Adenomatoid Tumor, Pleural

Definition

Adenomatoid tumor is a benign tumor of mesothelial derivation and is considered a benign form of mesothelioma. This tumor is exceptionally rare in the pleural cavity and presents as an incidental nodule. Adenomatoid tumor most commonly occurs in the genital tract.

Clinical Features

• Incidence

  Few cases of adenomatoid tumor have been reported in the pleural cavity. However, nearly 1% of hysterectomy specimens harbor this tumor.

• Age

  Adenomatoid tumor of the pleura has been reported in patients between the fourth and seventh decades.

• Sex

  Among the few cases of pleural adenomatoid tumor reported, 75% occurred in females and 25% in males.

• Site

  Adenomatoid tumor of the pleura can occur in the visceral or parietal pleura and can involve the upper or lower lung lobes.

• Treatment

  Excision is curative but unnecessary for this benign condition.

• Outcome

  Adenomatoid tumor of the pleura, similar to other locations, is uniformly benign with no malignant transformation reported.

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