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Summary
Spindle cell lipoma, a benign tumor, rarely occurs in the perianal region. This case highlights its appearance within the external anal sphincter, expanding known anatomical sites for this neoplasm.
Area of Science:
- Surgical pathology
- Dermatopathology
- Gastrointestinal pathology
Background:
- Spindle cell lipoma is a benign mesenchymal neoplasm characterized by a distinctive admixture of mature adipocytes and bland spindle-shaped cells.
- While commonly found in the posterior neck and upper back of elderly males, its occurrence in other anatomical locations is infrequently reported.
Observation:
- This report details a rare case of spindle cell lipoma arising in the perianal region.
- The neoplasm involved the external anal sphincter, presenting a unique anatomical challenge.
Findings:
- Histopathological examination confirmed the diagnosis of spindle cell lipoma.
- The perianal location and external anal sphincter involvement represent an unusual presentation for this benign lipoma.
Implications:
- This case expands the known spectrum of anatomical sites for spindle cell lipoma.
- Awareness of this rare presentation is crucial for accurate diagnosis and appropriate management in surgical and pathological practice.