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Query: UMLS:C0000727 (acute abdomen)
 3,084 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Ancylostoma caninum is responsible for cases with eosinophilic enteritis (EE) and unexplained abdominal pain with peripheral eosinophilia in man. Ninety-five patients with obscure acute or recurrent abdominal pain and ten asymptomatic healthy parasite free were subjected to thorough history taking, clinical examination, sonography, routine laboratory investigations and serotesting by IgG ELISA to detect antibodies to excretory/secretory (ES) antigens of adult A. caninum and by IgG and IgG4 Western blot (W.B.) to detect antibodies to Ac68 antigen. Eleven male patients (11.6%) (5 with acute abdomen, 3 diagnosed as appendicitis and 3 had recurrent mild to moderate abdominal pain) fulfilled the criteria of case definition of human enteric infection with A. caninum (G.I). The study also detected human hookworm infection in 14 patients (G.IIb) other parasites in 34 patients (GIIc) and 36 patients had no parasites (G.IIa). Although 3 patients from group I were diagnosed as appendicitis and were dealt with surgically, the pain recurred and mebendazole only put an end to the patient's complaints. The obtained appendices of these operated cases showed marked eosinophilic infiltration but no adult canine hookworms were detected. IgG ELISA was positive in 72.7%, 8.3%, 100%, 23.5% and 0% in groups and control respectively. IgG and IgG4 W.B. did not increase the sensitivity but IgG4 W.B. elevated specificity to 100% excluding those with HH infection (Group Iib) who showed 100% cross-reactions. Stool analysis was the only differentiation between these two types of hookworms. These findings confirmed the presence of human enteric infection with A. caninum as clinical entity in the study community and referred to its value in differential diagnosis of the obscure abdominal pain.
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PMID:Evaluation of the role of Ancylostoma caninum in humans as a cause of acute and recurrent abdominal pain. 1256 26

We report one case of acute abdomen after the ingestion of raw or undercooked fish containing nematode larvae of the genus Anisakis. Early diagnosis is very important as it could prevent unnecessary surgical procedures since the symptoms of intestinal anisakiasis may mimic other illnesses such as appendicitis, ileitis or peritonitis. We suggest that anisakiasis should be considered in the differential diagnosis of patients with acute abdomen.
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PMID:Intestinal anisakiasis mimicking intestinal obstruction. 1273 35

