Efficacy of Prednisone in Children with Acute Nonspecific Mesenteric Lymphadenitis: A Pilot Study.

BACKGROUND: Acute nonspecific mesenteric lymphadenitis (ANML) is a common cause of acute abdominal pain in children with no specific treatment. METHODS: A total of 13 patients (6 boys, 7 girls) aged 7.3 (5-13.5) years with severe acute abdominal pain were evaluated using ultrasonography and laboratory tests to establish the diagnosis of ANML. They were treated with prednisone 1 mg/kg (max 40 mg daily) for a maximum of 5 days. The intensity of abdominal pain was evaluated before and after treatment using a numeric rating scale. RESULTS: All patients had pain scores above 6/10 before, and below 4/10 after treatment with prednisone. Intensity of abdominal pain after treatment for 1-5 days decreased significantly (p < 0.001), with no recurrence at follow-up within 3 months. All other pre-existing signs and symptoms, such as nausea, vomiting, anorexia, fever, diarrhea, and constipation were found to disappear with no adverse effects of corticosteroid therapy. CONCLUSION: These results suggest that the treatment with prednisone in selective patients with ANML can reduce the duration of abdominal pain.

[Upper gastrointestinal bleeding due to tuberculous mesenteric lymphadenitis that fistulizes the gastric wall]. / Hemorragia digestiva alta por linfadenitis mesentérica tuberculosa que fistuliza a la pared gástrica.

Tuberculous lymphadenitis is the most common entity of abdominal tuberculosis, which occurs due to reactivation of a latent focus. Its diagnosis requires a high degree of suspicion, for which it requires endoscopic, radiological, and histopathological studies. In the evaluation of lymphadenopathies, endoscopic ultrasound-guided aspiration puncture plays an important role. We present the case of a 22-year-old male patient who was admitted to the Emergency Department of the Arzobispo Loayza National Hospital due to upper gastrointestinal bleeding secondary to tuberculous mesenteric lymphadenitis that compromised the gastric wall.

Hypercalcemia as a rare presentation of angioimmunoblastic T cell lymphoma: a case report.

BACKGROUND: Angioimmunoblastic T cell lymphoma is a rare malignancy, accounting for only 2% of all non-Hodgkin lymphomas, first described in the 1970s and subsequently accepted as a distinct entity in the current World Health Organization classification. Due to the paucity of this disease, there is still no identifiable etiology, no consistent risk factors, and the pathogenesis remains unclear. CASE PRESENTATION: An 83-year-old Caucasian man presented to an emergency department with palpitations and was found to have atrial fibrillation. During his hospitalization, he was found to have asymptomatic hypercalcemia with corrected calcium of 11.7. Ten days later while in rehabilitation, he started complaining of progressive fatigue and altered mental status was noted. He was found to have a calcium level of 15.5 and was admitted to the intensive care unit for management and further workup. He was found at that time to have, parathyroid hormone: < 1; 25 hydroxyvitamin D: 74; 1,25 dihydroxyvitamin D: 85.4; angiotensin-converting enzyme: 7; parathyroid hormone-related protein: < 2; and multiple myeloma workup was negative. Computed tomography of his chest and abdomen showed extensive retroperitoneal, pelvic, and mesenteric lymphadenopathy in addition to findings suggestive of peritoneal carcinomatosis. A right axillary lymph node biopsy showed immunohistochemical parameters consistent with angioimmunoblastic T cell lymphoma. After a lengthy discussion with his family, it was decided that no further treatment would be pursued. He had an aggressive course at the hospital during which he developed pleural effusions, ascites, and diffuse petechiae within 2 weeks; these were complications from his malignancy. Considering the poor outcomes of his aggressive disease, he decided to enroll in an out-patient hospice. He died within a few months as a result of cardiorespiratory arrest. CONCLUSIONS: This case illustrates a rare presentation of an extremely rare disease; that is, hypercalcemia in a patient who was later found to have angioimmunoblastic T cell lymphoma. Diagnosing angioimmunoblastic T cell lymphoma might be the most challenging part due to the wide array of clinical presentations, of which hypercalcemia accounts for only 1%. As seen in this case, most patients present in advanced stages of the disease with poor prognosis.

Characteristics of mesenteric lymphadenitis in comparison with those of acute appendicitis in children.

