ABSTRACT
ABSTRACT Our patient was a 34 year-old male who presented with a painless conjunctival mass that had developed 3 months before his first visit. On performing slit-lamp biomicroscopy, a lobulated pink-yellowish solid mobile mass was observed on the nasal bulbar conjunctival surface of his left eye. The tumor was excised, and histopathologic examination of the tumor revealed a sebaceous adenoma. Systemic examination was normal. No recurrence was observed during the 24-month follow-up period. Sebaceous adenoma of the bulbar conjunctiva is an extremely rare benign tumor, which may be observed to be isolated in the absence of malignancy.
RESUMO Nosso paciente era um homem de 34 anos que apresentou uma massa conjuntival indolor desde há 3 meses antes da primeira consulta. Na biomicroscopia por lâmpada de fenda, observa-se uma massa rosa-amarelada, sólida, móvel e lobulada na superfície conjuntival bulbar nasal, em seu olho esquerdo. O tumor foi retirado e o exame histopatológico demonstrou um adenoma sebáceo. O exame sistêmico era normal. Nenhuma recidiva foi observada durante os 24 meses de acompanhamento. Adenoma sebáceo da conjuntiva bulbar é um tumor benigno extremamente raro e pode ser visto isolado, sem quaisquer doenças malignas associadas.
Subject(s)
Humans , Male , Adult , Sebaceous Gland Neoplasms/pathology , Adenoma/pathology , Conjunctival Neoplasms/pathology , Sebaceous Gland Neoplasms/surgery , Adenoma/surgery , Conjunctiva/pathology , Conjunctival Neoplasms/surgeryABSTRACT
Objective To investigate the expressions of signal transducer and activator of transcription factor 3 (STAT3),Bcl-2,and matrix metalloproteinase 2 (MMP2) in colorectal adenomas and adenocarcinomas,and the relationship of those factors with the colorectal clinicopathological features and prognosis of intestinal adenocarcinomas,and explore their roles in invasion,metastasis,and prognosis of a colorectal cancer.Methods The samples were selected from Dongyang City People's Hospital from January 2011 to January 2012,including 50 cases of paraffin-coded colorectal mucosas with chronic inflammation,50 cases of paraffincoded colorectal adenomas,and 100 cases of paraffin-coded colorectal adenocarcinomas (35 cases with metastasis and 65 cases without distant metastasis).Envison two method was used to detect the expressions of STAT3,Bcl-2,and MMP2 in each sample.Results The expressions of STAT3,Bcl-2,and MMP2 in colorectal adenomas and adenocarcinomas were significantly higher than those in colorectal mucosas with chronic inflammation (P ＜ 0.05).The expressions of STAT3 and MMP2 in colorectal adenocarcinomas with distant metastasis were significantly higher than that those without distant metastasis (P ＜ 0.05).The expression of BCL-2 had no significant difference between colorectal adenocarcinomas with and without distant metastasis (P ＞ 0.05).Conclusions STAT3,Bcl-2 and MMP2 were associated with occurrence and development of colorectal carcinoma.STAT3 was associated with distant metastasis of colorectal carcinoma and might indicate a poor prognosis.STAT3 might be used as a candidate clinical sign for recurrence,metastasis,and poor survival prognosis of colorectal adenocarcinoma.
ABSTRACT
A case of a 84 year-old woman with a history of colonoscopy performed in May 2008, where a 5 mm polyp was detected from the hepatic flexure. It was removed by biopsy and histology showed a tubular adenoma with low-grade dysplasia. In May 2011, the patient consulted due to mild to moderate pain in both hypochondria of 6 months of duration accompanied by bloating and belching. A control colonoscopy was indicated, which was held in June 2011, and showed a 2 cm polyp in ascending colon, this was resected with polypectomy snare. In the vicinity there was a 3-mm polyp that was removed with biopsy forceps. Histological examination showed in the bigger lesion a moderately differentiated grade 2 invasive tubular adenocarcinoma, with superficial and focal invasion of the submucosa, developed in adenoma with free surgical margin (1.7 mm), no vascular, lymphatic invasion or tumor budding were found. The smaller lesion was reported as tubular adenoma with low grade dysplasia. Colorectal cancer epidemiology, indications for controls after colonoscopic polypectomy of adenomas, especially those at high risk, histopathological risk factors for adenocarcinomas developed in adenomas and the need to monitor these patients annually with occult blood test stool are discussed between the control colonoscopies indicated.
Se presenta el caso de una mujer de 84 años, con antecedentes de colonoscopia efectuada en mayo de 2008 donde se le detectó un pólipo de 5 mm del ángulo hepático del colon, el que fue extraído por biopsia y cuyo estudio histológico demostró un adenoma tubular con displasia de bajo grado. En mayo de 2011, consulta por dolor leve a moderado en ambos hipocondrios de 6 meses de evolución acompañados de meteorismo y eructos. Se indicó ileocolonoscopia, la que se realizó en junio de 2011 y demostró un pólipo del colon ascendente de 2 cm, que fue resecado con asa de polipectomía; y cercano a éste, un pólipo de 3 mm que se extirpó con pinza biopsia. El examen histológico informó adenoma tubular con displasia moderada en la lesión de menor tamaño y adenocarcinoma tubular invasor moderadamente diferenciado grado 2 de Broders, con invasión focal superficial de la submucosa, desarrollado en adenoma. Límites quirúrgicos libres de lesión, sin invasión vascular sanguínea, linfática ni budding tumoral con límite quirúrgico profundo a 1,7 mm de la lesión. Se comentan la epidemiología del cáncer rectocolónico, la indicación de los controles colonoscópicos luego de la polipectomía de los adenomas, en especial de aquellos de alto riesgo, los factores de riesgo anatomopatológicos de carcinomas desarrollados en adenomas, y la necesidad de controlar anualmente a estos pacientes con colonoscopias de vigilancia.