Benign neoplasia of the duodenum are very rare. Moreover, duodenal tubulovillous adenomas are more uncommon lesions. The microscopic structure of tubulovillous adenoma has frond-like projection of mucosa with branchin...Benign neoplasia of the duodenum are very rare. Moreover, duodenal tubulovillous adenomas are more uncommon lesions. The microscopic structure of tubulovillous adenoma has frond-like projection of mucosa with branching papillary structure and generally upward growth into the lumen. We describe a 72-year-old man who showed aduodenal tubulovillous adenoma with unusual inverted cystic growth pattern. Interestingly, this tubulovillous adenomatous lesion was interrupted by gastric metaplasia in the deep portion of the cyst and was closely surrounded by Brunner’s glands. Although histogenesis of gastric metaplasia of duodenum is not fully understood, Brunner’s glands has been suggested as a precursor for gastric metaplasia. Therefore, these findings argued that this adenoma arises from Brunner’s glands through gastric metaplasia. This is the first case of inverted cystic tubulovillous adenoma involving Brunner’s glands of duodenum with gastric metaplasia.展开更多
BACKGROUND:Brunner's gland adenoma (BGA) is an unusual benign neoplasm arising from Brunner's glands in the duodenum.When symptomatic it presents either with duodenal obstruction or bleeding.However,pancreatit...BACKGROUND:Brunner's gland adenoma (BGA) is an unusual benign neoplasm arising from Brunner's glands in the duodenum.When symptomatic it presents either with duodenal obstruction or bleeding.However,pancreatitis secondary to ampullary obstruction from a BGA is very rare.METHODS:A 23-year-old female presented with recurrent episodes of 'idiopathic' pancreatitis.She was extensively investigated and was found to have a large polypoid BGA,intermittently obstructing the ampulla.This created a ball-valve effect causing secondary intermittent obstruction of the pancreatic duct resulting in pancreatitis.The condition was cured surgically,through transduodenal excision of the BGA.We reviewed the surgical literature pertaining to these unusual and similar causes of obstructive pancreatitis,not related to gallstones.RESULTS:BGA of the duodenum is a rare cause of pancreatitis.Extensive investigations should be carried out in all cases of unexplained pancreatitis before classifying the condition as 'idiopathic'.Discovery of a lesion of this nature gives an opportunity to provide a permanent surgical cure.CONCLUSIONS:BGA adds an unusual etiology for pancreatitis.All patients with pancreatitis should undergo extensive investigations before being termed 'idiopathic'.Surgical excision of the BGA provides a definitive curative treatment for the adenoma and pancreatitis.展开更多
BACKGROUND Brunner’s gland hyperplasia(BGH)is a rare benign lesion of the duodenum.Lipomatous pseudohypertrophy(LiPH)of the pancreas is an extremely rare disease.Because each condition is rare,the probability of pure...BACKGROUND Brunner’s gland hyperplasia(BGH)is a rare benign lesion of the duodenum.Lipomatous pseudohypertrophy(LiPH)of the pancreas is an extremely rare disease.Because each condition is rare,the probability of purely coincidental coexistence of both conditions is extremely low.CASE SUMMARY We report a 26-year-old man presenting to our hospital with symptoms of recurrent upper gastrointestinal bleeding.Upper gastrointestinal endoscopy showed a huge pedunculated polypoid lesion in the duodenum with bleeding at the base of the lesion.Histopathological examination of the duodenal biopsy specimens showed BGH.Besides,abdominal computed tomography and magnetic resonance imaging revealed marked fat replacement over the entire pancreas,confirmed by histopathological evaluation on percutaneous pancreatic biopsies.Based on the radiological and histological findings,LiPH of the pancreas and BGH were diagnosed.The patient refused any surgical intervention.Therefore,he was managed with supportive treatment.The patient’s symptoms improved and there was no further bleeding.CONCLUSION This is the first well-documented case showing the coexistence of LiPH of the pancreas and BGH.展开更多
AIM:To present computed tomography(CT) findings of different histological subtypes of parotid gland masses in detail and to establish diagnostic strategy.METHODS:From January 2009 to November 2011,56 patients were col...AIM:To present computed tomography(CT) findings of different histological subtypes of parotid gland masses in detail and to establish diagnostic strategy.METHODS:From January 2009 to November 2011,56 patients were collected through the histopathology and Picture Archiving and Communication Systems records,which revealed 5 basal cell adenoma(BCA),16 pleomorphic adenoma(PA),25 Warthin's tumor(War-T),3 Kimura's disease(KD) and 7 parotid carcinoma(PCa) cases.All the CT images were retrospectively analyzed by two radiologists in consensus,based on their description of morphology(location,number,size,margin and fibrous capsule) and