Rectum Flashcards
1
Q
Management of retrorectal tumors
A
-all should be resected due to risk of occult malignancy and/or malignant conversion
2
Q
retrorectal space boundaries
A
- rectum anteriorly
- sacrum and sacral fascia posteriorly
- ureters, internal iliac arteries, and rectal stalks laterally
- peritoneal reflection cranially
3
Q
Congenital presacral masses
A
- Dermoid cyst
- Epidermoid cyst
- Duplication cyst
- Tailgut cyst
- Teratoma
- Teratocarcinoma
- Chordoma
4
Q
Neurogenic presacral masses
A
- meningocele
- schwannoma
- ganglioneuroma
- ganglioneuroblastoma
- neurofibroma
- neuroblastoma
- ependymoma
- malignant peripheral nerve sheath tumor
5
Q
Osseous presacral masses
A
- metastatic carcinoma
- Ewing sarcoma
- myeloma
- osteogenic sarcoma
6
Q
Other presacral masses
A
- sarcomas
- carcinoids
- inflammatory masses
- hematomas
- hemangiopericytoma
