Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0740577 (acute abdominal pain)
 1,982 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The case of a 62-year-old man who presented with acute abdominal pain and a widespread tumor involving the retroperitoneum is described. Three weeks after initial presentation, the patient died suddenly of acute cardiac failure with signs of arrhythmia. Autopsy revealed a disseminated tumor with infiltration of the retroperitoneal fat, as well as nodules in the left testis and the right atrium. The tumor cells were reactive for CD45, vimentin, and chloroacetate esterase, but were unreactive with a broad spectrum of antibodies against myelomonocytic and lymphocytic antigens and with antibodies against tryptase and c-kit (CD117), which are characteristic markers for mast cells. However, the bone marrow exhibited the typical picture of mastocytosis, with disseminated clusters of differentiated spindle-shaped cells that stained strongly for tryptase, c-kit, and chloroacetate esterase. No infiltrates of well-differentiated mastocytosis could be detected in any of the extramedullary tissues investigated. A diagnosis of bone marrow mastocytosis with an associated undifferentiated extramedullary tumor of hemopoietic origin was established. By definition, the extramedullary tumor could not be diagnosed as a granulocytic sarcoma or (differentiated) mastocytoma, but the possibility that a mast cell progenitor could be involved in the evolution of both tumors cannot be ruled out.
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PMID:Bone marrow mastocytosis associated with an undifferentiated extramedullary tumor of hemopoietic origin. 914 Mar 15

Cystic (or cavernous) lymphangiomas are uncommon tumors that most often occur in the head and neck, axilla, or groin of young children but are detected occasionally in adulthood at various other anatomic sites. When arising in the abdomen, cystic lymphangiomas may present with acute abdominal pain. We have encountered examples of mesenteric and retroperitoneal cystic lymphangiomas associated with such marked superimposed reactive and inflammatory changes that their lymphatic nature is obscured, a situation that is not widely recognized. To further characterize these lesions, 7 abdominal lymphangiomas associated with florid reactive changes were retrieved from the authors' consultation files. There were 5 female patients and 2 male patients (median age, 42 years; range, 1 month to 51 years). Five cases presented in adulthood. Tumor size ranged from 8 to 20 cm (median, 15 cm). Three tumors arose in the mesentery of the small intestine and 4 arose in the retroperitoneum (one of which also involved the posterior mediastinum). Three patients presented with a short history of abdominal pain. Radiological studies revealed large cystic or solid masses; clinical differential diagnoses included sarcoma (2 cases), enteric duplication cyst (2 cases), and cystic tumor not otherwise specified. Grossly, the tumors were generally multiloculated cystic masses associated with areas of fat necrosis and hemorrhage. The cysts often contained thick, gelatinous, or milky fluid. Histologically, all cases showed extensive areas of granulation tissue, most also including a floridly cellular reactive myofibroblastic proliferation, obscuring the lymphatic nature of the lesion. Two cases contained extensive areas of xanthogranulomatous inflammation. In foci where the underlying lesion could be discerned, the tumors were composed of cystically dilated lymphatic spaces, some of which were partially invested by a layer of smooth muscle and were associated with occasional lymphoid aggregates. The lymphatic spaces contained either clear fluid or large numbers of foamy macrophages. The lymphatic endothelial cells lining the cystic spaces were generally attenuated with no cytological atypia. One case showed features of a complex vascular malformation with a predominant component of cavernous lymphangioma. By immunohistochemistry, in all cases, the endothelial cells lining the dilated lymphatic spaces were positive for CD31 and D2-40, 4 of 7 were positive for CD34, and all were negative for keratin. Clinical follow-up information was available for 4 patients (median, 26 months; range, 22-36 months): 3 patients had no evidence of recurrence and 1 patient was asymptomatic with radiographic evidence of minimal persistent disease. In summary, some intraabdominal lymphangiomas have a tendency to induce marked reactive and inflammatory changes in the surrounding tissues, often obscuring their nature and occasionally leading to the clinical impression of a malignant tumor. Awareness of this unusual occurrence will lead to the correct diagnosis.
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PMID:Intraabdominal cystic lymphangiomas obscured by marked superimposed reactive changes: clinicopathological analysis of a series. 1589 5

A 60-year-old woman after aortic valve replacement had an acute abdominal pain. Computed tomography demonstrated a tumor in the aorta, which originated from the distal portion of the thoracic aorta and extended to the aortic bifurcation. At autopsy, the orifices of celiac, superior and inferior mesenteric, right and left renal arteries were consistently occluded by incursion of the tumor. We present herein a huge primary sarcoma in the abdominal aorta, which has been reported as extremely rare.
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PMID:A primary angiosarcoma in the aorta. 1769 42

Liposarcoma is the most common soft tissue sarcoma in adults, and it typically occurs in either the retroperitoneum or the extremities. However, this malignant tumor is very rare in the female reproductive system. A 58-year-old woman presented with acute abdominal pain, and computed tomography (CT) scan detected multiple masses measuring 4-6 cm in size with a fatty density in her adnexal region. Laparoscopic evaluation revealed tumors of the left fallopian tube with a normal left ovary. Histopathological evaluation of the resected pelvic tumors showed lipocytes and lipoblasts of various sizes, leading to diagnosis of well-differentiated liposarcoma of the left adnexal region. This is the first known case of a liposarcoma arising from the fallopian tube. When a pelvic mass with fatty density that does not show typical findings of a mature cystic teratoma is detected by either CT or magnetic resonance imaging, the possibility of a liposarcoma should be considered.
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PMID:First case of liposarcoma arising from the fallopian tube: case report and review of the literature. 1884 Jan 88

Undifferentiated pleomorphic sarcoma of bowel is very rare, only a few cases have been reported till date. A 29 year old male patient presented with acute abdominal pain due to intussusception, contrast enhanced computed tomography abdomen showed multiple endoluminal homogenously enhancing polypoidal lesions with distant metastasis. Radiologically our primary diagnosis was malignant gastrointestinal stromal tumor, however, histopathological evaluation turned out to be a small bowel undifferentiated pleomorphic sarcoma. Considering the multiplicity of lesion and early distant metastasis radiologist should also consider sarcoma involving bowel as one of the differential diagnosis.
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PMID:CT of primary undifferentiated pleomorphic sarcoma of small intestine with distant metastases presenting with intussusception. 3207 55