Cases reported "Hamartoma"

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1/1512. bile duct hamartomas (von Meyenburg complexes): value of MR imaging in diagnosis.

    We present a case of a patient initially believed to have multiple liver metastases based on ultrasound and computed tomography findings in whom a diagnosis of multiple bile duct hamartomas (von Meyenburg complexes) was indicated after ultrasound-guided liver biopsy. magnetic resonance imaging aided greatly in confirming the diagnosis of von Meyenburg complexes, thereby avoiding laparotomy and open liver biopsy. ( info)

2/1512. Giant hamartoma of the lung.

    In the following case of giant pulmonary hamartoma, a 62-year-old woman exhibited a huge tumor shadow in the right lung field, whilst remaining asymptomatic. A thoracotomy revealed a solid intrapulmonary mass histologically diagnosed as a cartilaginous hamartoma with no evidence of malignancy. The tumor was resected by enucleation and there has been no recurrence for 40 months since surgery. Parenchyma-saving enucleation or excision is a safe and sufficient procedure for peripheral hamartomas of any size. ( info)

3/1512. MR imaging of complex tail-gut cysts.

    Retrorectal-cyst hamartomas (RCH) are rare developmental tail-gut cystic tumours of the retrorectal space, which occasionally undergo malignant transformation. We describe the magnetic resonance imaging (MRI) findings in two patients with RCH and in a third patient with unclassified sarcoma arising from a RCH. The RCH were hypointense or hyperintense on T1-weighted images and hyperintense on T2-weighted images; they did not enhance and they contained multiple septations. A solid component in the periphery of one cyst was markedly hypointense on T2-weighted images in keeping with fibrous material. The sarcoma arising from the wall of the RCH enhanced and was of intermediate signal intensity on all sequences. MR may help establish the diagnosis of RCH if an unenhanced cystic tumour is discovered in the retrorectal space and it can help detect those rare cases of malignant transformation of these developmental tumours. ( info)

4/1512. New sonographic appearance of hepatic mesenchymal hamartoma in childhood.

    We present clinical, radiographic, and sonographic findings in 3 children with hepatic mesenchymal hamartoma, a rare benign tumor of childhood. The presence of round hyperechoic parietal nodules within the cystic spaces of the hamartomas is a new sonographic finding. ( info)

5/1512. Retrorectal cystic harmatoma (tailgut cyst) in an infant: case report.

    We report the case of a day old infant who presented with a large cystic swelling in the sacroccoygeal area distorting the gluteal folds and displacing the anus anteriorly. Rectal examination revealed less than twenty five per cent of the lesion in retrorectal space, plain x-rays did not show any calcification. The infant had excision surgery at seven days of age and did well thereafter. Although most TGC cases were reported in adults the present case fulfills the anatomical and histological criteria for diagnosis, and it may be the first such case in a child less than one month old. ( info)

6/1512. Surgically created fourth-third cranial nerve communication: temporary success in a child with bilateral third nerve hamartomas. Case report.

    Shortly after birth, an otherwise healthy infant developed eye deviation and ptosis due to a hamartomatous lesion of the interpeduncular segment of the right oculomotor nerve. The left nerve became similarly involved when the child was 1.5 years of age. Direct nerve repair was not possible. Instead, the trochlear nerve was divided and its proximal end was attached to the distal end of the third nerve. Elevation of the upper eyelid and partial adduction of the eye developed gradually over the ensuing 3 to 5 months. Both functions were lost after an additional 2 months, presumably as a result of tumor recurrence or neuroma formation. This case report shows that surgically created fourth-third cranial nerve communication is feasible and may merit consideration under similar circumstances. ( info)

7/1512. prenatal diagnosis of hepatic mesenchymal hamartoma.

    A case of hepatic mesenchymal hamartoma diagnosed prenatally with ultrasound and confirmed histologically post-delivery is presented. Although histologically benign, this lesion resulted in fetal demise secondary to congestive cardiac failure in the third trimester. The development of non-immune hydrops in association with a fetal hepatic mesenchymal hamartoma is a poor prognostic sign for perinatal survival. ( info)

8/1512. Ectopic hamartomatous thymoma. Report of a case with fine needle aspiration biopsy findings.

    BACKGROUND: Ectopic hamartomatous thymoma is a rare, benign tumor occurring exclusively in the supraclavicular and suprasternal regions. To the best of our knowledge, there are no English-language reports on its cytologic findings. CASE: A fine needle aspiration specimen from a mass in the suprasternal region in a 63-year-old male revealed epithelial cell nests, spindle cells, a cluster of mature adipocytes and a small number of lymphocytes. CONCLUSION: Although ectopic hamartomatous thymoma is very rare, fine needle aspiration cytology may contribute to the correct diagnosis in conjunction with the characteristic clinical findings. ( info)

9/1512. A case of juxtaglomerular cell tumor diagnosed preoperatively.

    A case of juxtaglomerular cell tumor, the fourth case in the world diagnosed preoperatively, was reported. Neither strict sodium restriction nor loading of upright position increased a grade of hyperreninemia observed at recumbant position on ordinary diet, but Pald elevated in response to them. Abnormal glucose tolerance was considered to be due to hypopotassemia. Selective renal arteriography revealed a small number of tumor vessels, a lucent area on the nephrogram and early appearance of the renal vein of the diseased side. Histologically, the tumor contained some canalicular structures among the polygonal nonepithelial tumor cells with rhomboid bodies. These findings suggested that this tumor was a hamartoma originated from the juxtaglomerular apparatus. ( info)

10/1512. Oral-facial-digital syndrome with hypothalamic hamartoma, postaxial ray hypoplasia of the limbs, and vagino-cystic communication: a new variant?

    We report on a 20-month-old girl with hypothalamic hamartoma, left cerebral atrophy, tongue nodules, oral frenula, micrognathia, hypoplasia of the left ulna, the fibulae, and right tibia, polysyndactyly of the hands and feet, vagino-cystic drainage with hydrometrocolpos, megaloureters, and hydronephrosis, agenesis of urethra, complex partial seizures, and central precocious puberty. The differential diagnosis is discussed. We conclude that the malformation complex in this girl is an oral-facial-digital syndrome, but is different from any of the 11 known subtypes. ( info)
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