Related Experiment Videos
Amelanotic malignant melanoma of the rectum: report of a case
Surgery Today
|June 29, 2001
Abstract:
We describe herein a case of amelanotic melanoma of the rectum. Macroscopically, the tumor was lacking in pigmentation and microscopically, it was found to be deficient in melanin. Moreover, the tumor cells showed positive staining for HMB-45, the antimelanoma antibody, which led to a diagnosis of amelanotic melanoma. The patient died of metastatic tumors in the liver and bone 17 months after undergoing abdominoperineal resection of the rectum and dissection of the bilateral inguinal lymph nodes.
Related Concept Videos
01:25Assessment of the Rectum and Anus
Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
01:30Skin Cancer
Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...