Despite the knowledge of etiological association with high-risk human papilloma viruses
and high-risk patient cohorts, the incidence of anal squamous cell carcinoma has continued …

Anal carcinoma is a relatively rare tumor that accounts for approximately 2% of
gastrointestinal malignancies and less than 7% of anorectal cancers. Most anal tumors …

Aim The aim of our study was to scrutinize diagnostic and treatment factors that may
contribute to the low survival rate from anorectal melanoma while adding 17 more cases to …

Background: Anorectal melanoma (AM) is a rare subtype of melanoma. Aim: To study the
clinic–pathologic features and outcomes in patients with AM. Materials & methods: Clinical …

Anorectal melanoma (ARM) is an uncommon aggressive malignancy that comprises 0.5% to
1.6% of all melanoma manifestations. Dedifferentiated melanoma is very rare with loss of all …

Background It is sometimes challenging to differentiate between gastrointestinal (GI)
mucosal melanoma and gastrointestinal stromal tumors (GISTs) because they share some …

Objective: Primary anorectal melanomas (AMs) are uncommon neoplasms with aggressive
behavior. Molecular profile and clinicopathologic features of AMs are still not well …

Primary anorectal malignant melanoma (ARMM) is a rare, aggressive tumour that accounts
for approximately 1.2% of all melanomas. This rare entity represents less than 5% of …

The non-specific clinical symptoms of anorectal brownish-black mass do not help to
differentiate colorectal cancer, hemorrhoids, rectal ulcers which result in a delayed …

Anal carcinoma is a relatively rare tumor that accounts for approximately 2% of
gastrointestinal malignancies and less than 7% of anorectal cancers. Most anal tumors …