Indian Journal of Radiology Indian Journal of Radiology  

   Login   | Users online: 178

Home Bookmark this page Print this page Email this page Small font sizeDefault font size Increase font size     

 

ABDOMINAL IMAGING Table of Contents   
Year : 2005  |  Volume : 15  |  Issue : 2  |  Page : 193-194
Radiological case report : Solid and papillary epithelial neoplasm, a case report


Department of Radio-diagnosis, Gujarat Cancer and Research Institute, Asarwa, Ahmedabad-3800016, India

Click here for correspondence address and email
 

Keywords: Pancreatic neoplasm, Solid and papillary epithelial neoplasm, CT

How to cite this article:
Shah S R, Shah D M, Patel S B, Goswami K G. Radiological case report : Solid and papillary epithelial neoplasm, a case report. Indian J Radiol Imaging 2005;15:193-4

How to cite this URL:
Shah S R, Shah D M, Patel S B, Goswami K G. Radiological case report : Solid and papillary epithelial neoplasm, a case report. Indian J Radiol Imaging [serial online] 2005 [cited 2019 Sep 21];15:193-4. Available from: http://www.ijri.org/text.asp?2005/15/2/193/28799

   Introduction Top


Solid and papillary epithelial neoplasm (SPEN) of the pancreas is an uncommon low-grade malignant tumor. It is usually found in young women. We present a case of this rare pancreatic tumor diagnosed on CT scan examination.


   Case report Top


A 15 years female presented with complains of progressive abdominal discomfort and lump in abdomen since 6 months. There was no history of vomiting, severe abdominal pain or jaundice. We performed CT scan of abdomen on Hitachi CTW 2000 scanner after giving oral, per rectal and intravenous contrast. CT scan showed presence of a large well-defined well-encapsulated solid hypodense mass in body and tail of pancreas [Figure - 1][Figure - 2]. There was clear preservation of fat plane between the mass and surrounding structures. Head of pancreas appeared normal [Figure - 3]. No evidence of lymphadenopathy or liver metastasis noted. We kept the diagnosis of Solid and papillary epithelial neoplasm. Subsequently biopsy from the mass was performed, biopsy report was solid and papillary epithelial neoplasm. The patient was operated and the diagnosis was confirmed on histopathology examination.


   Discussion Top


Solid and papillary neoplasm ( SPEN, papillary carcinoma, papillary-cystic carcinoma) is an uncommon pancreatic tumor found chiefly in young females with a black racial predilection. The mean age is 24 years (range 10 to 50 years) and one third occur in adolescents. Presenting symptoms and signs are progressive abdominal discomfort, enlarging abdominal mass, frequently in left upper quadrant, early satiety, nausea and vomiting. Patient may also present with polyarthralgia or eosinophilia or both due to intravascular release of lipase [1]. It is important to recognize SPEN since it is a low-grade malignancy that is apparently curable with surgical resection in most cases.

Grossly SPEN is a large (mean diameter 10 cm), well-encapsulated mass that usually demonstrates variable degrees of internal haemorrhage and cystic degeneration. These changes are secondary to the delicate, easily disrupted vascular network that traverses this tumor. Areas of hemorrhagic degeneration vary from solid friable areas to frankly cystic cavities. Microscopically, there is limited, if any, evidence of aggressive behavior consisting of capsular invasion, extension into adjacent parenchyma or vascular invasion. The neoplastic cells are small to medium in size, polygonal to somewhat elongated and slightly eosinophilic with small to medium sized ovoid nuclei. Mitotic figures are rare. Stains for mucin is negative.

Calcification is uncommon on plain films and CT but is peripheral when present [2]. On ultrasonography, there is a well-demarcated echogenic mass with hypoechoic to anechoic areas of varying number and size depending on the degree of hemorrhage and necrosis. Through transmission is a constant feature in all cases in which internal cystic areas present. Many times septations are seen in tumor. Pathologically, there is no true 'septum' in this tumor. The sonographic features of septations in the cystic portion are possibly due to prominent papillae projecting into the space of cystic degeneration [3]. CT shows a well-demarcated large pancreatic masses that are frequently in tail. The architecture of the mass varies from solid, homogenous muscle density, through mixed solid and cystic, to thick walled cyst, depending on the degree of hemorrhage and/or necrosis [4]. In extreme instances of hemorrhage, both modalities well depict a thick-walled 'cyst' with a ragged inner margin. The CT numbers in the 'cysts' may be higher than water, correctly suggesting old blood and necrotic debris. The soft tissue attenuating portions of tumor demonstrate enhancement after administration of intravenous contrast. The lesion usually does not infiltrate into surrounding fat or organs and lymphadenopathy or liver metastasis is usually not seen, however, liver metastasis and invasion into adjacent organs have been reported previously [5]. Many times fluid-debris levels noted within the tumor that correspond to cystic and hemorrhagic areas. T1 and T2 weighted MR images show presence of heterogenous areas of increased signal intensity. Areas of high signal intensity on T1 weighted images correspond to areas of hemorrhagic debris. High signal intensity areas on T2 weighted images correspond to cystic areas and in hemorrhagic areas. The solid areas of tumor without gross hemorrhage demonstrate high signal intensity on T2 weighted images [2]. Fluid-debris levels are also noted on MR images. Angiography generally shows a mildly vascular mass on celiac injections and a moderately vascular mass on super selective injections.

The differential diagnosis of SPEN includes microcystic adenoma, mucinous cystic neoplasm, nonfunctioning islet cell tumor, pleomorphic carcinoma of the pancreas, calcified hemorrhagic pseudocyst and pancreatoblastoma.

Although the imaging findings of SPEN are not specific, they are highly suggestive in the appropriate clinical setting. A large well-encapsulated mass that demonstrates calcification and regions of hemorrhagic degeneration seen in a young woman is virtually diagnostic.

 
   References Top

1.AC Friedman and PR Edmonds. Rare pancreatic malignancies. Radiol Clin North Am 1989; 27: 177-190.  Back to cited text no. 1    
2.PC Buetow, JL Buck, L Pantongrag-Brown, KG Beck, PR Ros and CF Adair. Solid and papillary epithelial neoplasm of the pancreas: Imaging-pathological correlation in 56 cases. Radiology 1996; 199: 707-711.  Back to cited text no. 2    
3.JT Lin, TH Wang et al: Sonographic features of solid and papillary neoplasm of the pancreas. JCU 1995, 13: 339-342.  Back to cited text no. 3    
4.AC Friedman, JE Lichtenstein et al. Solid and papillary epithelial neoplasm of the pancreas. Radiology 1985, 154: 333-337.  Back to cited text no. 4    
5.LM Sclafani, VE Reuter et al. The malignant nature of papillary and cystic neoplasm of the pancreas. Cancer 1991; 68: 153-158.  Back to cited text no. 5    

Top
Correspondence Address:
D M Shah
Department of Radio-diagnosis, Gujarat Cancer and Research Institute, Asarwa, Ahmedabad 380016
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-3026.28799

Rights and Permissions


    Figures

[Figure - 1], [Figure - 2], [Figure - 3]



 

Top
 
  Search
 
    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
    Email Alert *
    Add to My List *
* Registration required (free)  


    Introduction
    Case report
    Discussion
    References
    Article Figures

 Article Access Statistics
    Viewed4112    
    Printed91    
    Emailed0    
    PDF Downloaded383    
    Comments [Add]    

Recommend this journal