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Query: UMLS:C0000737 (abdominal pain)
 31,184 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Adenomatoid tumors are relatively uncommon benign neoplasms of mesothelial origin, usually occurring in the male and female genital tracts. Rare extragenital adenomatoid tumors have been identified in the adrenal glands, heart, mesentery, pleura, and lymph nodes. In the adrenal gland, adenomatoid tumors may pose a diagnostic challenge. The differential diagnosis includes adrenocortical carcinoma and metastatic carcinoma, especially signet ring cell carcinoma. Because of its glandular pattern, an adenomatoid tumor may be confused with an adenocarcinoma. We present 3 cases of adrenal adenomatoid tumors, including one with a concurrent large hemorrhagic vascular adrenal cyst. The adenomatoid tumors were unilateral, appeared solid and white, and varied from 1.7 to 4.2 cm in diameter. They occurred in 3 male patients aged 33, 33, and 46 years. One patient presented with abdominal pain due to the presence of a concurrent large adrenal cyst. The tumor was an incidental radiological finding in another case and was discovered during the course of a workup for hypertension in the third case. The light microscopic appearances were consistent with those of typical adenomatoid tumors. Immunohistochemical stains for calretinin and cytokeratin 5/6 were positive, confirming the tumors' mesothelial origin. Ultrastructural studies performed in 2 cases revealed microvilli and desmosomes. Follow-up showed no evidence of recurrence or metastasis. In our experience, the key to the diagnosis of this rare benign tumor is to consider adenomatoid tumor in the differential diagnosis of any glandular tumor occurring in the adrenal gland.
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PMID:Adenomatoid tumor of the adrenal gland: a clinicopathologic study of 3 cases. 1569 45

Adenomatoid tumor is a benign, usually small lesion that may be found within the wall of fallopian tubes or beneath the uterine serosa near the uterine cornu. It is often accompanied by smooth muscle hypertrophy that may obscure the adenomatoid tumor. We herein report a very unusual case of infarcted leiomyoadenomatoid tumor of the uterus and ovary in a 24-year-old woman who presented with severe lower abdominal pain and masses in the uterus and right ovary. Pelvic ultrasonography and computed tomography revealed a 5 cm mass in the myometrium and a 4 cm mass in the right ovary. Laparoscopy-assisted transvaginal mass removal was performed under the clinical impression of a uterine leiomyoma and benign ovarian teratoma. On a microscopic examination, prominent fascicles of smooth muscle separated or infiltrated by cuboidal or signet ring-like vacuolated cells, as well as tubular formations lined by flattened mesothelial cells and extensive necrosis were observed in both masses. The microscopic appearance often suggested the possibility of a malignant neoplasm due to irregular pseudoinfiltration with atypical cuboidal cells and the paucity of a typical adenomatoid tumor due to infarction, and the presence of epithelial-appearing cells in the hypertrophic smooth muscle bundles that mimicked an infiltrating carcinoma for a leiomyoma or myometrium. These unemphasized features of leiomyoadenomatoid tumors may potentially lead to more aggressive therapy than warranted if not correctly interpreted, especially for infarcted cases.
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PMID:Multicentric infarcted leiomyoadenomatoid tumor: a case report. 1883 Mar 86

Although a uterine leiomyomectomy or adenomyomectomy is an accepted procedure to treat symptoms such as dysmenorrhea or hypermenorrhea to enhance fertility, the risk of future uterine rupture is a major concern for patients who become pregnant following these surgery. Although uterine rupture very rarely occurs, this is the most feared complication in pregnancy and is associated with a high rate of maternal and fetal morbidity and mortality. A 37-year-old nulliparous woman had a 2-year history of infertility. A transvaginal ultrasound revealed multiple uterine tumors that resembled leiomyomas on the posterior and fundal walls of the uterine body. After the patient had three failed in vitro fertilization and embryo transfer treatments, the uterine tumor was enucleated, and pathologically diagnosed as an adenomatoid tumor. Five months after the operation, the patient became pregnant as a result of a fourth in vitro fertilization and embryo transfer. At the 33rd week of gestation, she complained of a sudden onset of abdominal pain. The patient was diagnosed with a ruptured uterus based on an ultrasound, and an emergency cesarean section was performed. The rupture occurred at the site of the operation scar on the posterior wall of the uterine body. The fetal legs extruded into the abdominal cavity from the uterine cavity but were enclosed within the unruptured chorioamniotic membrane. A male neonate (1956 g) was delivered without asphyxia and had Apgar scores of 8 and 9. The ruptured uterine wall could be repaired by suturing. To our knowledge, this is the first case report of uterine rupture during pregnancy after resection of an adenomatoid tumor in the uterine body.
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PMID:Spontaneous uterine rupture in the 33rd week of IVF pregnancy after laparoscopically assisted enucleation of uterine adenomatoid tumor. 2213 81

Adenomatoid tumour is a benign rare lesion of the female genital tract, localised in the wall of fallopian tubes or beneath the uterine serosa. It is often accompanied by smooth muscle proliferation, obscuring the presence of adenomatoid tumour, resulting in misdiagnosis of cellular leiomyoma.Here, a case of uterine serosal adenomatoid tumour associated with multiple leiomyomas and pelvic endometriosis in a 44-year-old woman who underwent surgical removal for uterine bleeding and abdominal pain is presented.
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PMID:A case of leiomyoadenomatoid tumour of uterine serosa: speculations about differential diagnosis. 2168 86

The case represents the first literature report of an adenomatoid tumor that arises primarily in the small intestine of a 44-year-old woman, who presented with intermittent upper abdominal pain accompanied by nausea and vomiting. The resected tumor was grossly unencapsulated and had a gray-tan color on its cut surface. Microscopically, it consisted of variably sized tubules and glandular spaces which involved the whole layers of the intestine. The mesothelial nature of the lesion was subsequently verified by the immunopositivity for pancytokeratin (AE1/AE3), HBME-1, calretinin, D2-40, and WT1 with cells lining the tubules and glandular spaces. Albeit very rare, adenomatoid tumor should be included in the differential diagnosis of tubular or glandular tumors occurring in the small intestine.
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PMID:Adenomatoid tumor of the small intestine: the first case report and review of the literature. 2510 19