Clinical analysis of anorectal malignant melanoma.
- Author:
Sen ZHANG
1
;
Feng GAO
;
Li-sheng CHEN
;
Zong-jiang TANG
;
Jun-lin LIANG
;
Qian WU
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Aged, 80 and over; Anus Neoplasms; diagnosis; pathology; surgery; Female; Humans; Male; Melanoma; diagnosis; pathology; surgery; Middle Aged; Rectal Neoplasms; diagnosis; pathology; surgery; Retrospective Studies
- From: Chinese Journal of Gastrointestinal Surgery 2005;8(4):309-311
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo summarize the clinicopathological characteristics of primary anorectal malignant melanoma (AMM).
METHODSClinical data of nine patients with AMM were reviewed retrospectively from January 1999 to March 2005.
RESULTSAnorectal malignant melanoma had a female predominance. The average age was 56 years old and average course of disease was 5.8 months. The onset of symptom was hematochezia, then anus prolapses. 94.7% of patients had AMM within 5 cm from anus margin; the average tumor size was (3.3+/- 2.1) cm. The polyp and ulcer were most common types. More than a half (54.5%) of the tumor was movable, 19.1% smooth surfaced, 6.6% soft textured. Synchronous metastasis was found in 14.0% of the patients, the first common metastasis was found in liver, the secondary was superficial inguinal lymph node metastasis. Half of the patients were misdiagnosed,and over 50% of patients were misdiagnosed as benign disease. Mile's operation was performed in most of patients (63%), while anal resection was performed in 30% of the patients.
CONCLUSIONSAnorectal malignant melanoma is often misdiagnosed,surgical procedure is the first choice for patients with AMM.
