In the presence of papillary sloughing, CT may depict hydronephrosis and filling defects in the renal pelvis or ureter, which also may contain calcifications. During healing, the epithelialized papillary tip appears blunted. Shrinkage of the kidney, a common sequela, also may be detected at CT Renal medullary nephrocalcinosis is the commonest form of nephrocalcinosis and refers to the deposition of calcium salts in the medulla of the kidney. Due to the concentrating effects of the loops of Henle, and the biochemical milieu of the medulla, compared to the cortex, it is 20 times more common than cortical nephrocalcinosis.. Often (and perhaps unsurprisingly) the same entities may also.
At nonenhanced CT, calcification is seen slightly more often in pRCC than in cRCC. However, the presence or absence of calcification is not of value in making this differentiation (, 21). pRCC enhances to a lesser degree than does cRCC in all phases of postcontrast imaging Pancreatic calcifications are being detected more frequently because of the widespread use of imaging, particularly CT. Pancreatic calcifications are most commonly associated with chronic pancreatitis related to alcohol abuse. Several other pathologic entities, however, can cause pancreatic calcifications
Significance of pancreatic calcification on preoperative computed tomography of intraductal papillary mucinous neoplasms Pancreatic calcification on CT is associated with invasive IPMC. Pancreatic calcification might be a predictor of invasive IPMC. Pancreatic calcification on CT is associated with invasive IPMC The malignancy rate of solitary calcified thyroid nodules detected on CT was 85.4%, and the pathologies were all papillary thyroid carcinomas. Especially when the size of the lesions increased after contrast-enhancement CT, the pathologies were almost malignant Peritoneal calcification was defined as the presence of one or more lesions showing CT attenuation similar to that of bone in an unequivocally intraperitoneal location such as the perihepatic space, perisplenic space, paracolic gutters, Morison's pouch, omental surface, and pouch of Douglas fig 4.. Papillary thyroid carcinoma of the thyroglossal duct. Contrast-enhanced CT at the level of the hyoid bone reveals a cystic and solid mass (small arrows) extending from the anterior hyoid bone to the right lateral neck.Calcifications are identified within the mass (black arrow).A large, heterogeneous mass with calcifications in the posterior right neck (large arrows) represents. Management of patients with hypertrophic obstructive cardiomyopathy (HOCM) and severe mitral annular calcification, can be challenging. Our cases highlight the importance of addressing all elements contributing to the left ventricular outflow tract (LVOT) obstruction in cases of HOCM: hypertrophic basal interventricular septum, abnormal papillary muscles, systolic anterior motion of the.
Papillary renal cell carcinoma demonstrated low stage at presentation in most cases (10 of 13 had stage I or II), had a high frequency of calcification (seven), and had less enhancement (diminished vascularity) than typical hypernephroma on CT scans . 1 and 2) Compared with pseudocysts, however, the calcification involves only a portion of the wall or septation and is curvilinear in appearance. Microcystic adenomas occasionally show stellate calcification within a central fibrous scar on plain films or CT. Dystrophic calcification may occur in solid and papillary epithelial neoplasms CT scans were evaluated for bone erosion and calcification; MR images, for signal intensity, enhancement patterns, and flow voids; and angiograms, for tumoral blood supply. RESULTS: All tumors were destructive and contained calcifications centered in the retrolabyrinthine region at CT
. 1. Description of the renal imaging criteria of analgesic nephropathy as observed on CT scan including a decreased renal volume, bumpy Contours and papillary calcifications. Renal size was measured by the sum of both sides of the rectangle enclosing. Calcification of the splenic artery is generally identifiable by its characteristic linear, tram-track appearance. However, in some cases it can be difficult to distinguish from pancreatic calcification (Fig. 14A, 14B). On CT, dense arterial contrast enhancement in the pancreas can simulate calcifications (Fig. 15A, 15B) This study aimed to estimate the diagnostic value of CT artifacts for solitary coarse calcifications (SCC) in thyroid nodules. A total of 78 SCCs (coarse calcifications >2 mm, no definite mass lesion around calcification) in 63 cases received surgery from Jan 2009 to Jun 2014 were enrolled, including 52 nodular goiters (NG) in 41 cases and 26 papillary thyroid carcinomas (PTC) in 22 cases Psammomatous calcification is common in papillary RCC; however, there is no other report that a specimen without macroscopically palpable calcified lesions radiographically demonstrated massive calcification. Additionally, necrosis, which is common in calcified RCC, was not found in this case Only a few prior reports have described the CT appearance of renal cell carcinomas with fat density that lacked calcifications [9-11]. We report a case of papillary renal cell carcinoma without calcifications and with a distinct focus of mature intratumoral adipose tissue
The objective of this study is to determine in a case series (four patients) how calcified deposits in renal papillae are associated with the development of calcium oxalate monohydrate (COM) papillary calculi. From the recently collected papillary calculi, we evaluated retrospectively patients, subjected to retrograde ureteroscopy, with COM papillary lithiasis . The mitral valve may be involved in various acquired or congenital conditions with resultant regurgitation or stenosis, and many of these conditions can be identified with CT or MR.
