located in multiple bones
Gigante Condromatosis Sinovial
Condromatosis sinovial gigante es una variante de condromatosis sinovial, cuando uno o múltiples condromas ampliar hasta más de 1 cm y puede ser tan grande como 20 cm.
Estas lesiones son tan raras que los datos sobre la distribución por edades no existen. El autor se ha encontrado con varias de estas lesiones en los pacientes en sus 20's, 30's y 40's.
Estos tumores pueden ser totalmente asintomáticos, o pueden presentarse como una masa dolorosa cerca de un tendón o una articulación. Una masa se ve en los tejidos blandos cerca de la articulación que tiene características de matriz condroide.
Escisión simple es curativa. La recurrencia es rara.
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Estas lesiones son tan raras que los datos sobre la distribución por edades no existen. El autor se ha encontrado con varias de estas lesiones en los pacientes en sus 20's, 30's y 40's.
Estos tumores pueden ser totalmente asintomáticos, o pueden presentarse como una masa dolorosa cerca de un tendón o una articulación. Una masa se ve en los tejidos blandos cerca de la articulación que tiene características de matriz condroide.
Escisión simple es curativa. La recurrencia es rara.
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Glomus Tumor
Glomus tumor is a rare and benign vascular tumor. The lesions are usually solitary but reports of multifocal tumors have been published.
The lesions present most frequently during the fourth and fifth decade of life although they can be found in any age and at any site. The subungual tumors affect women three times more commonly than men.
Clinically, glomus tumors are characterized by a triad of sensitivity to cold, localized tenderness and severe intermittent pain. The pain can be excruciating and is described as a burning or bursting. The exact cause of the pain is not completely understood, but nerve fibers containing the pain neurotransmitter substance P have been identified in the tumor.Radiologically, glomus tumors appear as well circumscribed osteolytic lesions. The lesion shows either bone erosion or invasion depending on where it arises. A sclerotic border is present due to the slowly enlarging mass. CT scan shows a non-specific subungual or soft tissue mass. T1 MRI is not as useful for subungual lesions as it only demonstrates a dark, well delineated mass. Glomus tumors appear as a very high and homogeneous signal intensity on T2 weighted images. MRI is useful for the detection of lesions in the soft tissues. The radiological differential includes epidermal inclusion cyst, enchondroma, chronic osteomyelitis, sarcoidosis, metastatic carcinoma, subungual melanoma and osteoid osteoma.
Treatment of glomus tumors consists of surgical excision. Repair of the nail bed must be performed after the removal of subungual lesions.
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The lesions present most frequently during the fourth and fifth decade of life although they can be found in any age and at any site. The subungual tumors affect women three times more commonly than men.
Clinically, glomus tumors are characterized by a triad of sensitivity to cold, localized tenderness and severe intermittent pain. The pain can be excruciating and is described as a burning or bursting. The exact cause of the pain is not completely understood, but nerve fibers containing the pain neurotransmitter substance P have been identified in the tumor.Radiologically, glomus tumors appear as well circumscribed osteolytic lesions. The lesion shows either bone erosion or invasion depending on where it arises. A sclerotic border is present due to the slowly enlarging mass. CT scan shows a non-specific subungual or soft tissue mass. T1 MRI is not as useful for subungual lesions as it only demonstrates a dark, well delineated mass. Glomus tumors appear as a very high and homogeneous signal intensity on T2 weighted images. MRI is useful for the detection of lesions in the soft tissues. The radiological differential includes epidermal inclusion cyst, enchondroma, chronic osteomyelitis, sarcoidosis, metastatic carcinoma, subungual melanoma and osteoid osteoma.
Treatment of glomus tumors consists of surgical excision. Repair of the nail bed must be performed after the removal of subungual lesions.
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Granulocytic Sarcoma in bone
Granulocytic sarcoma (GS) is a solid tumor of immature granulocytes that most commonly occurs in a patient with leukemia or some other myleoproliferative disorder. Osseous lesions are most common in the skull and the orbit.
Peak incidence occurs in the third and fourth decades of life.
The majority of osseous granulocytic sarcomas present with skeletal pain referable to the location of the lesion.The usual finding on radiographs is lytic destruction of the cortex and the medulla with adjacent soft tissue mass and periosteal reaction.
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Peak incidence occurs in the third and fourth decades of life.
The majority of osseous granulocytic sarcomas present with skeletal pain referable to the location of the lesion.The usual finding on radiographs is lytic destruction of the cortex and the medulla with adjacent soft tissue mass and periosteal reaction.
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Granuloma Eosinófilo
Granuloma eosinofílico (GE) es una proliferación solitario, no neoplásica de histiocitos. EG es parte de un espectro de histiocitosis de células de Langerhans, anteriormente conocida como histiocitosis X.
La razón hombre-mujer es de dos a uno. Ocurre más comúnmente en niños de 5 a 10 y es poco frecuente en los negros.
EG es normalmente sintomático. El dolor local, inflamación y dolor son comunes y la VSG puede estar elevada. El aspecto radiológico de EG no es específica y difiere según la ubicación.
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La razón hombre-mujer es de dos a uno. Ocurre más comúnmente en niños de 5 a 10 y es poco frecuente en los negros.
EG es normalmente sintomático. El dolor local, inflamación y dolor son comunes y la VSG puede estar elevada. El aspecto radiológico de EG no es específica y difiere según la ubicación.
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