Adnexal Tumor with Rare Differentiation – A Case Report


Authors : Dr. Zaniya P Anitha; Dr. Hema Basappa Bannur

Volume/Issue : Volume 10 - 2025, Issue 3 - March


Google Scholar : https://tinyurl.com/2uapsvuj

Scribd : https://tinyurl.com/39psuwz9

DOI : https://doi.org/10.38124/ijisrt/25mar729

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Abstract : Poromas are benign adnexal tumors that arise from the intraepidermal portion of sweat gland ducts. While most poromas exhibit classic eccrine differentiation, cases with sebaceous differentiation are exceptionally rare. 1, 2 We report a unique case of a poroma with sebaceous differentiation in an elderly-aged patient, highlighting its clinical and histopathological features. This case underscores the importance of recognizing sebaceous differentiation in poromas to avoid misdiagnosis and ensure appropriate management.

Keywords : Poroma, Sebaceous Differentiation, Adnexal Tumor, Eccrine Neoplasm, Sebaceous Neoplasms.

References :

  1. Lee NH, Lee SH, Ahn SK. Apocrine poroma with sebaceous differentiation. Am J Dermatopathol. 2000 Jun;22(3):261-3.
  2. Ito T, Yoshida Y, Furue M, Yamamoto O. Poroma with sebaceous differentiation: dermoscopy for the diagnosis of skin tumor with sebaceous differentiation. Indian J Dermatol. 2015 Jan-Feb;60(1):85-7.
  3. Sawaya JL, Khachemoune A. Poroma: a review of eccrine, apocrine, and malignant forms. Int J Dermatol. 2014 Sep;53(9):1053-61.
  4. Misago N, Mihara I, Ansai S, Narisawa Y. Sebaceoma and related neoplasms with sebaceous differentiation: a clinicopathologic study of 30 cases. Am J Dermatopathol. 2002 Aug;24(4):294-304.
  5. Elder. D E. Lever’s histopathology of the skin.11th ed.Philadelphia:Wolers kluge I;2015

Poromas are benign adnexal tumors that arise from the intraepidermal portion of sweat gland ducts. While most poromas exhibit classic eccrine differentiation, cases with sebaceous differentiation are exceptionally rare. 1, 2 We report a unique case of a poroma with sebaceous differentiation in an elderly-aged patient, highlighting its clinical and histopathological features. This case underscores the importance of recognizing sebaceous differentiation in poromas to avoid misdiagnosis and ensure appropriate management.

Keywords : Poroma, Sebaceous Differentiation, Adnexal Tumor, Eccrine Neoplasm, Sebaceous Neoplasms.

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