Peritoneum
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The peritoneum is a much neglected area, with relatively little pathology. It includes the omentum which is dealt with in the omentum article.
Benign
Peritoneal inclusion cyst
- AKA benign multicystic mesothelioma.[1]
- Should not be confused with malignant mesothelioma.
- AKA inflammatory cyst of the peritoneum.
- AKA mesothelial inclusion cyst. (???)
General
- Usu. conservative management.
- Serum CA-125 usu. low.
- May occur in men.[2]
Microscopic
- Thin-walled, irregular-shaped, cysts - unicystic or multicystic.
- Mesothelial lining.
- Eosinophilic fluid.
Image:
Malignant
Primary peritoneal serous carcinoma
General
- Very rare.
- Reported in men.[4]
Microscopic
Features:
- Like serous carcinoma elsewhere - see ovarian serous carcinoma.
- To exclude ovarian serous carcinoma all of the following criteria must be met:[5]
- Histology of the tumour = serous carcinoma.
- Bulk of the tumour involves the peritoneum.
- Ovarian substance tumour extent less than 5 x 5 mm in plane of section.
- Previous ovarian serous carcinoma is excluded.
- Old oopherectomies reviewed if possible.
DDx:
- Ovarian serous carcinoma.
- Other serous carcinomas - see serous carcinoma.
- Malignant mesothelioma.
IHC
- Like serous carcinoma elsewhere - see ovarian serous carcinoma.
See also
References
- ↑ 1.0 1.1 Vallerie, AM.; Lerner, JP.; Wright, JD.; Baxi, LV. (May 2009). "Peritoneal inclusion cysts: a review.". Obstet Gynecol Surv 64 (5): 321-34. doi:10.1097/OGX.0b013e31819f93d4. PMID 19386139.
- ↑ Cavallaro, A.; Murazio, M.; Modugno, P.; Vona, A.; Revelli, L.; Potenza, AE.; Colli, R.. "Benign multicystic mesothelioma of the peritoneum: a case report.". Chir Ital 54 (4): 569-72. PMID 12239771.
- ↑ Levy, AD.; Arnáiz, J.; Shaw, JC.; Sobin, LH.. "From the archives of the AFIP: primary peritoneal tumors: imaging features with pathologic correlation.". Radiographics 28 (2): 583-607; quiz 621-2. doi:10.1148/rg.282075175. PMID 18349460.
- ↑ Shmueli, E.; Leider-Trejo, L.; Schwartz, I.; Aderka, D.; Inbar, M. (Apr 2001). "Primary papillary serous carcinoma of the peritoneum in a man.". Ann Oncol 12 (4): 563-7. PMID 11398893.
- ↑ Roh, SY.; Hong, SH.; Ko, YH.; Kim, TH.; Lee, MA.; Shim, BY.; Byun, JH.; Woo, IS. et al. (Jun 2007). "Clinical characteristics of primary peritoneal carcinoma.". Cancer Res Treat 39 (2): 65-8. doi:10.4143/crt.2007.39.2.65. PMC 273931. PMID 19746214. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC273931/.