Question:

Which of the following are correct regarding differential diagnoses of presacral mass?
1. Abscess
2. Anterior meningocoele
3. Aneurysmal bone cysts in children and adolescents
4. Giant cell tumor
5. Chordoma in adults





Answer:

The correct answers for the question "Which of the following are correct regarding differential diagnoses of presacral mass?" are:

1. Abscess

2. Anterior meningocoele

3. Aneurysmal bone cysts in children and adolescents

4. Giant cell tumor

5. Chordoma in adults



Explanation

a. Abscess. (will appear predominantly cystic and ill-defined due to extensive surrounding inflammation)

b. Anterior meningocoele.

c. Aneurysmal bone cysts in children and adolescents. (Expansile lytic lesion of the bone with less soft tissue component).

d. Giant cell tumour (arises within the bone and shows more bone destruction)

e. Chordoma in adults (Giant sacral schwannoma may be easily mistaken for one of these conditions, whereas GPSS appears well defined with only minor bone involvement. Chordomas are midline lesions with significant bone destruction)



From the manuscript:
A case report of a giant presacral cystic schwannoma with sigmoid megacolon
Radiology Case. 2009 Dec; 3(12):31-37


This article belongs to the Neuro section.




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From the manuscript

A case report of a giant presacral cystic schwannoma with sigmoid megacolon

Free full text article: A case report of a giant presacral cystic schwannoma with sigmoid megacolon

Abstract
Schwannomas are peripheral nerve sheath tumours with a slow growth rate. Giant sacral schwannoma with anterior cortex erosion and associated intrapelvic extension are uncommon. Though they tend to be large when initially found, most Giant schwannomas are clinically asymptomatic. The tumour appears heterogenous due to long standing degeneration. Herein, we present a case of a large purely cystic presacral schwannoma in a patient with poliomyelitis, which has displaced adjacent organs including urinary bladder and sigmoid colon, with an initial presentation of constipation. The tumour was partially excised and diagnosis was confirmed by histo-pathology and immunohistochemistry.






References



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