rare. It is unusual that 18F-fluorodeoxyglucose positron-emission tomography/computed tomography (PET/CT) shows hypermetabolic lesions in patients with well-differentiated PTC metastases. We demonstrate an exceptional case exhibiting a first relapse 37 years after hemithyroidectomy to treat PTC. Recurrent metastasis of a PTC should be considered as a differential diagnosis even if the elapsed time from the initial treatment is great. A left cervical lymphadenopathy, which exceptionally exhibited a hypermetabolic lesion on PET/CT, should be considered a metastatically well-differentiated PTC.We report a case who presented with facial swelling and breathlessness. Recent chest X-ray was suggestive of soft-tissue in the mediastinum. In view of the suspicion of mass being neoplastic, the patient was referred for positron emission tomography-computed tomography (PET-CT) scan. Whole-body fluorodeoxyglucose (FDG) PET-CT scan revealed a mildly FDG-avid large lobulated soft-tissue mass in the anterior mediastinum, seen to arising from right lobe of the thyroid gland, extending into the right hemithorax. Histopathological examination of the mass was compatible with adenomatous hyperplasia of the thyroid. Here, we report an unusual case of isolated single lobe hyperplasia of the thyroid gland, masquerading as an anterior mediastinal mass.We report the case of a 43-year-old male patient, who presented with severe osteoporosis and pain at multiple sites and a chest X-ray suggestive of few cystic lesions in bilateral ribs. https://www.selleckchem.com/products/ly333531.html Subsequently, the patient was referred for bone scan, in view of the suspicion of polyostotic fibrous dysplasia or neoplastic lesions. Bone scan showed homogenously increased tracer uptake in the axial and appendicular skeletal system, suggestive of metabolic superscan. Computed tomography neck localized right inferior parathyroid adenoma and expansile lytic skeletal lesions suggestive of brown tumors were also seen. This case highlights the importance of bone scan, helping in the differential diagnosis of multiple skeletal lesions.Oncogenic osteomalacia is a rare condition, with overproduction of fibroblast growth factor 23, leading to hypophosphatemia, phosphaturia. If it is associated with benign mesenchymal tumor, then resection of tumor is curable. Thus, detection and localization of the lesion are of utmost importance. We report a case, where 18F-FDG PET/CT scan was useful in detection of such occult lesion.Tc-99m methylene diphosphonate bone scintigraphy (bone scan) is a highly sensitive technique for the evaluation of osseous pathology. However, the nonspecificity of the method can present diagnostic challenges in differentiating benign from malignant processes. Often, Paget's disease and osseous metastasis can coexist in elderly patients. Therefore, it is important to accurately distinguish the two pathologies, as each has a different prognosis and impacts clinical management. Obtaining the appropriate clinical diagnosis often involves a combination of laboratory, radiographic, and clinical data. We present a case of newly diagnosed prostatic carcinoma presenting with synchronous osseous metastasis, degenerative changes, and incidental multifocal Paget's disease.Two patients of differentiated thyroid carcinoma are illustrated demonstrating "sink effect" in posttherapeutic and diagnostic radioiodine (I-131) study (a) in the first case, it masked the other small-volume metastatic sites (pulmonary and paratracheal nodes) in the posttreatment scan, which were clarified following metastatectomy of the large-volume skeletal metastatic lesion, and (b) in the second, interestingly, it masked the remnant thyroid uptake in the first postoperative diagnostic radioiodine study. In both the situations, large-volume highly functioning skeletal metastasis was the cause for the observed "sink effect" and is presented as learning illustrations to the attending physicians. Although uncommon, this is a possible phenomenon in thyroid cancer practice.
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