Extraordinarily Elevated Ca19-9 in Benign Conditions: A Case Report and Review of the Literature

Carbohydrate antigen CA19-9 is commonly used in the diagnosis of pancreatic and biliary malignancies. However, increases in its level in benign conditions such as acute cholangitis or pancreatitis have also been reported. A 79-year-old woman presented with cholangitis and a pancreatic pseudocyst while showing elevation of CA19-9 up to 35,500 U/mL. The patient was adequately treated and at two months’ follow-up the CA19-9 level had returned to normal.

Calcium level may be a predictive factor for pseudocyst formation after acute pancreatitis

Pancreatic pseudocysts (PPs) are defined as fluid collections more than 4 weeks old that are surrounded by a nonepithelial wall of fibrous or granulation tissue. Many risk factors have been associated with pseudocyst development but predictive factors remain to be explored. The aim of this study was to investigate the clinical, and biochemical parameters that may predict the development of a PPs after an attack of acute pancreatitis (AP). The medical charts of 102 patients diagnosed with AP were enrolled into the study. Demographic, clinical and laboratory details were recorded at admission and at the 48(th) hour. There were several risk factors on admission and at the 48(th) hour that was predictive of PP formation when evaluated by univariate analysis such as: Alanine aminotransferase level at 48 hrs, calcium level at admission, base excess at 48 hrs, calcium level at 48 hrs, and albumin level at 48 hrs. In multivariate analysis, low calcium level at admission was the only variable that was shown to predict formation of PPs. Lower serum calcium level may be a predictive factor for the development of PPs after AP attack. We advise that patients with calcium levels below 8 mg/dl, after AP should be followed more closely.

[DYNAMICS OF CHANGES OF PROINFLAMMATORY AND ANTIINFLAMMATORY CYTOKINES, AS WELL AS SOME INDICES OF THE BLOOD PEROXIDATION SYSTEM, IN THE PATIENTS WITH VARIOUS PANCREATIC PSEUDOCYST TYPES]

The investigation was performed in 47 patients, operated on for pancreatic pseudocysts (PP). The PP type was established in accordance to A. D'Egidio, M. Schein (1991) classification. The blood plasma contents of proinflammatory and antiinflammatory cytokines, including interleukins (IL): IL-6, IL-8, IL-10, IL-18, as well as malonic dialdehyde and activity of glutationperoxidase, were determined for estimation of the immune state disorders. Mostly expressed changes in IL-8 content were registered in complicated PP in 72 h postoperatively, what was have characterized by more expressed raising of its level in systemic blood flow, than in a splanchnic one, in all types of PP and witnessed a hepatic capacity to guarantee a cytokine's clearance in all the patients. The contents of glutationperoxidase and IL-18 in the blood serum in various types of PP have correlated immediately with pancreatitis severity. Close correlative connection between these indices while unfavorable prognosis of postoperative period course was established.

[Acute pancreatitis in pediatric age: our experience in 52 cases]

AIM

The aim of this study was to report our experience about clinical presentation and management in children with mild and sever acute pancreatitis (PA).

METHODS

At the onset of clinical manifestations the following laboratory and instrumental tests were performed to all patients: abdominal ultrasonography, measurement of blood amylase and lipase and PCR; preventive antibiotic therapy, gabexate mesylate and proton pump inhibitors were also administrated to all patients. During the follow-up CT and dosage amylase and lipase in blood were performed.

RESULTS

Results summarize data of 52 patients with suspected diagnosis of acute pancreatitis admitted to our hospital within 24 h of symptoms (from January 2008 to December 2011). Age ranged between 4-18 years, and the study included 30 females and 22 males. According to Santorini Consensus Conference, 40 patients were defined having a mild and 12 a severe pancreatitis. All patients with mild PA underwent a medical and/or surgical treatment (endoscopic retrograde cholangiopancreatography, laparoscopic cholecystectomy); there were 2 fatalities between patients with severe PA and 2 cases of pancreatic pseudocyst treated with guided CT drainage and therapy with octreotide. All patients had abdominal pain but the location, severity and duration of pain were extremely variable. Blood dosage of amylase was altered in 83% of cases and of lipase in 100%. Ultrasonography showed abnormalities in 89% of the patients and TC showed alterations of pancreatic parenchyma in 100% of the cases when performed at 48 h.

