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Query: UMLS:C0027627 (metastases)
 103,950 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The case of a 61-year-old woman with a surgically resected solitary cholangiocarcinoma of the liver is reported, where many discrete multiple bile duct hamartoma (MBDH) were also seen. The latter is a congenital lesion of the liver that potentially may be confused with widespread metastatic disease. The relationship between cholangiocarcinoma and MBDH was studied histologically by the use of an immunoperoxidase technique for cytokeratin. MBDH was strongly positive for cytokeratin, while the neoplasm showed this to a lesser extent, but a clear continuity between the MBDH epithelial cells and those of the neoplasm was demonstrated by the use of this technic. The potential use for the various cytokeratins in the differentiation of primary from secondary liver tumors, is discussed. This differentiation is a significant problem to the pathologist. Although cholangiocarcinoma may, on occasion, be associated with various congenital lesions of the bile ducts, the association with MBDH is extremely rare, this being only the third reported case.
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PMID:Cholangiocarcinoma associated with multiple bile-duct hamartomas of the liver. 247 May 58

Two cases of low-grade endometrial stromal sarcoma (ESS) presenting as cystic pulmonary metastases are reported. Both lung lesions were initially thought to represent examples of so-called mesenchymal cystic hamartoma. A diligent search of the past medical records in the first case revealed that a primary low-grade ESS of the uterus had been resected 27 years earlier. In the second case, a uterine tumor was seen by computed tomography scan and subsequent pathologic examination of the hysterectomy specimen established the presence of a low-grade ESS. Peritoneal metastases, present in both cases, also presented diagnostic problems until the uterine primaries were recognized. Immunoreactivity for desmin was detected in all primary and metastatic tumor sites examined. We conclude that ESS should be included among the desmin-positive spindle cell sarcomas and that metastatic ESS should be included in the differential diagnosis of "benign" mesenchymal cystic hamartoma of the lung.
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PMID:Pulmonary metastases in patients with low-grade endometrial stromal sarcoma. Clinicopathologic findings with immunohistochemical characterization. 291 27

Hamartomas of the lung are usually discovered incidentally during chest X-ray in asymptomatic patients. Their differentiation from lung carcinoma or metastases may not be possible by radiography. Transthoracic fine-needle aspiration biopsy is an important and safe diagnostic tool in that differentiation. In our institution we have been practising this method since 1971. By combining clinical information, radiological appearance of the pulmonary lesion and the cytological report we achieved safe diagnosis in 31 of 33 patients. Surgical biopsy was avoided in 29 patients. Based on this series we recommend transthoracic fine-needle aspiration biopsy as the first diagnostic step in evaluating solitary pulmonary lesions suspected of pulmonary hamartomas.
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PMID:The diagnostic value of chest X-ray combined with fine-needle aspiration biopsy in patients suspected for pulmonary hamartomas. 368 39

Forty-seven patients with a proved (n = 31) or presumed (n = 16) diagnosis of pulmonary hamartoma were studied prospectively by thin-section computed tomography (CT). CT criteria for hamartoma included a diameter of 2.5 cm or less, a smooth edge, and focal collections of fat or fat alternating with areas of calcification. No case of cancer (n = 283) or metastatic disease (n = 72) fulfilled these criteria. Seventeen hamartomas with no detectable calcium or fat were not diagnosed by means of CT. Two other lesions contained diffuse calcium deposits. In 28 lesions, a CT diagnosis of hamartoma was based on the detection of fat (n = 18) or calcium plus fat (n = 10). Twelve such cases were proved histologically by means of thoracotomy or needle biopsy; the remainder, including eight in asymptomatic patients aged 65 years or older, were managed with conservative follow-up.
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PMID:Pulmonary hamartoma: CT findings. 372 6

The authors retrospectively evaluated the characteristics on magnetic resonance (MR) images of 59 suprasellar lesions and compared them with computed tomography (CT) scans in 55 of the cases in which CT was performed. A diverse number of lesions were included: 17 pituitary adenomas; eight optic or hypothalamic gliomas; six craniopharyngiomas; six vascular anomalies; four lesions with extension into the suprasellar space; three metastases; two each of meningioma, hamartoma, germinoma, sarcoid granuloma, and teratoma; and one each of lymphoma, optic tract hematoma, cerebrospinal fluid-borne metastasis, pituitary hyperplasia, and sphenoid sinus mucocele. MR enabled characterization of lesions containing hemorrhage, fat, flowing blood, mucus, and cyst and allowed more specific diagnoses than CT in 6% of cases. MR was equivalent to CT in allowing lesions to be detected and in 20% of cases more accurately defined altered perisellar anatomy. Vascular abnormalities can be better evaluated with MR, and use of angiography can be avoided in some cases.
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PMID:Suprasellar lesions: evaluation with MR imaging. 376 87

