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Articles by H Hosogi
Total Records ( 1 ) for H Hosogi
  H Hosogi , S Nagayama , N Kanamoto , A Yoshizawa , T Suzuki , K Nakao and Y. Sakai
 

Familial adenomatous polyposis (FAP) patients develop various extracolonic lesions, among which functional adrenocortical neoplasms are infrequent. A 44-year-old woman was hospitalized because of pseudo-Meigs' syndrome, caused by bilateral ovarian metastases from an advanced ascending colon cancer due to FAP of intermediate type. Furthermore, bilateral adrenocortical adenomas were detected, and functional analyses showed a hormonal secretion pattern consistent with Cushing's syndrome. She underwent a right hemicolectomy with extirpation of bilateral ovaries. At 10 months post-operative with no detectable metastatic lesions, the residual colorectum and the larger, left adrenal gland were resected, and the hormonal hypersecretion was normalized. Direct sequencing of the adenomatous polyposis coli (APC) gene revealed a nonsense germline mutation at codon 1577 and an additional nonsense somatic mutation at codon 554 in cancer tissues. Biallelic APC inactivation due to loss of the normal allele was evident in the adrenocortical adenoma. There were no hypermethylated CpG islands detected in APC promoter regions. Immunostaining for β-catenin revealed diffuse cytoplasmic expression in resected tissues including adrenocortical adenoma. Biallelic APC inactivation may play a role in developing cortisol-secreting adrenocortical adenoma in FAP patients. It is noteworthy that biallelic APC inactivation was caused in different ways in different tumors from the same individual.

 
 
 
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