CONCLUSION

In absence of randomized controlled studies, systematic review or guidelines for diagnosis and management of PA in pediatric age we used our experiences on adult patients, aware of this approach limitation.

[Diagnosis of purulent-necrotic complications of pancreatic pseudocysts]

The data on causes and rate of purulent-necrotic complications (PNC) occurrence of pancreatic cysts (PC) are adduced. Difficulties of these complications diagnosis and treatment were noted. Diagnostic markers for the PC PNC course and the treatment efficacy were proposed.

Autoimmune pancreatitis with pseudocysts

A 47-year-old woman was admitted to our hospital with complaints of fever, upper abdominal pain, and back pain. The serum amylase, C-reactive protein (CRP), and IgG (especially IgG4) were elevated, and abdominal computed tomography (CT) revealed diffuse enlargement of the pancreas and pseudocysts. Endoscopic retrograde pancreatography (ERP) revealed diffuse irregular narrowing of the main pancreatic duct. Histopathological examination of the pancreatic tissue showed fibrotic change with lymphocytic infiltration. Based on these findings, we diagnosed this case as a case of autoimmune pancreatitis. This case also fully satisfied the diagnostic criteria for autoimmune pancreatitis established by the Japan Pancreas Society in 2002. Few reports have been published on cases of autoimmune pancreatitis complicated by the formation of pseudocysts in the pancreas. We, therefore, report this case here to emphasize that cases of autoimmune pancreatitis can be complicated by the development of pseudocysts.

Serum amylase and lipase alone are not cost-effective screening methods for pediatric pancreatic trauma

BACKGROUND

Injury to the pancreas is rare in pediatric trauma. Identification of pancreatic injury relies on clinical, radiographic, and laboratory data. Serum screening for pancreatic injury frequently is used but has not proven to correlate well with pancreatic injury. This study investigated utility and cost effectiveness of serum assessment of amylase and lipase.

METHODS

A retrospective study of 1,821 pediatric trauma patients over 64 months was conducted. A total of 293 (16%) of these patients suffered trauma to the torso 195 (11%) of whom had confirmed intraabdominal injury. Eight pancreatic injuries (4% of abdominal injuries) were identified; 5 underwent surgery for pancreatic ductal injury. One patient not operated on had a pseudocyst that required late drainage.

RESULTS

Serum amylase or lipase levels (AMY/LIP) were measured in 507 (28%) patients. A total of 116 (23%) had elevated AMY/LIP levels. Six of 8 with proven pancreatic injury underwent AMY/LIP testing; 5 had elevated values. Forty-eight percent of patients with elevated AMY/LIP levels had no evidence of intraabdominal injury. Seventy-four of 116 (64%) with elevated AMY/LIP levels underwent abdominal and pelvic computed tomography (CT) scanning, yet 38 (51%) of these had completely normal scans. Many patients with elevated AMY/LIP levels (cost, $6 per test) underwent screening CT scans (cost, $592 per test) based on AMY/LIP alone. No patient with elevated AMY/LIP levels but without clinical suspicion was proven to have pancreatic injury. Cost data are presented.

CONCLUSIONS

Serum amylase and lipase determinations may support clinical suspicion in the diagnosis of pediatric pancreatic trauma but are not reliable or cost effective as screening tools. Costs incurred from routine serum amylase and lipase or from imaging tests subsequent to elevated serum values may be significant and unjustified.

Three truncated forms of serum albumin associated with pancreatic pseudocyst

Plasma from a patient with chronic pancreatic pseudocyst showed an additional more negative albumin band (18%) on agarose gel electrophoresis. Both components bound (63)Ni(2+), indicating intact N-terminals; however, electrospray ionisation analysis of the intact proteins showed the mass of more negative albumin was 1254 Da less than the control and that the apparently normal band was 112 Da less. Reverse phase mapping and mass analysis of CNBr peptides showed three proteolytically modified forms of the C-terminal peptide indicating that some 81% of the albumin molecules lacked the C-terminal Leu residue, that 18% lacked the C-terminal KKLVAASQAALGL and that approximately 1% lacked the QAALGL sequence. These findings were further verified by tryptic mapping of the aberrant CNBr peptides. The truncations probably result from exposure of the albumin to 'leaking' pancreatic endo and exoproteases. During less acute phases of the disease, the 13 and 6 residue truncated forms together decreased to less than 1%, while the des-Leu(585) form made up the balance; no normal albumin was detected. This suggested that the des-Leu(585) form might be present at low levels in the plasma of normal individuals and CNBr mapping confirmed that it constituted 4-15% of the albumin from normal plasma.