enhancement patterns of masses.In addition,the diagnostic efficiency of diagnostic strategy is tested.RESULTS:War-T and BCA patients' mean age was 59.9 ± 12.6 years and 58.4 ± 18.2 years;the significant difference was seen in War-T vs PA and BCA vs PA.About 40% of War-Ts presented with bilateral multifocal lesions,a higher ratio than others.Seventy two percent of War-Ts were limited to the superficial lobe,followed by BCA 60% and PA 40%.Vessel facing sign and enlarged lymph nodes were both frequent in War-T,which respectively accounts for 84% and 76% of cases.Rapid contrast enhancement and decreases were unique for War-T.BCA and PA showed obvious delayed enhancement.The diagnostic strategy of parotid gland tumor had a good diagnostic efficiency,with high accuracy,sensitivity and specificity.CONCLUSION:Determination of the histological subtypes of parotid gland masses might be possible based on CT findings and clinical data.A diagnostic strategy with high diagnostic efficiency was established.展开更多
BACKGROUND Duodenal Brunner's gland hyperplasia(BGH)is a therapeutic target when complications such as bleeding or gastrointestinal obstruction occur or when malignancy cannot be ruled out.Herein,we present a case...BACKGROUND Duodenal Brunner's gland hyperplasia(BGH)is a therapeutic target when complications such as bleeding or gastrointestinal obstruction occur or when malignancy cannot be ruled out.Herein,we present a case of large BGH treated with endoscopic mucosal resection(EMR).CASE SUMMARY An 83-year-old woman presented at our hospital with dizziness.Blood tests revealed severe anemia,esophagogastroduodenoscopy showed a 6.5 cm lesion protruding from the anterior wall of the duodenal bulb,and biopsy revealed the presence of glandular epithelium.Endoscopic ultrasonography(EUS)demonstr-ated relatively high echogenicity with a cystic component.The muscularis propria was slightly elevated at the base of the lesion.EMR was performed without complications.The formalin-fixed lesion size was 6 cm×3.5 cm×3 cm,showing nodular proliferation of non-dysplastic Brunner's glands compartmentalized by fibrous septa,confirming the diagnosis of BGH.Reports of EMR or hot snare polypectomy are rare for duodenal BGH>6 cm.In this case,the choice of EMR was made by obtaining information on the base of the lesion as well as on the internal characteristics through EUS.CONCLUSION Large duodenal lesions with good endoscopic maneuverability and no evident muscular layer involvement on EUS may be resectable via EMR.展开更多
基金Supported by grants from the Italian Ministry of University and Research(MURST)to the Department of Clinical and Experimental Medicine,University Fedefico Ⅱ,Naples,Italy
文摘Benign neoplasia of the duodenum are very rare. Moreover, duodenal tubulovillous adenomas are more uncommon lesions. The microscopic structure of tubulovillous adenoma has frond-like projection of mucosa with branching papillary structure and generally upward growth into the lumen. We describe a 72-year-old man who showed aduodenal tubulovillous adenoma with unusual inverted cystic growth pattern. Interestingly, this tubulovillous adenomatous lesion was interrupted by gastric metaplasia in the deep portion of the cyst and was closely surrounded by Brunner’s glands. Although histogenesis of gastric metaplasia of duodenum is not fully understood, Brunner’s glands has been suggested as a precursor for gastric metaplasia. Therefore, these findings argued that this adenoma arises from Brunner’s glands through gastric metaplasia. This is the first case of inverted cystic tubulovillous adenoma involving Brunner’s glands of duodenum with gastric metaplasia.
文摘BACKGROUND:Brunner's gland adenoma (BGA) is an unusual benign neoplasm arising from Brunner's glands in the duodenum.When symptomatic it presents either with duodenal obstruction or bleeding.However,pancreatitis secondary to ampullary obstruction from a BGA is very rare.METHODS:A 23-year-old female presented with recurrent episodes of 'idiopathic' pancreatitis.She was extensively investigated and was found to have a large polypoid BGA,intermittently obstructing the ampulla.This created a ball-valve effect causing secondary intermittent obstruction of the pancreatic duct resulting in pancreatitis.The condition was cured surgically,through transduodenal excision of the BGA.We reviewed the surgical literature pertaining to these unusual and similar causes of obstructive pancreatitis,not related to gallstones.RESULTS:BGA of the duodenum is a rare cause of pancreatitis.Extensive investigations should be carried out in all cases of unexplained pancreatitis before classifying the condition as 'idiopathic'.Discovery of a lesion of this nature gives an opportunity to provide a permanent surgical cure.CONCLUSIONS:BGA adds an unusual etiology for pancreatitis.All patients with pancreatitis should undergo extensive investigations before being termed 'idiopathic'.Surgical excision of the BGA provides a definitive curative treatment for the adenoma and pancreatitis.
