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In reference to Natural history and management of fanconi anemia patients with head and neck cancer: A 10‐year follow‐up
Author(s) -
Alter Blanche P.,
Rosenberg Philip S.
Publication year - 2016
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1002/lary.25874
Subject(s) - medicine , biostatistics , cancer genetics , cancer , fanconi anemia , epidemiology , gerontology , natural history , citation , family medicine , library science , genetics , dna repair , gene , biology , computer science
Kutler et al. reviewed surgical outcomes in 35 patients with Fanconi anemia (FA) who developed head and neck cancer (HNSCC). They found that surgery works well up front, but late events are common. In our view, the experiences of these sentinel patients together with the literature shed light on critical research questions. First, it is informative to compare 5and 10-year HNSCC survival in FA patients versus general population patients followed through the Surveillance, Epidemiology, and End Result (SEER)program. The 5-year survival in the general population with HNSCC was 75% for human papilloma virus (HPV)-positive patients and 55% for HPV-negative patients; the latter resembles the 5-year survival of about 50% in the FA patients in the Kutler study. However, SEER data indicate that 10-year survival in the general population is about 50%, compared with about 25% in Kutler et al.’s article. This suggests that surgery is as effective in FA patients as in the general population in the short term, but complications from irradiation, and late effects such as recurrence or new malignancies, are more common in FA patients. Hence, HNSCC in FA patients needs to be detected earlier. Second, the etiology of HNSCC in FA patients remains unclear. Importantly, there is another publication regarding the role of HPV in FA patients in addition to the two cited by Kutler et al. The first study by Kutler et al. found HPV in 15/18 FA HNSCC cases, whereas the second independent study found no HPV in 16 FA HNSCC cases. We also found no HPV in five FA HNSCC cases, as well as no HPV in four HNSCC cases from dyskeratosis congenita patients. Hence, the most recent two studies did not find any HPV. In addition, most HNSCC in FA patients present in the oral cavity, but in general, HPV-positive HNSCC cases are typically found in the oropharynx. Although we all agree that the HPV vaccine should be given to patients with FA, the vaccine will not prevent HNSCC in FA patients if HPV is not the cause. More studies are needed to identify the ways that HNSCC is initiated and promoted in FA patients. Finally, because increasing numbers of persons with FA are expected to live long enough to develop HNSCC, larger cohorts of patients should be assembled to inform individualized risk estimates (i.e., with and without stem cell transplant) as well as surveillance guidelines (i.e., what screening and how often?).