[Bisalbuminemia disclosing primary hyperparathyroidism with fistulized pancreatic false cyst]

Discovery on a protein electrophoregram of a bisalbuminemia can orientate according to its migration fast or slow to an hereditary mutation of an amino acid, or an acquired form by excess of beta lactamines due to renal insufficiency or by the rupture of a pancreatic pseudocyst in the peritoneum. This is this late mechanism that we report in this case of bisalbuminemia related to an opened pancreatic pseudocyst secondary to an adenoma of the parathyroid gland.

Acute pancreatitis complicating a bone marrow harvest

A patient developing acute pancreatitis with pseudocyst formation after an uncomplicated bone marrow harvest is reported. The diagnosis was confirmed by elevated serum amylase and lipase, and by CT scan. We suggest that the pancreatitis may have been precipitated by spasm of the sphincter of Oddi secondary to opiates administered as premedication and for pain relief.

Serum tumor markers and cyst fluid analysis are useful for the diagnosis of pancreatic cystic tumors

BACKGROUND

This study was performed to evaluate the utility of serum and cyst fluid analysis for enzymes (amylase and lipase) and tumor markers (carcinoembryonic antigen, CA 19-9, CA 125, and CA 72-4) in the differential diagnosis of cystic pancreatic lesions.

METHODS

Serum and cyst fluid were obtained from 48 patients with pancreatic cysts (21 pseudocysts, 14 mucinous cystic neoplasms, 6 ductal carcinomas, and 7 serous cystadenomas), observed between 1989 and 1994.

RESULTS

Serum CA 19-9 levels were significantly higher in ductal carcinomas (all > 100 U/mL) and mucinous cystic neoplasms (P < 0.05). CA 72-4 cyst fluid levels were significantly higher in mucinous cystic tumors (P < 0.005), with 95% specificity and 80% sensitivity in detecting mucinous or malignant cysts. A combined assay of serum CA 19-9 and cyst fluid CA 72-4 correctly identified 19 of 20 (pre-) malignant lesions (95%), with only 1 false-positive result (3.6%). Cytology showed a sensitivity of 48% and specificity of 100%.

CONCLUSIONS

Any pancreatic cyst with high serum CA 19-9 values, positive cytology, or high CA 72-4 in the fluid should be considered for resection.

The clinical challenge of multiple pancreatic pseudocysts

To evaluate the frequency of multiple pancreatic cysts, the likelihood of preoperative diagnosis, and therapeutic outcome, we retrospectively reviewed the records of 157 patients who underwent operation for pancreatic pseudocysts at 2 institutions between 1970 and 1992. Multiple pseudocysts were found in 29 (18.5%). The 8 women and 21 men ranged in age from 21 to 79 years. The etiology was alcohol abuse in 15 (52%), biliary tract disease in 6 (21%), alcohol abuse and biliary tract disease in 3 (10%), and a variety of other causes in the remaining 5 (17%). There was no difference in age, sex, race, etiology, or presenting signs and symptoms between patients with single pseudocysts and those with multiple cysts. Serum amylase levels were significantly higher in patients with multiple cysts compared to those with single cysts (P < 0.05). Computed tomography accurately demonstrated the extent of disease in 20 of 25 patients (80%), while 1 or more cysts were missed in 5 (20%). The mean number of cysts per patient was 2.7, with a range of 2 to 5. Average pseudocyst diameter was 7.8 cm, with a range from 3 to 20 cm. Multiple internal drainage procedures were performed in 19 patients, a combination of internal and external drainage in 6, external drainage in 1, and resection of multiple cysts in the tail in 2. There was no operative mortality. With a mean follow up of 38.5 months, only 1 recurrent pseudocyst has been found. There were six attempts at percutaneous drainage in six patients. Two of these patients were referred to our institution following failure of percutaneous drainage at other hospitals. Three other patients had residual symptomatic pseudocysts following percutaneous drainage at our hospitals and then underwent multiple internal drainage. The sixth patient refused operative drainage despite the persistence of residual symptomatic pseudocysts after attempted percutaneous drainage. The incidence of multiple pseudocysts (18.5%) is higher than previously reported. There is no difference in the clinical features of patients with single versus multiple pseudocysts. Patients with multiple cysts have higher serum amylase levels. Preoperative computed tomography underestimated the number of cysts in 20% of patients. Careful intraoperative exploration is still needed to avoid missing multiple pseudocysts. Internal drainage is the preferred therapy. A thorough search for multiple cysts at the initial operation should eliminate one potential cause for pseudocyst recurrence.

