Difference between revisions of "Brenner tumour"

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*Thought to arise from [[Walthard cell rest]].
*Thought to arise from [[Walthard cell rest]].
*Frequently an incidental finding, i.e. oophorectomy was done for another reason.
*Frequently an incidental finding, i.e. oophorectomy was done for another reason.
*May be malignant - rarely (<1%).<ref>{{Cite journal  | last1 = Gezginç | first1 = K. | last2 = Karatayli | first2 = R. | last3 = Yazici | first3 = F. | last4 = Acar | first4 = A. | last5 = Çelik | first5 = Ç. | last6 = Çapar | first6 = M. | last7 = Tavli | first7 = L. | title = Malignant Brenner tumor of the ovary: analysis of 13 cases. | journal = Int J Clin Oncol | volume = 17 | issue = 4 | pages = 324-9 | month = Aug | year = 2012 | doi = 10.1007/s10147-011-0290-7 | PMID = 21796330 }}</ref>
*May be malignant - rarely (~1% of Brenner tumour).<ref>{{Cite journal  | last1 = Gezginç | first1 = K. | last2 = Karatayli | first2 = R. | last3 = Yazici | first3 = F. | last4 = Acar | first4 = A. | last5 = Çelik | first5 = Ç. | last6 = Çapar | first6 = M. | last7 = Tavli | first7 = L. | title = Malignant Brenner tumor of the ovary: analysis of 13 cases. | journal = Int J Clin Oncol | volume = 17 | issue = 4 | pages = 324-9 | month = Aug | year = 2012 | doi = 10.1007/s10147-011-0290-7 | PMID = 21796330 }}</ref>


==Gross==
==Gross==

Revision as of 09:34, 14 February 2014

Brenner tumour
Diagnosis in short

Brenner tumour. H&E stain.

LM nests of transitional epithelium with cells that have a "coffee bean nucleus" (elliptical shape (nucleus), nuclear groove along long axis), distinct nucleoli, moderate-to-abundant gray/pale cytoplasm, dense fibrous stroma around nests
LM DDx granulosa cell tumour, ovarian fibroma, thecoma
IHC AR +ve, calretinin -ve
Site ovary (see ovarian tumours), fallopian tube

Prevalence uncommon
Prognosis usu. good, may be poor

The Brenner tumour, abbreviated BT, is an ovarian tumour in the epithelial group of ovarian tumours.

General

Epidemiology

  • Mostly benign clinical course.
  • Thought to arise from Walthard cell rest.
  • Frequently an incidental finding, i.e. oophorectomy was done for another reason.
  • May be malignant - rarely (~1% of Brenner tumour).[4]

Gross

Features:[5]

  • Classically solid, well-circumscribed, light yellow.
  • May be cystic.

Note:

  • Borderline tumours classically solid and cystic with papillary projections into the cystic component.[5]

Microscopic

Features:

  • Nests of transitional epithelium with cells that have:[6]
    • A "coffee bean nucleus".
      • Elliptical shape (nucleus).
      • Nuclear grooves.
      • Distinct nucleoli.
    • Moderate-to-abundant gray/pale cytoplasm.
  • Dense fibrous stroma around nests.

Notes:

DDx:

Images

IHC

Features:[7]

  • AR +ve.
  • Calretinin -ve.
    • Surrounding stroma +ve.

See also

References

  1. Bilici, A.; Inanc, M.; Ulas, A.; Akman, T.; Seker, M.; Babacan, NA.; Inal, A.; Bal, O. et al. (2013). "Clinical and pathologic features of patients with rare ovarian tumors: multi-center review of 167 patients by the anatolian society of medical oncology.". Asian Pac J Cancer Prev 14 (11): 6493-9. PMID 24377556.
  2. Ali, RH.; Seidman, JD.; Luk, M.; Kalloger, S.; Gilks, CB. (Nov 2012). "Transitional cell carcinoma of the ovary is related to high-grade serous carcinoma and is distinct from malignant brenner tumor.". Int J Gynecol Pathol 31 (6): 499-506. doi:10.1097/PGP.0b013e31824d7445. PMID 23018212.
  3. Kuhn, E.; Ayhan, A.; Shih, IeM.; Seidman, JD.; Kurman, RJ. (Dec 2013). "Ovarian Brenner tumour: a morphologic and immunohistochemical analysis suggesting an origin from fallopian tube epithelium.". Eur J Cancer 49 (18): 3839-49. doi:10.1016/j.ejca.2013.08.011. PMID 24012099.
  4. Gezginç, K.; Karatayli, R.; Yazici, F.; Acar, A.; Çelik, Ç.; Çapar, M.; Tavli, L. (Aug 2012). "Malignant Brenner tumor of the ovary: analysis of 13 cases.". Int J Clin Oncol 17 (4): 324-9. doi:10.1007/s10147-011-0290-7. PMID 21796330.
  5. 5.0 5.1 Borah, T.; Mahanta, RK.; Bora, BD.; Saikia, S. (Jan 2011). "Brenner tumor of ovary: An incidental finding.". J Midlife Health 2 (1): 40-1. doi:10.4103/0976-7800.83273. PMC 3156501. PMID 21897739. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3156501/.
  6. Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease (7th ed.). St. Louis, Mo: Elsevier Saunders. pp. 1098. ISBN 0-7216-0187-1.
  7. Kuhn, E.; Ayhan, A.; Shih, IeM.; Seidman, JD.; Kurman, RJ. (Dec 2013). "Ovarian Brenner tumour: a morphologic and immunohistochemical analysis suggesting an origin from fallopian tube epithelium.". Eur J Cancer 49 (18): 3839-49. doi:10.1016/j.ejca.2013.08.011. PMID 24012099.