Mesenteric lymphadenitis (ML) is considered as one of the most common alternative diagnosis in a child with suspected acute appendicitis (AA). In this retrospective study, patients diagnosed with ML (n = 99) were compared in terms of demographic, clinical, and laboratory findings to patients diagnosed with AA (n = 102). This comparison was applied for both lymph nodes smaller and larger than 10 mm. When compared to patients with AA, patients with ML had significantly longer duration of symptoms prior to emergency department (ED) presentation (2.4 ± 2.6 vs 1.4 ± 1.4 days, P = 0.002) and multiple ED presentations (1.3 ± 0.7 vs 1.05 ± 0.3, P < 0.001) and had longer duration of stay in the ED (9.2 ± 5.9 vs 5.2 ± 4 h, P < 0.001), respectively. They also had significantly lower WBC (10.16 ± 4.7 × 103/dl vs 15.8 ± 4.4 × 103/dl, P < 0.001) with lymphocyte predominance (24.6 ± 14 vs 13 ± 8.7%, P < 0.001) and lower CRP levels (0.48 vs 1.6 mg/dl). Migration of pain (28 vs 7%), vomiting (62 vs 34%), and classic abdominal findings of AA (72 vs 20%) were all significantly more common for children with AA. When comparing lymph node size, no significant difference was found between those presenting with small and large nodes. CONCLUSION: This study highlights multiple clinical and laboratory findings that differentiate ML and AA. Moreover, the absence of any difference with regard to the lymph nodes size might suggest that lymph nodes enlargement is a non-specific finding. What is Known : • Mesenteric lymphadenitis is a very common diagnosis in children with suspected acute appendicitis. • Despite its prevalence, only few studies addressed the clinical characteristics of this clinical entity and their comparison with acute appendicitis. What is New: • Mesenteric lymphadenitis and acute appendicitis could be differentiated by multiple clinical and laboratory parameters. • No significant difference was found between those presenting with small and large lymph nodes.

[A rare case of suppurative mesenteric adenitis associated with intussusception in a child: a clinical case]. / Un cas rare d'adénite mésentérique suppurée associée à une invagination intestinale chez un enfant: cas Clinique.

Some cases of suppurative mesenteric adenitis have already been described in the literature but not associated with intussusception. We describe the case of a 3-year-old boy presenting to the department of surgery at the University Hospital of Lubumbashi with bowel obstruction. He was visited elsewhere, in the previous 12 days, for diarrhea, vomiting, fever, coma and treated for cerebral malaria and blackwater fever. Surgery revealed an ileal intussusception and a suppurative mesenteric adenitis whose pyoculture revealed the presence of Enterobacter cloacae, sensitive to norfloxacin. We performed desinvagination, sucked the pus out into a syringe and excized completely the site of suppurative adenitis. The evolution of patient was good. The clinician must know that the association between suppurative mesenteric adenitis and intussusceptions exists. The diagnosis is not easy and there is the risk of developing acute peritonitis due to its fistulation in the abdominal cavity.

Is mesenteric lymphadenitis a cause of ovarian reserve reduction? - Case Report.

Mesenteric lymphadenitis is a clinical condition that affects mostly children and teenagers. Its symptoms include fever, severe abdominal pain, nausea, and, in some cases, diarrhea, constipation, and acute abdomen. This paper describes the case of a 16-year-old patient with mesenteric lymphadenitis submitted to an exploratory laparoscopy for suppurative lymph nodes that evolved to a drastic reduction of ovarian reserve. Because of the patients age, she was offered cryopreservation of her ovarian tissue.

Sonography of Abdominal Pain in Children: Appendicitis and Its Common Mimics.

Abdominal pain is very common in the pediatric population (<18 years of age). Sonography is a safe modality that can often differentiate the frequently encountered causes of abdominal pain in children. This pictorial essay will discuss the sonographic findings of acute appendicitis, including the imaging appearance of a perforated appendicitis. It will also present the sonographic features of the relatively common mimics of appendicitis, such as mesenteric adenitis/gastroenteritis, intussusception, Meckel diverticulum, and ovarian torsion.

Aseptic mesenteric lymph node abscesses. In search of an answer. A new entity?

Mesenteric lymphadenitis constitutes a frequent cause for abdominal pain and may manifest acute abdominal symptoms. Very often, it is difficult to achieve a differential diagnosis as there are many diseases that can generate mesenteric lymphadenopathy. Many times, it is impossible to determine the diagnosis of the disease that has triggered mesenteric lymphadenopathy even after surgical intervention with biopsy. The failure in determining the precise cause of the mesenteric lymphadenoapathy, as well as its unresponsiveness to conservative treatments increases the difficulty in the management of this disease very much. In this paper we have reviewed the diseases that can trigger mesenteric lymphadenitis in detail, with reference to our experience. To the best of our knowledge, this is the most extensive review on this theme in current specific literature. The case reported by us, with a history of mesenteric adenitis, splenic and ganglionic abscesses, vasculitis skin nodules, pseudotumoral ileal stenosis and remission-recurrence pattern over 25 years, has raised extremely difficult problems of differential diagnosis. Its enlistment as a Crohn's disease, vasculitis or aseptic abscess syndrome seems unsatisfactory. The analysis of the data in this case can raise the legitimacy of the question: should we recognize and define a new entity?

