Well-differentiated papillary mesothelioma (WDPM) is a rare mesothelial tumour affecting mostly the peritoneum of women in their reproductive age, but it may occur also at other sites, including the pleura. It is considered a specific pathological entity different from diffuse malignant mesothelioma as it displays a characteristic histological pattern and is associated with a slowly progressive clinical course. We report the case of a 79-year-old man with a history of right pleural WDPM at age 64, which was successfully treated with chemotherapy, radiotherapy and talc pleurodesis. Thirteen years after the first diagnosis, he presented with mediastinal lymph nodes metastasis and with an extremely rare pattern of tracheal and bronchial infiltration that was detected at bronchoscopy. Biopsy samples revealed loss of histological differentiation of the neoplastic cells. This case report highlights that WDPM is a tumour of uncertain malignant potential that may undergo transformation over many years. Finally, the role of immunohistochemistry in the diagnosis of WDPM and the possible mechanisms leading to this unique way of metastatisation are discussed.

Malignant transformation of well-differentiated papillary mesothelioma 13 years after the diagnosis: a case report / L., Costanzo; S., Scarlata; G., Perrone; Rossi, Luigi; Papa, Anselmo; F. M., Di Matteo; G., Tonini; A., Onetti Muda; R., Antonelli Incalzi; Tomao, Silverio. - In: THE CLINICAL RESPIRATORY JOURNAL. - ISSN 1752-6981. - STAMPA. - 8:1(2014), pp. 124-129. [10.1111/crj.12057]

Malignant transformation of well-differentiated papillary mesothelioma 13 years after the diagnosis: a case report

ROSSI, Luigi;PAPA, ANSELMO;TOMAO, SILVERIO
2014

Abstract

Well-differentiated papillary mesothelioma (WDPM) is a rare mesothelial tumour affecting mostly the peritoneum of women in their reproductive age, but it may occur also at other sites, including the pleura. It is considered a specific pathological entity different from diffuse malignant mesothelioma as it displays a characteristic histological pattern and is associated with a slowly progressive clinical course. We report the case of a 79-year-old man with a history of right pleural WDPM at age 64, which was successfully treated with chemotherapy, radiotherapy and talc pleurodesis. Thirteen years after the first diagnosis, he presented with mediastinal lymph nodes metastasis and with an extremely rare pattern of tracheal and bronchial infiltration that was detected at bronchoscopy. Biopsy samples revealed loss of histological differentiation of the neoplastic cells. This case report highlights that WDPM is a tumour of uncertain malignant potential that may undergo transformation over many years. Finally, the role of immunohistochemistry in the diagnosis of WDPM and the possible mechanisms leading to this unique way of metastatisation are discussed.
pleurodesis; metastasis; mesothelioma; bronchoscopy; well differentiated papillary; well-differentiated papillary mesothelioma
01 Pubblicazione su rivista::01a Articolo in rivista
Malignant transformation of well-differentiated papillary mesothelioma 13 years after the diagnosis: a case report / L., Costanzo; S., Scarlata; G., Perrone; Rossi, Luigi; Papa, Anselmo; F. M., Di Matteo; G., Tonini; A., Onetti Muda; R., Antonelli Incalzi; Tomao, Silverio. - In: THE CLINICAL RESPIRATORY JOURNAL. - ISSN 1752-6981. - STAMPA. - 8:1(2014), pp. 124-129. [10.1111/crj.12057]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/688253
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