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Query: UMLS:C0085693 (acute appendicitis)
 3,606 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Appendiceal lymphomas are exceedingly rare, constituting around 0.015% of all gastrointestinal lymphoma cases. Burkitt's lymphoma is the second most prevalent pathology, diagnosed in 25.9% of patients. We report a case of a 36-year-old male admitted with acute abdominal pain with 2 days of evolution, localized in the right lower quadrant associated with hyporexia, but no fever. On examination he presented abdominal tenderness on the right iliac fossa. A diagnosis of acute appendicitis was made clinically. At the post-operative follow up, 2 weeks later, he presented a low back pain of high intensity, associated with swelling of the abdomen, night sweats, daily fevers and weight loss. The histopathological exam of the appendix revealed diffuse and transmural lymphoid proliferation. Immunohistochemistry suggested high grade B-cell lymphoma indicative of Burkitt's lymphoma. This patient was staged as a IVxB lymphoma and was submitted into polychemotherapy with a complete clinical response in 8 months.
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PMID:Burkitt's lymphoma presenting as acute appendicitis: a case report. 2994 79

<strong>BACKGROUND</strong> Appendicitis is the most common cause of an acute abdomen. Approximately 1% of appendicectomies will have an incidental finding of an appendiceal neoplasm. A primary appendiceal lymphoma is extremely rare, and is found in 0.015% of all appendiceal specimens. Burkitt lymphoma is an aggressive B cell lymphoma characterized by translocation and dysregulation of the c-Myc gene. Burkitt leukemia is considered to be an alternative manifestation of the same pathology, and is defined by the presence of >25% Burkitt blasts within the bone marrow. The treatment approaches for Burkitt leukemia/lymphoma are similar. <strong>CASE REPORT</strong> A 6-year old girl presented with a history, examination, and radiological imaging consistent with acute appendicitis. An inflamed, edematous appendix was identified intraoperatively, and a cecectomy was performed. Histopathological investigations demonstrated Burkitt leukemia with isolated extra-nodal involvement of the appendix. The patient was subsequently started on a multi-agent steroid and chemotherapy regimen. A literature review was performed, identifying cases of Burkitt leukemia/lymphoma presenting as appendicitis. <strong>CONCLUSIONS</strong> This case highlights the importance of clinical vigilance and routine specimen histopathology review, and explores key management considerations associated with the incidental diagnosis of Burkitt leukemia/lymphoma.
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PMID:Burkitt Leukemia Presenting as Acute Appendicitis: A Case Report and Literature Review. 3209 18


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