[Mesadenitis in children with acute abdominal pain syndrome: clinical and echographic parallels].

The paper pools the experience of ultrasound assessment of acute mesadenitis in children with acute abdominal pain syndrome. It reviews the literature on its etiology, pathology, and diagnosis and treatment principles. B-mode and Doppler echograms made by general practice ultrasound diagnosticians are shown. The technique is demonstrated to be effective and of informative value in the early stages of diagnosis in the patient contingent in question.

Congenital absence of the cecal appendix. Case report.

BACKGROUND: Agenesis of the vermiform appendix is very rare and was first described by Morgagni in 1718. The estimated incidence is 1/100,000 laparotomies performed for suspected appendicitis. This case is reported with the aim of attracting the attention of surgeons who may be in a similar situation during laparotomy. CLINICAL CASE: A 48-year-old male was admitted through the emergency room with the complaint of vague abdominal pain most marked in the epigastrium and mesogastrium which, 4 h after it began, was located in the right iliac fossa and was accompanied by hyporexia, nausea, vomiting and fever. During physical examination, the patient was febrile, tachycardic, and tachypneic, with decreased peristalsis, abdomen painful to palpation and percussion in the right iliac fossa. There were positive appendicular signs. Blood panel showed leukocytosis (14,000), neutrophilia (89.60%) and lymphopenia (5.33%). X-rays of the abdomen showed no abnormalities. We made a presumptive diagnosis of acute appendicitis and the patient underwent celioscopy where surgical findings were reported as type IV Collins appendiceal agenesis and concomitant mesenteric adenitis. CONCLUSIONS: Several criteria must be determined before the surgeon can conclude that the appendix is congenitally absent. Diagnosis should not be confirmed until the ileo- and retrocecal regions have been explored.

Agenesia del apéndice cecal: informe de un caso / Congenital absence of the cecal appendix: case report

Introducción: La agenesia del apéndice cecal es muy rara y fue descrita por primera vez por Morgagni en 1718. La incidencia estimada es de uno por cada 100 mil laparotomías realizadas por sospecha de apendicitis. Se informa este caso con la finalidad de atraer la atención de los cirujanos que se encuentren en situación similar durante la laparotomía. Caso clínico: Hombre de 48 años de edad admitido en la sala de urgencias por dolor abdominal de tipo vago, más notable en epigastrio y mesogastrio, el cual cuatro horas después de iniciado se localizó en la fosa iliaca derecha, acompañado de hiporexia, náusea, vómito y fiebre. A la exploración física se encontró paciente febril, taquicárdico, taquipneico, con peristaltismo disminuido, abdomen doloroso a la palpación y a la percusión en la fosa iliaca derecha. Signos apendiculares positivos. La biometría hemática indicó leucocitosis de 14 mil, neutrofilia (89.60 %) y linfopenia (5.33 %). Las radiografías simples de abdomen no mostraron anormalidades. Se formuló diagnóstico de probable apendicitis aguda, por lo que se efectuó celioscopia, identificándose agenesia apendicular tipo IV de Collins y adenitis mesentérica concomitante. Conclusiones: Se tienen que conocer varios criterios antes de concluir que el apéndice cecal está ausente de manera congénita. El diagnóstico no debe realizarse hasta que la regiones ileocecal y retrocecal hayan sido exploradas.

BACKGROUND: Agenesis of the vermiform appendix is very rare and was first described by Morgagni in 1718. The estimated incidence is 1/100,000 laparotomies performed for suspected appendicitis. This case is reported with the aim of attracting the attention of surgeons who may be in a similar situation during laparotomy. CLINICAL CASE: A 48-year-old male was admitted through the emergency room with the complaint of vague abdominal pain most marked in the epigastrium and mesogastrium which, 4 h after it began, was located in the right iliac fossa and was accompanied by hyporexia, nausea, vomiting and fever. During physical examination, the patient was febrile, tachycardic, and tachypneic, with decreased peristalsis, abdomen painful to palpation and percussion in the right iliac fossa. There were positive appendicular signs. Blood panel showed leukocytosis (14,000), neutrophilia (89.60%) and lymphopenia (5.33%). X-rays of the abdomen showed no abnormalities. We made a presumptive diagnosis of acute appendicitis and the patient underwent celioscopy where surgical findings were reported as type IV Collins appendiceal agenesis and concomitant mesenteric adenitis. CONCLUSIONS: Several criteria must be determined before the surgeon can conclude that the appendix is congenitally absent. Diagnosis should not be confirmed until the ileo- and retrocecal regions have been explored.