Cystic neoplasms of the pancreas: problems in differential diagnosis

From 1970 to 1990 we observed 18 patients with histologically proven pancreatic cystic tumors. The average duration of symptoms prior to diagnosis was 14.1 months. A presumptive diagnosis was made preoperatively in nine patients. CT-guided fine needle cytology performed in three cases correctly showed a benign lesion in one patient and malignancy in two patients. Amylase and tumoral marker levels (CEA, CA19-9) were low in cystic fluid of two patients with cystadenomas who underwent preoperative percutaneous aspiration. Intraoperative biopsy of the cystic wall failed to detect epithelial lining in two cases; one patient had internal drainage for cystadenocarcinoma mistaken for pancreatic pseudocyst. Sixteen patients underwent surgery, two of whom died. Of the seven patients with a malignant condition, resection for cure was performed on three. The preoperative diagnosis of these very rare tumors remains difficult. Fine-needle cytology and cystic fluid examination may be a promising technique, but resection of all suspected lesions, whenever possible, is the procedure of choice for diagnosis and treatment.

Somatostatin analogue in treatment of coexisting glucagonoma and pancreatic pseudocyst: dissociation of responses

After an acute episode of pancreatitis, a 63-year-old man was found to have a pancreatic glucagonoma. The tumor was resected without evidence of metastases. Three years later he had symptoms of uncontrolled diabetes, no skin lesions, and diarrhea and was found to have a pancreatic pseudocyst and multiple hepatic metastases. Glucagon concentrations were raised but were suppressible by glucose and somatostatin and responded to arginine stimulation. He was treated for 6 months with octreotide (Sandostatin), which reduced his symptoms; the pseudocyst resolved, but liver metastases continued to grow. Although spontaneous resolution of the pseudocyst is possible, this case appears to illustrate differences in sensitivity of endocrine and exocrine tissues to suppression by Sandostatin.

Postoperative pancreatitis

Our experience with 52 patients who had postoperative pancreatitis develop during a nine year period was reviewed to characterize this group, to determine the incidence of complications and to identify variables predictive of complications. Biliary tract procedures (n = 10), colectomy (n = 9) and intestinal resection (n = 9) were the most frequently performed operations preceding pancreatitis. Thirty of the procedures were near the pancreas. Pancreatitis was detected within seven days of the operation in 26 of the patients. Sixteen patients had complications related to the pancreas, 12 had other nonlethal complications and nine died. Fourteen patients had severe pancreatitis (greater than or equal to 3 Ranson's criteria) and were more likely to have a complicated course (p less than 0.05). Complications related to the pancreas included pancreatic pseudocyst (n = 9), abscess (n = 4), fistula (n = 2) and arterial hemorrhage (n = 1). Age, operation performed, serum amylase level and frequency of hypotension, renal failure and other complications were similar in patients with and without complications related to the pancreas. A high index of suspicion must remain throughout the postoperative period to recognize inflammation of the pancreas and its complications so that prompt diagnosis and management can be undertaken.

The poor man's isoamylase analysis (wheat inhibitor). Does it work?

The value of a wheat inhibitor assay to measure the pancreatic isoamylase fraction in the serum was evaluated in a clinical trial. Fifty-four patients with a variety of disorders and wide range in serum amylase levels were studied comparing pancreatic isoamylase levels measured by both cellulose acetate membrane electrophoresis and wheat inhibitor assay. The overall correlation was excellent (r = 0.96), and was best when the total serum amylase was high. The predominate serum isoamylase was correctly predicted in 45 of 54 (83%) patients, with an overall specificity of 73 per cent and sensitivity of 96 per cent. Because it is easy to perform, the test is recommended for clinical use by those without access to more sophisticated forms of isoamylase analysis.