Results The COM papillary calculi were found to result from subepithelial injury. Many of these lesions underwent calcification by hydroxyapatite (HAP), with calculus morphology and the amount of.. Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer and be measured with coronary computed tomography (CT), provides information about the presence by neck CT; (4) Mixed calcification (mix of microcalcification and macrocalcification): presence o Stafford-Johnson et al. emphasized three distinct CT features that may distinguish serous surface papillary carcinoma of the ovary from other peritoneal carcinomatosis or peritoneal mesothelioma, including the absence of an ovarian mass and the presence of extensive peritoneal calcification and omental masses with marked omental calcification. Tumors of papillary origin can produce psammoma bodies made of laminated calcifications, and glycoproteins present in mucinous neoplasms, can precipitate calcium , . In the pancreas, tumor calcification has been described in the serous and mucinous cystic neoplasms, solid and pseudopapillary tumors, neuroendocrine lesions and rarely in ductal.
. Although contrast does make it harder to assess, there is no convincing evidence of calcification. The pituitary fossa is unremarkable and the anterior cerebral arteries, although contacted, are not encased. There is no cystic component Calcification. Papillary muscle calcifications are noted in association with multiple entitites. In elderly patients, papillary calcifications in the apical region are within the normal spectrum (Fig. 16); however, diffuse and extensive calcifications are abnormal findings At CT, fat attenuation within a cyst, with or without calcification in the wall, is diagnostic for mature cystic teratoma (, Fig 12b) (, 29, , 30). At MR imaging, the sebaceous component of dermoid cysts has very high signal intensity on T1-weighted images similar to that of retroperitoneal fat
Idiopathic hypercalcuria, one of the common metabolic diseases, also is known cause of nephrocalcinosis. Medullary sponge kidney is a common cause of medullary calcification in which calcium lies in ectatic collecting ducts rather than renal substance. Calcium deposits are larger and more sharply defined than in metabolic disease Extensive papillary muscle calcification is quite a rare finding in echocardiographic examinations. A case of a 71 year old man with isolated calcification of the papillary muscles, detected by fluoroscopy and confirmed by echocardiography, is presented. Intracardiac calcifications in patients with prior right coronary artery occlusion and mitral regurgitation should suggest the possibility of. Renal papillary calcification is a compelling candidate risk factor for chronic kidney disease (CKD) and nephrolithiasis. Renal papillary density (RPD), as assessed by computed tomography (CT), is a potential marker for calcification that has not been well studied. We developed a protocol to measure RPD using CT scans and assessed its reproducibility in participants from the Framingham Heart. Our institution serves a large oncology population, but less than 20% of the CT examinations ordered by the oncology service are for gynecologic oncology patients, and the lack of malignancies other than ovarian or primary papillary serous peritoneal carcinoma causing peritoneal calcification in our series is not likely to be due to merely a.
