Pituitary adenomas are considered benign tumors, but they may become aggressive and invade surrounding tissues.
Some studies have shown that loss of adhesion protein expression may be involved in the pathogenesis of pituitary adenomas and contribute to tumor aggressiveness and invasiveness (4-7).
The 10,220 patients who underwent a second screening colonoscopy after an index colonoscopy that led to removal of one or two nonadvanced adenomas
and advanced lesions (tubulovillous adenomas
, lesions with high-grade dysplasia, carcinoma in situ and adenocarcinoma), of any size, were included in the calculation of the ADR.
El 80 % son de origen epitelial y el 75 % son benignos; el mas frecuente es el adenoma
Here, we are presenting the cases of pleomorphic adenomas
of minor salivary glands where highest number of cases is seen in soft palate (12 cases out of 34) but majority of cases are from sites other than aerodigestive tract (21 cases out of total 34).
Classification of adenomas
is complex and relies on correlation of clinical, radiographic, serologic, histologic, and immunohistochemical findings, and rarely upon ultrastructural examination.
Immunohistochemical evaluation of cartilagederived morphogenic protein-1 and -2 in normal human salivary glands and pleomorphic adenomas
In recent years, preoperative and perioperative localization techniques for parathyroid adenomas
have been developed and, for this reason, minimally invasive parathyroidectomies (MIPs), such as video-assisted endoscopic and mini incision parathyroidectomies, have been frequently applied.
It was also shown that the combined use of ultrasonography and 99mTc-MIBI scintigraphy methods is suitable in determining the place of adenomas
of the gallbladder are mostly observed in cattle and rarely in other domestic animals (CULEN & POPP, 2002) or wild animals (STAROST & MARTINO, 2002; JAKAB et al.
Wang y Reider en 1977 escribieron: "Los llamados doble adenomas
, si en verdad existen, son extremadamente raros, y no hemos encontrado un solo caso desde 1958" (4).
Commonly known as polyps, colorectal adenomas
are benign tumors that can develop into cancer.
Meanwhile, dynamic contrast MRI and BIPSS were helpful in diagnosing under these circumstances, as the former test is useful in both evaluating the pituitary adenoma
and assessing its location, [sup] positive-rate of ACTH-secreting adenomas
is more common in adults but it has been reported that about 10% of nephrogenic adenomas
affect children .