Transanal excision of a malignant fibrous histiocytoma of anal canal: A case report and literature review

Table 1 Clinical features of malignant fibrous histiocytoma of anorectum reported in literature

Author (year)	Age/sex	Site	Tumor size (cm)	Primary therapy	Adjuvant therapy	Metastasis/recurrence	Outcome (mo. from first op.)	Remark
Verma (1979)[3]	38/M	Rectum	12	APR	No	NED	Alive (14)	AV 6 cm
Spagnoli (1984)[9]	68/M	Anal cannal	2.0 × 1.6	APR	NA	Lung	Dead (24)	NA
Flood (1989)[12]	41/M	Anal cannal	6	APR	Radiation	NED	Alive (16)	Anal sphincter1
Singh (1999)[21]	55/M	Rectum	4 × 2.5	APR	Chemorad	NED	Alive (46)	AV 4 cm
Present case (2007)	63/F	Anal cannal	1.7 × 1.3	TAE	Radiation	NED	Alive (15)	AV 3 cm

NA: No available information; M: Male; F: Female: APR: Abdominoperineal resection; TAE: Transanal local excision; Chemorad: Adjuvant chemo-radiation therapy; NED: No evidence of disease relapse; AV: Anal verge.

¹Tumor located in the deeper part of anal sphincter (left ischiorectal fossa).