A rare case of primary solid intrarectal dermoid

Area of Science:

• Gastroenterology
• Surgical Pathology
• Oncology

Background:

• Primary rectal teratomas are exceptionally rare neoplasms, with a limited number of documented cases globally.
• These tumors predominantly affect the female population and typically present as cystic masses.
• Solid variants of rectal teratomas are exceedingly uncommon, making their presentation and management noteworthy.

Observation:

• A unique case of a solid, intra-rectal dermoid tumor originating from the postero-lateral wall of the rectum is presented.
• The tumor was surgically excised via a perirectal approach.
• Histopathological examination confirmed the presence of mature teratoma components, including squamous epithelium, adipose tissue, hair follicles, cartilage, and glandular structures.

Findings:

• Histology confirmed a mature teratoma, characterized by diverse germ cell derivatives.
• The solid nature of this intra-rectal dermoid is a rare finding.
• The tumor arose primarily from the rectal wall, distinguishing it from other rectal masses.

Implications:

• Complete surgical resection is crucial for managing rectal teratomas, including solid variants.
• Early diagnosis and intervention are vital due to the potential for malignant transformation.
• This case contributes to the limited literature on solid rectal teratomas, aiding in understanding their pathology and treatment.