ABSTRACT
Pseudoepitheliomatous hyperplasia is a benign condition that may be caused by prolonged inflammation, chronic infection, and/or neoplastic conditions of the mucous membranes or skin. Due to its histological resemblance to well-differentiated squamous cell carcinoma, pseudoepitheliomatous hyperplasia may occasionally be misdiagnosed as squamous cell carcinoma. The importance of pseudoepitheliomatous hyperplasia is that it is a self-limited condition that must be distinguished from squamous cell carcinoma before invasive treatment. We report here on a rare case of esophageal pseudoepitheliomatous hyperplasia in a 67-year-old Korean woman with a lye-induced esophageal stricture. Although esophageal pseudoepitheliomatous hyperplasia is infrequently encountered, pseudoepitheliomatous hyperplasia should be considered in the differential diagnosis of esophageal lesions.
Subject(s)
Aged , Female , Humans , Carcinoma, Squamous Cell/diagnosis , Diagnosis, Differential , Esophageal Neoplasms/diagnosis , Esophageal Stenosis/chemically induced , Esophagoscopy , Hyperplasia/diagnosis , Iodides/chemistry , Lye/toxicityABSTRACT
Pseudoepitheliomatous hyperplasia is a benign condition that may be caused by prolonged inflammation, chronic infection, and/or neoplastic conditions of the mucous membranes or skin. Due to its histological resemblance to well-differentiated squamous cell carcinoma, pseudoepitheliomatous hyperplasia may occasionally be misdiagnosed as squamous cell carcinoma. The importance of pseudoepitheliomatous hyperplasia is that it is a self-limited condition that must be distinguished from squamous cell carcinoma before invasive treatment. We report here on a rare case of esophageal pseudoepitheliomatous hyperplasia in a 67-year-old Korean woman with a lye-induced esophageal stricture. Although esophageal pseudoepitheliomatous hyperplasia is infrequently encountered, pseudoepitheliomatous hyperplasia should be considered in the differential diagnosis of esophageal lesions.
Subject(s)
Aged , Female , Humans , Carcinoma, Squamous Cell/diagnosis , Diagnosis, Differential , Esophageal Neoplasms/diagnosis , Esophageal Stenosis/chemically induced , Esophagoscopy , Hyperplasia/diagnosis , Iodides/chemistry , Lye/toxicitySubject(s)
Chlorides/chemistry , Iodides/chemistry , Bromides/chemistry , Electrons , Electrochemistry , Spectrum AnalysisABSTRACT
The preparation of Li [[12 C4] I3. H2O and M [12C4]2] 3 [M = Na, K, Cs; 12 C4 = 12- Crown-4 [1, 4, 7, 10-tetra oxacy-clododecan]] was reported, electronic, Raman and NMR spectroscopy were presented. The results indicated that Li fits in the hole of the 12-Crown-4 and forms a complex whose stoichiometry is 1: 1: 1. Na+, K+ and Cs+ [with stoichiometries 1: 2: 1] would most possibly have sandwich structures. Raman Spectra indicate that the I3- of the potassium complex is linear and symmetric. 1HNMR spectra prove the existence of water of crystallization in the Li complex. The 1H and 13 C chemical shifts of the Li complex are more down-field shifted relative to the Na, K and Cs complexes, despite the less electropositive character, this indicated that the Li complex is of different structure