Increased echogenicity of renal cortex: a transient feature in acutely ill children.

OBJECTIVE: The purpose of our study was to determine the frequency of hyperechogenicity of renal parenchyma in children with acute abdominal illness and to evaluate the assumed transient feature of this hyperechogenicity. MATERIALS AND METHODS: Between January 2005 and February 2006, 189 consecutive patients (112 boys and 77 girls; mean age, 10 years) presenting with acute abdominal pain were examined with sonography. Patients with a known history of renal disease and those with acute urinary tract infection were excluded from the study. Echogenicity of the renal cortex in comparison with adjacent liver was recorded. Renal cortex echogenicity was divided into three groups; group 1, renal cortex echogenicity less than liver parenchyma echogenicity; group 2, renal cortex echogenicity similar to that of liver parenchyma; and group 3, renal cortex echogenicity greater than that of liver parenchyma. Patients with hyperechogenicity were reexamined with sonography after 2 weeks or more. The final sonographic diagnosis and clinical outcome were noted. RESULTS: Renal cortex echogenicity was equal to or greater than that of the liver parenchyma in 18% (n = 34) of 189 patients. Increased echogenicity of the renal cortex returned to normal in 2 or more weeks in all patients. Three patients had no follow-up. Clinical diagnoses were idiopathic acute abdominal pain (n = 74), appendicitis (n = 83), mesenteric lymphadenitis (n = 15), ileocecitis (n = 7), gastroenteritis (n = 7), Crohn's disease (n = 1), intussusception (n = 1), and pneumonia (n = 1). No concurrent renal disease was diagnosed. CONCLUSION: Increased echogenicity of renal parenchyma in children with acute illness is a transient feature and does not necessarily indicate renal disease.

Importance of sonographic detection of enlarged abdominal lymph nodes in children.

OBJECTIVE: Abdominal lymph nodes are frequently visualized by sonography in the pediatric population. The term "mesenteric lymphadenitis" is frequently used in the radiologic literature to describe this finding, whereas in the pediatric literature, this term is reserved for specific inflammation of the lymph nodes. The purpose of this study was to compare by sonography the incidence of appearance of enlarged abdominal lymph nodes (EALNs) in healthy children compared with that in children with abdominal pain of various causes. METHODS: In 200 patients referred for abdominal sonography for various indications, the presence of EALNs, their location, and size were registered. The patients were divided into 3 groups: those with abdominal pain due to an acute abdominal condition (group 1), those with abdominal pain without an acute abdominal condition (group 2), and asymptomatic patients (group 3). RESULTS: Enlarged abdominal lymph nodes greater than 5 mm were detected in 83.3% of group 1 patients, 73.8% of group 2 patients, and 64% of group 3 patients. A significant statistical difference was found between patients with abdominal pain and asymptomatic children only for lymph nodes of 10 mm and larger (P = .0117). No statistically significant difference was seen in the presence of lymph node clusters between the patients with abdominal pain and asymptomatic children. There was a tendency of increased EALN occurrence with age, peaking at 10 years, with a decrease later. CONCLUSIONS: Enlarged abdominal lymph nodes are frequently encountered in asymptomatic children and should not always be considered abnormal. Enlarged abdominal lymph nodes exceeding 10 mm in their shortest axis in children with abdominal pain may represent mesenteric lymphadenitis of various causes.

Mesenteric adenitis caused by Yersinia pseudotubercolosis in a patient subsequently diagnosed with Crohn's disease of the terminal ileum.

Although the association between inflammatory bowel disease and gastrointestinal infections has been suggested, the mechanisms involved in the pathogenesis of Crohn's disease (CD) are still undetermined. We report the case of a man, who presented with mesenteric adenitis initially due to a Yersinia pseudotubercolosis infection, who was later diagnosed with Crohn's disease. This case is in keeping with recent evidence in the literature which suggests that CD is a disease linked to abnormal immune responses to enteric bacteria in genetically susceptible individuals.

[Acute abdominal pain in a 8-year-old girl with Epstein-Barr infection]. / Douleur abdominale aiguë au cours d'une primo-infection par le virus d'Epstein-Barr.

Abdominal pain is uncommon in patient with Epstein-Barr infection and is usually attributed to an enlargement of the liver or spleen. We report on an 8-year-old girl with a pseudoperitonitis due to a mesenteric lymphadenitis associated with Epstein-Barr infection. Outcome was favourable without surgery. We review the different causes of abdominal pain occurring during Epstein-Barr infection.