Cases reported "Bone Diseases"

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1/13. A heterotopic cerebellum presenting as a suprasellar mass with associated nasopharyngeal teratoma.

    We present a case of nasopharyngeal teratoma that was discovered in association with a suprasellar heterotopic cerebellum in a newborn. Well-differentiated, heterotopic, cerebellar masses have been reported in the orbits, spine, and frontal encephalocele but not, to our knowledge, in the suprasellar region. In this report, we describe the imaging findings and discuss the possible origins of the two masses discovered in this case.
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ranking = 1
keywords = sella
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2/13. Visual improvement after chiasmapexy for primary empty sella turcica.

    Postoperative visual improvement is described in a patient found to have primary empty sella turcica on evaluation of her sole symptom, progressive painless visual impariment. Chiasmal elevation by filling the sella turcia with muscle was found to be an alternative to opening the lamina terminalis and may be preferred in cases of empty sella which lack dense adhesions of the chiasm to the sella floor.
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ranking = 32.495388787756
keywords = sella turcica, turcica, sella
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3/13. A distinctive type of metaphyseal chondrodysplasia with characteristic thickening of the distal ulna and radius: possible metaphyseal chondrodysplasia-Rosenberg.

    We report an 8-year-old boy with a distinctive form of metaphyseal chondrodysplasia (MCD). He presented with moderate disproportionate short stature and bony swelling of his wrists, knees, and ankles. There were severe metaphyseal abnormalities with a honeycomb appearance affecting the distal tibiae and fibulae, proximal tibiae, distal femurs, distal ulnae and radii, and both hands. His thoracolumbar spine was normal. Radiological examination of the mother's forearms revealed widening of the distal radii and short ulnae with hypoplastic distal ends. Rosenberg and Lohr [1986: Eur J Pediatr 145:40-45] reported a four-generational kindred in which affected members had thickening of the wrist proximal to the styloid process of the ulna and thickening of the dorsum sellae. Although many of the radiographic features of this patient are those of MCD-Rosenberg, the skeletal features of our patient do not appear to represent any known classified forms of MCD.
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ranking = 0.16666666666667
keywords = sella
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4/13. sphenoid sinus brown tumor, a mass lesion of occipital bone and hypercalcemia: an unusual presentation of primary hyperparathyroidism.

    Brown tumor is a focal lesion of the bone caused by primary or, less commonly, secondary or tertiary hyperparathyroidism (HPT). While the mandible is the most frequently involved bone in the head and neck region, atypical involvement of the cranium in the area of the sphenoid sinus is exceedingly rare. In the literature, a unique case of brown tumor of the sphenoid sinus was reported in a patient with primary HPT. We present a case of sphenoid sinus and occipital bone brown tumor associated with primary HPT. A 47-yr-old woman presented a 2-yr history of headaches, dizziness, diffuse body and articular pain, fatigue, and a 6-month history of intermittent nausea and vomiting, polydipsia, and polyuria. magnetic resonance imaging (MRI) demonstrated an expansive mass lesion in the sphenoid sinus with erosion of the sellar floor and medial wall of the right orbit, and expansion in the medulla of bone. Examination of biopsy specimens obtained from sphenoid sinus mass confirmed the diagnosis of brown tumor. The biochemical laboratory studies showed elevation of parathyroid hormone and confirmed the diagnosis of primary HPT. Excision of a parathyroid adenoma affected the metabolic status into normalizing. At the follow-up of 12 months postoperatively, the size of sphenoid sinus brown tumor decreased and the mass of occipital bone disappeared. In conclusion, this is a first report of primary HPT masquerading as a destructive fibrous sphenoid sinus brown tumor associated with a mass lesion of occipital bone and hypercalcemia in the literature.
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ranking = 0.16666666666667
keywords = sella
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5/13. Painful ophthalmoplegia secondary to a mucocele involving the sella turcica, superior orbital fissure, and sphenoid sinus.

    A case of painful ophthalmoplegia associated with an extensive lesion involving the sella turcica, superior orbital fissure, and sphenoid sinus in a 57-year-old man is reported. Even though nasal and ocular symptoms and signs represent the usual features of sphenoidal mucoceles, extension to the intracranial cavity as seen in this lesion is rare. Surgical exploration via a sublabial, transseptal approach revealed a mucocele of the sphenoid sinus. This case exhibited extensive and aggressive behavior simulating a malignant neoplasm.
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ranking = 31.995388787756
keywords = sella turcica, turcica, sella
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6/13. Transient intrasellar collection of air during bromocriptine treatment of a prolactinoma.

    A patient is described with a large prolactinoma with expansion into the sphenoid sinus. During bromocriptine treatment an intrasellar area of gas developed, continuous with the air in the sinus. No operation was performed, bromocriptine was continued. During the regression of the tumor, the area of air disappeared.
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ranking = 0.83333333333333
keywords = sella
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7/13. Panhypopituitarism resulting from Hodgkin's disease of the nasopharynx.

    Nasopharyngeal involvement by Hodgkin's disease is rare and may result in deafness, headaches, nasal obstructions and other symptoms. Compression of the pituitary gland with resultant panhypopituitarism has not been reported in nasopharyngeal Hodgkin's disease. This paper documents a patient in whom Hodgkin's disease of the nasopharynx eroded the bony sella turcica and compressed the pituitary gland causing anterior pituitary insufficiency. The patient presented with a skull x-ray and history compatible with a pituitary neoplasm. The diagnosis was established only by surgical exploration.
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ranking = 6.3990777575512
keywords = sella turcica, turcica, sella
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8/13. Computed tomography of the sellar spine.

    The authors report the CT scan findings in a case of sellar spine. This osseous spine which arises in the midline of the anterior aspect of the dorsum sellae and is directed toward the center of the sella turcica has already been described on specimens and on plain films but never on CT scans. The CT scan findings confirm the normal appearance of the surrounding structures.
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ranking = 7.3990777575512
keywords = sella turcica, turcica, sella
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9/13. A suprasellar atypical teratoma presenting as an intrasellar mass: a case report.

    Intracranial atypical teratomas are midline brain tumors with both germinomatous and teratomatous elements. When they occur in the suprasellar region, they usually present with a classic triad of visual disturbances, diabetes insipidus, and hypopituitarism. We report the case of a suprasellar atypical teratoma that presented as an intrasellar lesion and caused secondary amenorrhea in a 15-year-old girl.
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ranking = 1.8333333333333
keywords = sella
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10/13. Acquired spontaneous, nontraumatic normal-pressure cerebrospinal fluid fistulas originating from the middle fossa.

    Five cases of spontaneous cerebrospinal fluid (CSF) fistulas originating from the middle fossa are described, including one patient with an "empty" sella. It is suggested that acquired meningocele and meningoencephalocele progress to become CSF fistulas. The normal anatomical and physiological factors which give rise to acquired bone/dural/arachnoid dehiscences are discussed and illustrated.
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ranking = 0.16666666666667
keywords = sella
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