Preoperative CT revealed pancreatic calcification in 17.2% (27/157) of the resected IPMN. In the univariate analyses, jaundice, high serum carbohydrate antigen 19‐9 levels, and invasive IPMC were significantly associated with pancreatic calcification (4/27 [14.8%] vs 4/130 [3.1%], 0.01; 12/27 [44.4%] vs 31/130 [23.8%], 0.03; and 15/27 [55.6%. . A study published only very recently [ 16 ] showing that the renal papillae of stone formers show a higher density (as measured in Hounsfield units) when compared to control persons On CT, urothelial carcinoma appears as intraluminal papillary or nodular masses or focal wall thickening (Figs. 11.12 and 11.13). In some cases, the intraluminal surface of the tumor may be encrusted with fine calcifications Papillary renal cell carcinoma containing fat without calcification mimicking angiomyolipoma on CT. Schuster TG(1), Ferguson MR, Baker DE, Schaldenbrand JD, Solomon MH. Author information: (1)Department of Urology, University of Michigan, 2917 Taubman Center, 1500 E Medical Center Dr., Ann Arbor, MI 48109-0330, USA
In either case, calcium phosphate minerals are deposited in soft tissues of the body. Certain medical treatments, such as abdominal surgery, can also lead to the development of these calcified masses. Typically, small and asymptomatic calcifications are identified by CT scans of the region Baseline to distinguish calcification and intrinsic hyperattenuation from true enhancement. Alternatively, dual energy CT can be used to create a virtual noncontrast dataset. A: 2. Arterial 77 year old woman with papillary transitional cell cancer of the bladder. Importance of bladder distention Initial evaluation on plain CT showed disproportionately dilated upper pole calyces and urothelial thickening with narrowing of the pelvis with papillary calcifications in the lower pole. Significant perinephric and periureteric fat stranding with locoregional lymphadenopathy was noted . This was followed up by a CT urogram
<P>Background: To compare the abilities of ultrasonography (US) and Computed Tomography (CT) to identify calcifications and to predict probability of.. This difference was significant (P<0.001), and after binary logistic regression, increasing size was an independent risk factor for cancer.Conclusion: Solitary calcified thyroid nodules detected on CT represent a high risk for papillary thyroid carcinoma, especially when the size of the lesions increases after contrast-enhanced CT
CT scan. Papillary calcification. Hyperdense papilla. Ectasia of precaliceal tubules *Findings limited to medullary pyramids. Urography. The diagnosis of medullary sponge kidney is usually confirmed by findings on excretory urography, which reveals radial, linear striations in the papillae Can Calcification Predict 131 Accumulation on Metastatic Lymph Nodes in Papillary Thyroid Carcinoma Patients Receiving I-131 Therapy? Comparison among CT, I -131 WBS, and F-18 FDG PET/CT, LL-NM2027-H03, 8004238, Koichiro Kaneko
Thyroid calcifications on a CT scan can be seen in both benign and malignant thyroid lesions. Sonographic examination of the thyroid can differentiate between micro-calcifications, which are highly associated with papillary thyroid carcinoma, and eggshell calcifications, which favour a benign process such as colloid cysts (Figs. 1 and and2)2) However, there was no significant difference in the diagnostic accuracy rates of US, CT, and combined US/CT in patients with papillary thyroid microcarcinoma (mPTC). 28 We hypothesize that the relationship between calcification size and nodule size may help to distinguish benign from malignant nodules. This hypothesis warrants future study Purpose: To evaluate computed tomography (CT) detection of solitary thyroid calcification for identifying thyroid papillary carcinoma and to determine whether the predictive ability changes when the size increases after enhancement. Materials and methods: CT scans on all 96 patients with thyroid nodules who underwent bot Calcification is common in patients with analgesic-induced papillary necrosis; it has not been reported in patients who have papillary necrosis associated with hemoglobinopathy. Persistent streaking of contrast from the polar fornix is almost diagnostic of renal papillary necrosis Calcification and the Kidneys. Calcification is the abnormal accumulation of calcium salts in body tissue. This abnormal accumulation of calcium in the kidney is referred to as nephrocalcinosis.
Axial unenhanced CT scan shows the fluid density cystic lesion in the pancreatic tail with an area of egg-shell calcification (arrow). There is a separate focus of calcification (arrowhead) which corresponded to the dystrophic calcification within the tubule-papillary adenoma Wu et al 14 showed that thyroid calcification found on preoperative CT may represent an increased risk for thyroid malignancy, and the malignancy rate of peripheral calcification, coarse calcification, single punctate calcification, multiple punctate calcification, and solitary calcified nodules was 22%, 21%, 58%, 79%, and 83%, respectively.
