alexa Primary Mucinous (So-called Colloid) Carcinomas of the Lung: A Clinicopathologic and Immunohistochemical Study With Special Reference to CDX-2 Homeobox Gene and MUC2 Expression
Oncology

Oncology

Chemotherapy: Open Access

Author(s): Giulio Rossi, Bruno Murer, Alberto Cavazza, Elisabeth Brambilla

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Herein we describe the clinicopathologic and immunohistochemical features of 13 primary mucinous (colloid) carcinomas (MCs) of the lung, an uncommon and controversial tumor. The patients, 7 males and 6 females, ranged in age from 50 to 79 years (mean, 64.5 years). All the tumors presented as a peripheral solitary nodule with gelatinous cut-surface and well circumscribed but lacking a complete fibrous wall. The size ranged from 1 to 5.5 cm. Microscopically, they consisted of neoplastic elements floating in large mucin pools and focally lining the alveolar spaces. Eleven cases were predominantly composed of tall, columnar goblet cells (goblet cell-type MC), while 2 consisted of signet-ring tumor cells (signet-ring cell-type MC). Five tumors were incidentally discovered by chest radiographs, while the others were symptomatic. All patients underwent complete surgical resection (six lobectomies and seven wedge resections). Postoperative chemotherapy was performed in 3 cases. Overall, the median follow-up was 26 months (mean 33 months; range 9-95 months). All patients with goblet cell-type MC were alive and well, while the 2 patients with signet-ring cell-type MC died of disease.

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This article was published in  American Journal of Surgical Pathology and referenced in Chemotherapy: Open Access

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