Acute pelvic pain may be the manifestation of various gynecologic and non-gynecologic disorders from less alarming rupture of the follicular cyst to life threatening conditions such as rupture of ectopic pregnancy or perforation of inflamed appendix. In order to construct an algorithm for differential diagnosis we divide acute pelvic pain into gynecologic and non-gynecologic etiology, which is than subdivided into gastrointestinal and urinary causes. Appendicitis is the most common surgical emergency and should always be considered in differential diagnosis if appendix has not been removed. Apart of clinical examination and laboratory tests, an ultrasound examination is sensitive up to 90% and specific up to 95% if graded compression technique is used. Still it is user-depended and requires considerable experience in order to perform it reliably. Meckel's diverticulitis, acute terminal ileitis, mesenteric lymphadenitis and functional bowel disease are conditions that should be differentiated from other causes of low abdominal pain by clinical presentation, laboratory and imaging tests. Dilatation of renal pelvis and ureter are typical signs of obstructive uropathy and may be efficiently detected by ultrasound. Additional thinning of renal parenchyma suggests long-term obstructive uropathy. Ruptured ectopic pregnancy, salpingitis and hemorrhagic ovarian cysts are three most commonly diagnosed gynecologic conditions presenting as an acute abdomen. Degenerating leiomyomas and adnexal torsion occur less frequently. For better systematization, gynecologic causes of acute pelvic pain could be divided into conditions with negative pregnancy test and conditions with positive pregnancy test. Pelvic inflammatory disease may be ultrasonically presented with numerous signs such as thickening of the tubal wall, incomplete septa within the dilated tube, demonstration of hyperechoic mural nodules, free fluid in the "cul-de-sac" etc. Color Doppler ultrasound contributes to more accurate diagnosis of this entity since it enables differentiation between acute and chronic stages based on analysis of the vascular resistance. Hemorrhagic ovarian cysts may be presented by variety of ultrasound findings since intracystic echoes depend upon the quality and quantity of the blood clots. Color Doppler investigation demonstrates moderate to low vascular resistance typical of luteal flow. Leiomyomas undergoing degenerative changes are another cause of acute pelvic pain commonly present in patients of reproductive age. Color flow detects regularly separated vessels at the periphery of the leiomyoma, which exhibit moderate vascular resistance. Although the classic symptom of endometriosis is chronic pelvic pain, in some patients acute pelvic pain does occur. Most of these patients demonstrate an endometrioma or "chocolate" cyst containing diffuse carpet-like echoes. Sometimes, solid components may indicate even ovarian malignancy, but if color Doppler ultrasound is applied it is less likely to obtain false positive results. One should be aware that pericystic and/or hillar type of ovarian endometrioma vascularization facilitate correct recognition of this entity. Pelvic congestion syndrome is another condition that can cause an attack of acute pelvic pain. It is usually consequence of dilatation of venous plexuses, arteries or both systems. By switching color Doppler gynecologist can differentiate pelvic congestion syndrome from multilocular cysts, pelvic inflammatory disease or adenomyosis. Ovarian vein thrombosis is a potentially fatal disorder occurring most often in the early postpartal period. Hypercoagulability, infection and stasis are main etiologic factors, and transvaginal color Doppler ultrasound is an excellent diagnostic tool to diagnose it. Acute pelvic pain may occur even in normal intrauterine pregnancy. This may be explained by hormonal changes, rapid growth of the uterus and increased blood flow. Ultrasound is mandatory for distinguishing normal intrauterine pregnancy from threatened or spontaneous abortion, ectopic pregnancy and other complications that may occur in patients with positive pregnancy test. Incomplete abortion is visualized as thickened and irregular endometrial echo with certain amount of intracavitary fluid. If applied, color Doppler ultrasound reveals low vascular resistance signals in richly perfused intracavitary area. Transvaginal sonography has high sensitivity and specificity in visualization of uterine and adnexal signs of ectopic pregnancy. Color Doppler examination may aid in detection of the peritrophoblastic flow. Furthermore, it facilitates detection of ectopic living embryo, tubal ring or unspecific adnexal tumor. Corpus luteum cysts and leiomyomas are another cause of pelvic pain during pregnancy, which can be correctly diagnosed by ultrasound. Detection of uterine dehiscence and rupture in patients with history of prior surgical intervention on uterine wall relies exclusively on correct ultrasound diagnosis. In patients with placental abruption sonographer detects hypoechoic complex representing either retroplacental hematoma, subchorionic hematoma or subamniotic hemorrhage. In closing, ultrasound has already become important and easily available tool which can efficiently recognize patients with possibly threatening conditions of different origins.
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PMID:[Ultrasonography in acute pelvic pain]. 1276 97

Peritonitis is a rare complication of ventriculoperitoneal shunt. Shunt infection may be the cause in patients with ventriculoperitoneal shunt, who have acute abdomen. Specific clues taken from patient's history, physical examination and some further investigations may clarify the diagnosis. This case is a 25-years-old male with a ventriculoperitoneal shunt who presented symptoms of acute abdomen. The patient was admitted with complaints of abdominal pain. There were no neurologic signs or symptoms. Physical examination on admission revealed a mass in the right lower abdomen and abdominal muscular guarding with rebound tenderness. Laboratory studies showed leukocytosis of the peripheral blood. Abdominal ultrasound demonstrated a mass and the preoperative diagnosis was appendicitis. On abdominal exploration, appendix was found to be normal but a catheter infection related omental necrosis was present. Surgical therapy was carried out by withdrawal of the catheter and segmental resection of the omentum. The patient was discharged on seventh day postoperatively.
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PMID:[A case of acute abdomen due to ventriculo-peritoneal shunt infection]. 1283 12

Primary epiploic appendicitis are considered to be a rare cause of acute abdomen. We reported 2 cases in which computed tomography CT suggested the diagnosis. Primary epiploic appendicitis shows characteristic CT findings that allow the diagnosis and follow-up. This entity resolves spontaneously and CT helps in avoiding unnecessary surgery.
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PMID:[Primary epiploic appendicitis: an etiology of acute abdomen revealed by CT scan]. 1287 72

