H David Vargas
H David Vargas
H. David vargas, m.d [0.03%]
哈维·戴维·瓦尔加斯医学博士
David E Beck
David E Beck
Stephen Yoo
Stephen Yoo
Hemangiomas and vascular malformations of the gastrointestinal tract, rare clinical entities, present as overt or occult bleeding. They can be distributed throughout the intestinal digestive system, or present as a singular cavernous hemang...
Premalignant lesions of the anal canal and squamous cell carcinoma of the anal canal [0.03%]
肛管癌前病变和肛管鳞状细胞癌
Juan Lucas Poggio
Juan Lucas Poggio
Squamous cell carcinoma of the anus (SCCA) is a rare tumor. However, its incidence has been increasing in men and women over the past 25 years worldwide. Risk factors associated with this cancer are those behaviors that predispose individua...
Anorectal melanoma [0.03%]
肛门直肠黑色素瘤
Amalia Stefanou,Surya P M Nalamati
Amalia Stefanou
Anorectal melanoma is a disease that can be difficult to diagnose because of its unclear presentation. After diagnosis, the main treatment available is surgical resection. Sentinel lymph node mapping has an unclear role in its management. A...
Dimitra G Theodoropoulos
Dimitra G Theodoropoulos
Gastrointestinal stromal tumors (GISTs) of the colon and rectum are the most common mesenchymal tumors of the gastrointestinal tract. GISTs of the colon and rectum constitute ~5% of all cases. Although colorectal GISTs can be small and foun...
Retrorectal tumors [0.03%]
骶前肿瘤
Jeffrey A Neale
Jeffrey A Neale
Tumors that arise in the retrorectal (presacral) space are uncommon lesions that present with nonspecific signs and symptoms, which lead to difficult diagnoses. For complete evaluation of the lesion, cross-sectional imaging is required to d...
Shawn P Webb,Chong S Lee
Shawn P Webb
Anal canal cancer is a rare cancer with incidence that continues to rise. This has been in large part due to increased prevalence of immunosuppressed conditions such as organ transplantation and human immunodeficiency virus along with trans...
Colorectal lymphoma [0.03%]
结直肠淋巴瘤
Melissa Times
Melissa Times
Extranodal lymphomas account for a third of all cases of non-Hodgkin lymphoma with the gastrointestinal tract being the most common extranodal site. The most common location is the stomach followed by the small intestine, colon and rectum. ...
John Carl Eggenberger
John Carl Eggenberger
Neuroendocrine tumors (NETs) are found throughout the intestinal tract and arise from the Kulchitsky cells located in the crypts of Lieberkühn. They are classified by site of origin and by degree of differentiation, with well-differentiate...