Cases reported "Hamartoma"

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1/212. 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.
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2/212. 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.
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3/212. 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.
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4/212. hamartoma of the urinary bladder.

    BACKGROUND: Hamartomas of the urinary bladder are extremely rare. We report on a case in a 58-year-old female who presented with the chief complaint of pain on urination. methods/RESULTS: cystoscopy revealed a solid tumor on the left posterior wall of the bladder. Transurethral resection of the tumor failed to provide a definitive pathological diagnosis of the tumor. Thus, we performed partial cystectomy. The pathological diagnosis was hamartoma arising from the urinary bladder. CONCLUSION: This is the ninth case diagnosed as urinary bladder hamartoma to be reported in the literature.
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5/212. Total gastrointestinal endoscopy in the management of peutz-jeghers syndrome.

    peutz-jeghers syndrome was diagnosed in a 51-year-old woman presenting with iron deficiency anaemia. Upper gastrointestinal endoscopy and colonoscopy revealed several hamartomatous polyps in the stomach, duodenum and colon, which were removed. At a combined surgical-endoscopic procedure, 42 hamartomatous polyps were removed from the small intestine by snare polypectomy. This enteroscopic procedure reduces symptoms, may protect against future intestinal obstructive episodes and their associated surgery, and may reduce the risk of developing gastrointestinal malignancy.
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6/212. Chondroid hamartoma presenting as a neonatal nasal mass.

    We present a case of a 3-month-old female with a right nasal mass. Upon evaluation with computed tomography, magnetic resonance imaging and angiography, a large right intranasal mass extending through the cribiform plate, displacing the dura, was noted. The patient underwent a combined midfacial degloving and bifrontal craniotomy for complete resection of the tumor mass. Pathologic evaluation demonstrated a mesenchymal tumor with spindle and stellate cells from which islands of immature cartilage emerged. The spectrum of histologic features closely resembled a mesenchymal chondroid hamartoma typically located in the chest wall. It is the first reported case of a chondroid hamartoma of the head and neck in the literature to date. We examine the characteristics and treatment of this unusual tumor.
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7/212. Huge hamartoma with inverted papilloma in the nasal cavity.

    We report clinical experience in managing a 46-year-old Japanese man with long-standing nasal obstruction resulting from a huge left nasal mass. Computed tomography, magnetic resonance imaging and biopsy were used to make a provisional diagnosis of inverted papilloma. The mass was resected via a frontal approach combined with rhinotomy. Histopathologic examination of the resected specimen was consistent with a hamartoma that included an inverted papilloma on a portion of its surface. In addition to being rare tumors in the nasal cavity, we believe that our patient's tumor the largest nasal hamartoma ever reported.
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8/212. Malignant glial tumor arising from the site of a previous hamartoma/ganglioglioma: coincidence or malignant transformation?

    Gangliogliomas are generally considered benign tumors. Although more commonly found in the brain, spinal cord ganglioglioma is a well established, albeit infrequent, entity. We describe a 2-decade clinical course of a patient initially diagnosed with a thoracolumbar 'glial-neuronal hamartoma' at age 4. Seventeen years after his first operation, local recurrence was noted. Despite subsequent multiple gross total resections and adjuvant therapy, histologic features became increasingly ominous and ultimately proved fatal. This is an unusual report and histologic presentation of a resected spinal cord ganglioglioma recurring as an anaplastic ependymoma/astrocytoma and subsequently a glioblastoma. It is quite likely that the originally resected ganglioglioma was actually part of a primitive neuroectodermal tumor which had undergone extensive maturation.
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9/212. Splenic vascular lesions: unusual features and a review of the literature.

    hamartoma and peliosis are uncommon splenic lesions. Approximately 120 splenic hamartomas and 40 splenic peliosis have been reported in the English literature. In the present study, a unique case of multiple splenic hamartomas with peliosis was reported. The splenic lesions were incidental findings in a 36-year-old man with ruptured sarcomatoid renal cell carcinoma. They were diagnosed clinically as metastatic renal cell carcinoma. On pathological examination, peliosis was noted in the splenic hamartomas as well as in the splenic parenchyma. In addition, the clinicopathological features of five other splenic hamartomas (including one giant hamartoma) noted in our department were presented. A re-evaluation of the features of the splenic hamartomas documented in the English literature was also done.
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10/212. Nasal chondromesenchymal hamartoma of infancy: the first Japanese case report.

    The first Japanese case of nasal chondromesenchymal hamartoma, a rare infantile nasal neoplasm, is presented. A 4-month-old Japanese boy was referred to our Centre because of intranasal mass and oculomotor disturbance. Radiological images showed the intranasal tumor extending to the paranasal sinus, orbit, and anterior frontal fossa. Subtotal resection and radiation therapy to residual tumor were performed. There has been no recurrence of the tumor for 13 years. Histologically, the lesion demonstrated admixture of various mesenchymal elements, including cellular spindle cell stroma with occasional myxoid change, nodules of mature/immature cartilaginous tissue, focal osteoclast-like giant cells, and erythrocyte-filled spaces resembling aneurysmal bone cyst. The histology was consistent with the findings presented by McDermott et al. 1986. Immunohistochemically, the spindle cells were positive for vimentin and smooth muscle actin. chondrocytes in the mature cartilaginous tissue were positive for S-100 and vimentin; chondrocytes in the immature cartilaginous tissue were positive for S-100, vimentin, and smooth muscle actin. Ultrastructurally, the spindle cells showed features of either fibroblast or myofibroblast.
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