Acute appendicitis is usually encountered clinically as acute abdomen. Typical cases are easy to diagnose, but it can sometimes be very difficult to make a diagnosis in atypical cases. We retrospectively studied patients who underwent ultrasonography for right-sided lower abdominal pain suggesting acute appendicitis, and assessed the accuracy of ultrasonic diagnosis. The subjects were 202 patients (100 males and 102 females) aged 6-89 years (mean: 33.3 years). From the ultrasonic findings, appendicitis was classified as follows: 1) catarrhal: a clear layer structure of the appendiceal wall and mucosal edema; 2) phlegmonous: an ill-defined layer structure of the appendiceal wall, moderate enlargement of the apendix, and maximum transverse dimension of > or = 10 mm; and 3) gangrenous: unidentifiable layer structure of the appendiceal wall and marked enlargement to form a mass. The appendix was visualized in 142 of the 202 patients (70.3 %). When the appendix was detected, the sensitivity, specificity and accuracy of ultrasound for making a diagnosis of appendicitis were 97.6%, 82.0 %, 91.5 %, respectively. With regard to assessment of the severity of inflammation, ultrasonic and histologic findings were concordant in 61.2 % of the patients. However, ultrasound was shown to possibly underestimate the extent of inflammation. On the other hand, 11 of the 60 patients with an undetectable appendix (18.3 %) were clinically diagnosed as having appendicitis. The pathologic diagnosis was catarrhal appendicitis in 3 patients and phlegmonous appendicitis in 8 patients. In patients with an undetectable appendix, the possibility of catarrhal or phlegmonous appendicitis should be kept in mind.
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PMID:Ultrasonography for the diagnosis of acute appendicitis. 1288 Mar 3

Acute appendicitis, the most common cause of abdominal surgical emergency, shows a different pathogenesis, clinical course and outcome in the elderly. Age-specific factors are effective on preoperative clinical diagnosis and on the stage of this infectious disease. We aimed to present our experience with a series of elderly patients with appendicitis who were subjected to appendectomy. Operative and hospital records of patients with appendicitis were retrospectively reviewed. Patients who were 50 years of age or older were the main constituents of the study. Demographic features, preoperative clinical diagnosis, abdominal interventions, and postoperative morbidity and mortality were analysed as the main criteria. A total of 109 older patients have constituted 4.3% of our appendectomy cases. Besides right lower quadrant transversal incisions, surgery was performed via vertical incisions in 28.4% of cases with a diagnosis of acute abdomen. In the elderly, the perforation rate was significantly higher than in paediatric and adult patients (P<0.001). The proportion of the elderly among perforated cases was significantly increased when compared with non-perforated cases (12.9 versus 2.9%; P<0.001). Postoperative morbidity was noted in 35.8% of elderly patients, in 73.8% of perforated, and in 11.9% of non-perforated cases (P<0.001). The mortality rate was 5.5% in the elderly group, 11.9% in patients with perforated, and 1.5% in patients with non-perforated appendicitis. No mortality was noted in patients younger than 50 years. The precise diagnosis of appendicitis is relatively low in the elderly. Despite the uncommon occurrence of appendicitis, the perforation rate is still unfavourable. Postoperative morbidity and mortality is unacceptably high. Advancing age adversely affects clinical diagnosis, the stage of disease and the outcome of patients. Perforated appendicitis and septic progression is the main cause of undesirable outcomes.
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PMID:Age-related clinical features in older patients with acute appendicitis. 1297 95

Idiopathic segmental infarction of the greater omentum is a rare cause of acute abdomen. Patients, typically children or obese males in their fifties, present with abdominal pain located in the right upper or lower quadrant, mimicking cholecystitis and appendicitis. CT scanning and ultrasound imaging both may show a well-circumscribed soft tissue mass. Retrospective review of all patients treated for idiopathic segmental infarction of the greater omentum occurred from January 1993 to December 2001. Nine patients were treated successfully, six surgically and three medically. Conservative management of segmental infarction of the greater omentum can be proposed when correctly diagnosed by ultrasound imaging or CT scanning and the patient's condition is stable. If not, laparoscopic removal of the involved segment of the greater omentum is the treatment of choice.
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PMID:Idiopathic segmental infarction of the greater omentum: a rare cause of acute abdomen. 1312 61

Growing popularity of laparoscopic interventions must bring along a thorough knowledge of possible complications inherent to the laparoscopic technique. With these two cases of residual appendicitis following incomplete appendectomy, the authors want to warn for this complication. Surgeons should be aware of residual appendicitis as a possible cause of acute abdomen at any time following a laparoscopic appendectomy.
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PMID:Residual appendicitis following incomplete laparoscopic appendectomy. 1465 41

Although multislice, helical CT is increasingly replacing ultrasonography for the evaluation of patients with acute abdominal pain, ultrasound does have certain specific advantages over CT. This article discusses the advantages of ultrasound in imaging of the acute abdomen, exploring such areas as appendicitis, ileocecal Crohn's disease, infectious ileocolitis and infectious ileocecitis, mesenteric lymphadenitis, cecal carcinoma, sigmoid diverticulitis, right-sided colonic diverticulitis, and perforated peptic ulcer.
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PMID:Ultrasonography of the acute abdomen: gastrointestinal conditions. 1466 68


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