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Basaloid large cell carcinoma of the lung, is a rare histological variant of lung cancer featuring certain distinctive cytological, tissue architectural, and immunohistochemical characteristics and clinical behavior.

Classification

Lung cancer is a large and exceptionally heterogeneous family of malignancies. Over 50 different histological variants are explicitly recognized within the 2004 revision of the World Health Organization (WHO) typing system ("WHO-2004"), currently the most widely used lung cancer classification scheme.

Many recognized lung cancer variants are rare, recently described and poorly understood. However, since different forms of malignant tumors generally exhibit diverse genetic, biological and clinical properties, including response to treatment, accurate classification of lung cancer cases are critical to ensuring that patients with lung cancer receive optimum management.

Diagnosis

Like other forms of lung cancer, Bas-LCLC is ultimately diagnosed after a pathologist examines a tumor sample containing viable malignant cells and tissue under a light microscope and identifies certain particular characteristics.

Staging

Staging of Bas-LCLC patients is usually performed in an analogous fashion to patients with other non-small cell lung carcinoma.

Treatment

Because of its rarity, there have been no clinical trials conducted on pure Bas-LCLC.

Generally, variants of the 4 major lung cancer subtypes (squamous cell carcinoma, small cell carcinoma, adenocarcinoma, large cell carcinoma) are treated according to protocols designed for the major subtype.

Prognosis

Bas-LCLC are considered to have a particularly poor prognosis, even compared to other forms of lung cancer. However, not all studies have confirmed this.

Epidemiology

Basaloid carcinomas of the lung (like nearly all other recognized subtypes of lung cancer) are highly associated with tobacco smoking. Basaloid architecture in pulmonary carcinomas have been shown to be particularly prevalent in smokers with heavy exposure,

History

Basaloid forms of lung carcinoma were first described in the peer-reviewed medical literature by Dr. Elisabeth Brambilla and her colleagues in 1992. They were first recognized as distinct clinicopathological variants of both squamous cell and large cell lung cancers in 1999, within the third revision of the World Health Organization lung tumor typing and classification scheme.

References

1. ^ Travis, William D; Brambilla, Elisabeth; Muller-Hermelink, H Konrad; Harris, Curtis C, eds. (2004). Pathology and Genetics of Tumours of the Lung, Pleura, Thymus and Heart (PDF). World Health Organization Classification of Tumours. Lyon: IARC Press. ISBN 978-92-832-2418-1. Archived from the original (PDF) on 23 August 2009. Retrieved 27 March 2010.
2. Roggli VL, Vollmer RT, Greenberg SD, McGavran MH, Spjut HJ, Yesner R (June 1985). "Lung cancer heterogeneity: a blinded and randomized study of 100 consecutive cases". Hum. Pathol. 16 (6): 569–79. doi:10.1016/S0046-8177(85)80106-4. PMID 2987102.
3. ^ Brambilla E, Travis WD, Colby TV, Corrin B, Shimosato Y (December 2001). "The new World Health Organization classification of lung tumours". Eur. Respir. J. 18 (6): 1059–68. doi:10.1183/09031936.01.00275301. PMID 11829087.
4. Rossi G, Marchioni A, Sartori G, Longo L, Piccinini S, Cavazza A (2007). "Histotype in non-small cell lung cancer therapy and staging: The emerging role of an old and underrated factor". Curr Respir Med Rev. 3: 69–77. doi:10.2174/157339807779941820.
5. Vincent MD (August 2009). "Optimizing the management of advanced non-small-cell lung cancer: a personal view". Curr Oncol. 16 (4): 9–21. doi:10.3747/co.v16i4.465. PMC 2722061. PMID 19672420.
6. Connolly, James L.; Schnitt, Stuart J.; Wang, Helen H.; Longtine, Janina A.; Dvorak, Ann; Dvorak, Harold F. (2003). "Role of the Surgical Pathologist in the Diagnosis and Management of the Cancer Patient". In Holland, James F.; Frei, Emil; Kufe, Donald W. (eds.). Holland-Frei Cancer Medicine (6 ed.). Hamilton (ON): BC Decker. ISBN 9781550092134.
7. Travis WD (January 2009). "Reporting lung cancer pathology specimens. Impact of the anticipated 7th Edition TNM classification based on recommendations of the IASLC Staging Committee". Histopathology. 54 (1): 3–11. doi:10.1111/j.1365-2559.2008.03179.x. PMID 19187176. S2CID 32434208.
8. ^ "Find NCI-Supported Clinical Trials". 2016-06-23.
9. ^ Moro-Sibilot D, Lantuejoul S, Diab S, et al. (April 2008). "Lung carcinomas with a basaloid pattern: a study of 90 cases focusing on their poor prognosis". Eur. Respir. J. 31 (4): 854–9. doi:10.1183/09031936.00058507. PMID 18094005.
10. Kim DJ, Kim KD, Shin DH, Ro JY, Chung KY (December 2003). "Basaloid carcinoma of the lung: a really dismal histologic variant?". Ann. Thorac. Surg. 76 (6): 1833–7. doi:10.1016/S0003-4975(03)01296-7. PMID 14667594.
11. Brambilla E, Moro D, Veale D, et al. (September 1992). "Basal cell (basaloid) carcinoma of the lung: a new morphologic and phenotypic entity with separate prognostic significance". Hum. Pathol. 23 (9): 993–1003. doi:10.1016/0046-8177(92)90260-A. PMID 1381335.

External links

• "Pathology and Genetics of Tumours of the Lung, Pleura, Thymus and Heart". World Health Organization Classification of Tumours. Archived from the original on 2015-11-15. Retrieved 2011-07-01. (Download Page).
• "Lung cancer page". National Cancer Institute. 1980-01-01.

• Lung cancer