基金Supported by School of Medicine and Pharmacy,Vietnam National University Hanoi,Hanoi,Viet Nam,No.QGSP.2021.06.
文摘BACKGROUND Brunner’s gland hyperplasia(BGH)is a rare benign lesion of the duodenum.Lipomatous pseudohypertrophy(LiPH)of the pancreas is an extremely rare disease.Because each condition is rare,the probability of purely coincidental coexistence of both conditions is extremely low.CASE SUMMARY We report a 26-year-old man presenting to our hospital with symptoms of recurrent upper gastrointestinal bleeding.Upper gastrointestinal endoscopy showed a huge pedunculated polypoid lesion in the duodenum with bleeding at the base of the lesion.Histopathological examination of the duodenal biopsy specimens showed BGH.Besides,abdominal computed tomography and magnetic resonance imaging revealed marked fat replacement over the entire pancreas,confirmed by histopathological evaluation on percutaneous pancreatic biopsies.Based on the radiological and histological findings,LiPH of the pancreas and BGH were diagnosed.The patient refused any surgical intervention.Therefore,he was managed with supportive treatment.The patient’s symptoms improved and there was no further bleeding.CONCLUSION This is the first well-documented case showing the coexistence of LiPH of the pancreas and BGH.
文摘AIM:To present computed tomography(CT) findings of different histological subtypes of parotid gland masses in detail and to establish diagnostic strategy.METHODS:From January 2009 to November 2011,56 patients were collected through the histopathology and Picture Archiving and Communication Systems records,which revealed 5 basal cell adenoma(BCA),16 pleomorphic adenoma(PA),25 Warthin's tumor(War-T),3 Kimura's disease(KD) and 7 parotid carcinoma(PCa) cases.All the CT images were retrospectively analyzed by two radiologists in consensus,based on their description of morphology(location,number,size,margin and fibrous capsule) and enhancement patterns of masses.In addition,the diagnostic efficiency of diagnostic strategy is tested.RESULTS:War-T and BCA patients' mean age was 59.9 ± 12.6 years and 58.4 ± 18.2 years;the significant difference was seen in War-T vs PA and BCA vs PA.About 40% of War-Ts presented with bilateral multifocal lesions,a higher ratio than others.Seventy two percent of War-Ts were limited to the superficial lobe,followed by BCA 60% and PA 40%.Vessel facing sign and enlarged lymph nodes were both frequent in War-T,which respectively accounts for 84% and 76% of cases.Rapid contrast enhancement and decreases were unique for War-T.BCA and PA showed obvious delayed enhancement.The diagnostic strategy of parotid gland tumor had a good diagnostic efficiency,with high accuracy,sensitivity and specificity.CONCLUSION:Determination of the histological subtypes of parotid gland masses might be possible based on CT findings and clinical data.A diagnostic strategy with high diagnostic efficiency was established.
文摘BACKGROUND Duodenal Brunner's gland hyperplasia(BGH)is a therapeutic target when complications such as bleeding or gastrointestinal obstruction occur or when malignancy cannot be ruled out.Herein,we present a case of large BGH treated with endoscopic mucosal resection(EMR).CASE SUMMARY An 83-year-old woman presented at our hospital with dizziness.Blood tests revealed severe anemia,esophagogastroduodenoscopy showed a 6.5 cm lesion protruding from the anterior wall of the duodenal bulb,and biopsy revealed the presence of glandular epithelium.Endoscopic ultrasonography(EUS)demonstr-ated relatively high echogenicity with a cystic component.The muscularis propria was slightly elevated at the base of the lesion.EMR was performed without complications.The formalin-fixed lesion size was 6 cm×3.5 cm×3 cm,showing nodular proliferation of non-dysplastic Brunner's glands compartmentalized by fibrous septa,confirming the diagnosis of BGH.Reports of EMR or hot snare polypectomy are rare for duodenal BGH>6 cm.In this case,the choice of EMR was made by obtaining information on the base of the lesion as well as on the internal characteristics through EUS.CONCLUSION Large duodenal lesions with good endoscopic maneuverability and no evident muscular layer involvement on EUS may be resectable via EMR.
