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1.
Arch Pathol Lab Med ; 115(9): 958-60, 1991 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-1718242

RESUMEN

Two distinct papillary-cystic neoplasms were found in the pancreas of a young black woman. She presented to the hospital in her first trimester of pregnancy with the chief complaint of sharp right upper quadrant abdominal pain that radiated to the right shoulder. This was associated with jaundice, vomiting, and pruritus. On examination, a large, nontender, midepigastric abdominal mass was palpated. Serum liver enzyme levels were moderately to markedly elevated. An abdominal computed tomographic scan revealed a 9-cm solid and cystic mass located within the head of the pancreas with associated marked bile duct dilatation. A total pancreatectomy was performed. Gross examination of the specimen revealed two separate well-circumscribed tumors of unequal size. The larger one was found within the head of the pancreas and contained multiple hemorrhagic, cystic cavities. The smaller one, located within the tail, consisted primarily of solid tissue. Microscopic examination of both lesions revealed papillary-cystic neoplasms. To our knowledge, this is the first report of two synchronous papillary-cystic tumors of the pancreas and the first reported demonstration of the potential of this tumor for multicentricity.


Asunto(s)
Carcinoma Papilar/patología , Quistes/patología , Neoplasias Primarias Múltiples/patología , Neoplasias Pancreáticas/patología , Adulto , Carcinoma Papilar/metabolismo , Femenino , Humanos , Neoplasias Primarias Múltiples/metabolismo , Neoplasias Pancreáticas/metabolismo , Coloración y Etiquetado
2.
Vox Sang ; 60(3): 165-8, 1991.
Artículo en Inglés | MEDLINE | ID: mdl-1862640

RESUMEN

We report a preliminary study on whether syphilis serology might be reactive in some blood donors at risk for human immunodeficiency virus (HIV) infection. We retrospectively analyzed voluntary blood donations with reactive Treponema pallidum antibody (TPA) tests according to the type of donation, the presence of other safety markers, confidential unit exclusion, syphilis diagnosis, and HIV risk factors. Over 2 years (1987-1988), 1 in 8,900 regular homologous donations (n = 258,610) was TPA positive as compared with 1 in 2,200 directed donations (n = 6,685) and 1 in 300 autologous donations (n = 8,870; p less than 0.05 for both). The rate in directed donations was not significantly higher than in first-time regular donors (1 in 4,800; n = 57,000). TPA-positive donations had higher rates of antibody to hepatitis B core antigen and confidential unit exclusion than TPA-negative donations. Ten TPA-positive homologous or directed donors had latent or previously treated syphilis (1 in 26,500 such donations), and 2 of these had HIV risk factors. None of the autologous donors were determined to have active syphilis. Syphilis serology in blood donors bears further scrutiny as a possible surrogate marker for HIV risk.


Asunto(s)
Donantes de Sangre , Infecciones por VIH/prevención & control , Tamizaje Masivo/métodos , Serodiagnóstico de la Sífilis/métodos , Biomarcadores , Humanos , Estudios Retrospectivos , Factores de Riesgo
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