CT examination revealed a 9 x 7 cm fluid-filled lesion, in the lower third of the right kidney. The lesion had a well-defined outline, thickened walls (0.8 cm) with papillary protrusions, and indented the liver without invading it (image 4) Ureteric calcification: this is the 2 nd commonest site of calcification with a typical beaded appearance calcification of the bladder, vas deferens and seminal vesicles is rarely seen Cavitations: these are usually irregular and communicate with the collecting system widespread cavitations may mimic hydronephrosis (but the pelvis and. lymph node metastasis in papillary thyroid carcinoma: a combined dual-energy CT and thyroid function indicators study Ying Zou1,2†, Huanlei Zhang2,3†, Wenfei Li2,4, Yu Guo5, Fang Sun2,6, Yan Shi6, Yan Gong2,7, Xiudi Lu1,2, Wei Wang8 and Shuang Xia5* Abstrac Acute recurrent pancreatitis occurs rarely in individuals with pancreas divisum. A 39-year-old woman with no significant history presented with pancreatitis. CT scan and MRI suggested acute on chronic pancreatitis with calcifications and pancreatic divisum. An endoscopic ultrasound demonstrated complete pancreas divisum. A large calcification measuring 12 mm × 6 mm was seen in the head of the.
A series of patients with calcium stones (n=49) underwent unenhanced spiral CT and complete metabolic evaluation after they consumed a random diet for 1 month after stone removal. Of the 49 patients, 38 patients showed papillary calcification on unenhanced spiral CT and 11 patients did not The MSK papillae are excessively round, enlarged, and billowy (Figure 9). Figure 9 - A papillum in a patient with medullary sponge kidney. The papillae are rounded and enlarged with a billowy appearance. The papillary tips are blunted. No other kind of papillary disease is known to present this appearance which is therefore pathognomonic of MSK
Intraductal papillary mucinous neoplasm (IPMN) complicated with intraductal hemorrhage is rarely seen. To the best of our knowledge, there were only 6 cases of IPMN complicated with bleeding have been reported in English literatures and all of them occurred in the elder people (average age, 70, range, 60-77) with a male gender predisposition (4 males, 2 females) [1, 2] (Table 1) CT On non-contrast CT the lesions appear of soft tissue attenuation. Larger lesions frequently have areas of necrosis. Approximately 30% demonstrate some calcification . During the corticomedullary phase of enhancement, 25-70 seconds after administration of contrast, renal cell carcinomas demonstrate variable enhancement, usually less than the. We report a case of papillary renal cell carcinoma (RCC) radiographically mimicking massive calcification. Case report A left renal mass was incidentally found by computed tomography (CT) during the evaluation of a gastric ulcer in a 53‐year‐old male, and he was referred to the Department of Urology, Hokkaido Kouseiren Kutchan Kousei Hospital Coronary artery calcium (CAC) is present only in atherosclerotic arteries and is a marker of M AN U subclinical atherosclerosis.7 CAC is quantified noninvasively by computed tomography, and the calculated CAC score reflects the presence and extent of atherosclerotic disease
The computed tomography also demonstrated multiple circular low-density shadows After opening the pericardium, the masses were seen. Through the right atrium incision, the tricuspid valve and papillary muscle were covered by four adipose masses in the RV that Pathology of severe coronary artery calcification treated with orbital. papillary tumor of the pancreas. Am J Surg 1999;177:117-20. 27. Fukukura Y, Fujiyoshi F, Sasaki M, et al. Intraductal papillary 34. Sugiyama M, Atomi Y. Intraductal papillary mucinous tumors mucinous tumors of the pancreas: Thin-section helical CT of the pancreas: Imaging studies and treatment strategies. Ann findings 360-Papillary carcinoma:25% to 50% of patients have involvement of cervical lymph nodes at presentation. 361-Psammoma bodies are laminated calcified spheres and are usually diagnostic of papillary carcinoma. 362-Cowden syndrome (eg, multiple hamartomas of the skin and mucous membranes), 363-toxic multinodular goiter, control of the hyperthyroid state with antithyroid drugs followed by 131 I. annular calcification, can be challenging. Our cases highlight the importance of addressing all elements contributing to the left ventricular outflow tract (LVOT) obstruction in cases of HOCM: hypertrophic basal interventricular septum, abnormal papillary muscles, systolic anterior motion of th The usage of Computed Tomography scans has largely contributed in the accurate detection, localization and classification of intracranial calcifications . Even with the introduction of Magnetic Resonance Imaging in the 1990s, CT scan yet proved to be superior in the detection and characterization of brain calcifications Generally, tumours are hypodense compared to the gland and do include calcifications . Calcification of cervical nodes should raise suspicion of papillary carcinoma, which has a propensity for lymphatic spread . CT is best utilised to identify extrathyroidal invasion  and for staging