Of 71 intrapulmonary coin lesions seen at The Prince Charles Hospital during 1982-1984, 48 were primary pulmonary malignancies and six were metastases. There were two cases each of tuberculosis, cryptococcosis, hamartoma and granuloma. Overall, 76% of the lesions were malignant and only 3% were tuberculous. These findings contrast with those from the same institution published 20 years ago, when malignancy comprised only 38% and tuberculosis 27% of lesions. Malignancy now seems to be the major cause of coin lesions in Australia. In this survey, 82% of solitary pulmonary nodules that occurred in patients of over 50 years of age were malignant.
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PMID:Intrapulmonary coin lesions: the changing patterns. 394

Hamartomas of the lung often present as asymptomatic, noncharacteristic masses that can seldom be differentiated from other lung masses such as primary cancer or metastases by conventional radiography. Transthoracic needle-aspiration biopsy (TNAB) has become a popular and reliable method for the diagnosis of a lung lesion, and it offers a valuable alternative to diagnostic thoracotomy. In our study, TNAB established the diagnosis of pulmonary hamartoma in 12 of 14 (86%) patients. In eight patients, one procedure (using one to three punctures) was sufficient to establish the diagnosis, and, in four patients, two procedures (using one to two punctures) were necessary. In two patients, the lesion was missed on second and/or third biopsy procedures, and the correct diagnosis was obtained at surgery. Cytologic examination of the material was diagnostic in five of the 14 patients. Tissue specimens were sent in 13/14 patients, and findings of histologic examination established the correct diagnosis in 11 of these patients. One of the 12 patients in whom hamartoma was correctly diagnosed by TNAB underwent resection of his lesion, and histologic examination confirmed the diagnosis. In the remaining 11 patients, the lesions have been stable on follow-up chest examinations.
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PMID:Pulmonary hamartoma: diagnosis by transthoracic needle-aspiration biopsy. 397 94

A female suffering from a complete Carney's triad (two gastric epithelioid leiomyomas, recurrent and metastasizing laryngeal paraganglioma, and pulmonary chondroma or hamartoma), and from a myxoma is described. The time elapsed between the detection of the gastric tumors and the metastases of the paraganglioma was 19 years.
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PMID:Gastric epitheloid leiomyomas, pulmonary chondroma, non-functioning metastasizing extra-adrenal paraganglioma and myxoma: a variant of Carney's triad. Report of a patient. 399 Jan 71

Presentation is made of 27 cases of liver neoplasms in infancy and childhood that were admitted to the Pediatric Hospital of the National Medical Center of the IMSS, through a period of 15 years. Sixteen cases were diagnosed as hepatoblastoma, 2 as hepatocellular carcinoma, 4 as mesenchymal hamartoma, 2 as hemangioendothelioma of infantile type, 2 were embryonal rhabdomyosarcoma of the intrahepatic bile-ducts and one case of multiple bile-ducts hamartoma. The hepatoblastoma and the mesenchymal hamartoma are neoplasms that appear more frequently before the age of 2 years; the hepatocellular carcinoma, after 5 years of age and the infantile hemangioendothelioma generally appears before 6 months old. In all, benign and malignant cases, the clinical manifestations were non specific and did not help to establish the diagnoses. The mesenchymal hamartomas were characterized by the fast growth that led to think in neoplasms of malignant nature. The selective treatment is lobectomy with a better prognosis if the neoplasm is located in the left lobe. The right lobe was the most frequently affected by the benign tumors, as well as by the malignant, and the lung was the organ wherein metastases more often were found.
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PMID:[Liver neoplasms in children]. 627 66

Clinical and pathological findings in a forty-eight-year-old woman with malignant mesenchymatous hamartoma of the liver (embryonic sarcoma) are reported. Special emphasis is put on the monomorphic leiomyosarcomatous aspect of the peritoneal metastases, and on the presence of pseudo-tumorous foci abounding in plasmocytes and centered by recent phlebitis.
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PMID:[Malignant mesenchymatous hamartoma of the liver in adults. Apropos of a case]. 631 Jul 77


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