C. Tang, C. Toker, A. Nedwich, and A. Zaman, Unusual cutaneous carcinoma with features of small cell (oat cell-like) and squamous cell carcinomas, The American Journal of Dermatopathology, vol.4, issue.6, pp.537-585, 1982.
DOI : 10.1097/00000372-198212000-00011

S. Miller, M. Alam, J. Andersen, D. Berg, C. Bichakjian et al., Merkel Cell Carcinoma, Journal of the National Comprehensive Cancer Network, vol.7, issue.3, pp.704-716, 2006.
DOI : 10.6004/jnccn.2009.0024

M. Heath, N. Jaimes, B. Lemos, A. Mostaghimi, L. Wang et al., Clinical characteristics of Merkel cell carcinoma at diagnosis in 195 patients: the AEIOU features, Journal of the American Academy of Dermatology, vol.58, issue.3, pp.375-81, 2008.
DOI : 10.1016/j.jaad.2007.11.020

R. Miller and C. Rabkin, Merkel cell carcinoma and melanoma: etiological similarities and differences. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, pp.153-161, 1999.

A. Dancey, S. Rayatt, C. Soon, A. Ilchshyn, I. Brown et al., Merkel cell carcinoma: a report of 34 cases and literature review Journal of plastic, reconstructive & aesthetic surgery Merkel cell carcinoma of the vulva, JPRAS. Obstetrics and gynecology, vol.5963, issue.123, pp.61-66, 1984.

M. Agelli, L. Clegg, J. Becker, and D. Rollison, The etiology and epidemiology of merkel cell carcinoma. Current problems in cancer, pp.14-37, 2010.

F. Eftekhari, S. Wallace, E. Silva, and R. Lenzi, Merkel cell carcinoma of the skin: imaging and clinical features in 93 cases. The British journal of radiology, pp.226-259, 1996.

P. Allen, W. Bowne, D. Jaques, M. Brennan, K. Busam et al., Merkel Cell Carcinoma: Prognosis and Treatment of Patients From a Single Institution, Journal of Clinical Oncology, vol.23, issue.10, pp.2300-2309, 2005.
DOI : 10.1200/JCO.2005.02.329

S. Akhtar, K. Oza, and J. Wright, Merkel cell carcinoma: Report of 10 cases and review of the literature, Journal of the American Academy of Dermatology, vol.43, issue.5, pp.755-67, 2000.
DOI : 10.1067/mjd.2000.106505

. Neuroendocrine, Merkel cell) carcinoma of the skin. Its natural history, diagnosis, and treatment, Annals of surgery, vol.207, issue.2, pp.201-208, 1988.

E. Engels, M. Frisch, J. Goedert, R. Biggar, and R. Miller, Merkel cell carcinoma and HIV infection, The Lancet, vol.359, issue.9305, pp.497-505, 2002.
DOI : 10.1016/S0140-6736(02)07668-7

K. An, D. Ratner, V. De-giorgi, S. Benemei, M. Grazzini et al., Merkel cell carcinoma in the setting of HIV infection Rapid growth of Merkel cell carcinoma during etanercept treatment of psoriatic arthritis: cause or coincidence? Clonal integration of a polyomavirus in human Merkel cell carcinoma, Journal of the American Academy of Dermatology. Acta dermato-venereologica. Science, vol.4591319, issue.175866, pp.309-12354, 2001.

V. Foulongne, N. Kluger, O. Dereure, N. Brieu, B. Guillot et al., Merkel cell polyomavirus and Merkel cell carcinoma, France. Emerging infectious diseases, pp.1491-1494, 2008.

H. Sihto, H. Kukko, V. Koljonen, R. Sankila, T. Bohling et al., Clinical Factors Associated With Merkel Cell Polyomavirus Infection in Merkel Cell Carcinoma, JNCI: Journal of the National Cancer Institute, vol.105, issue.42, pp.938-983, 2009.
DOI : 10.1073/pnas.0806526105

W. Mcafee, C. Morris, C. Mendenhall, J. Werning, N. Mendenhall et al., Merkel cell carcinoma, Cancer, vol.18, issue.8, pp.1761-1765, 2005.
DOI : 10.1016/0360-3016(92)90975-N

V. Boghossian, I. Owen, B. Nuli, and P. Xiao, Neuroendocrine (Merkel cell) carcinoma of the retroperitoneum with no identifiable primary site, World Journal of Surgical Oncology, vol.5, issue.1, pp.117-139, 2007.
DOI : 10.1186/1477-7819-5-117

J. Deneve, J. Messina, S. Marzban, R. Gonzalez, B. Walls et al., Merkel Cell Carcinoma of Unknown Primary Origin, Annals of Surgical Oncology, vol.254, issue.7, pp.2360-2366, 2012.
DOI : 10.1016/j.jaad.2011.09.009

T. Jaeger, J. Ring, C. Andres, and J. Patterson, Histological, immunohistological, and clinical features of merkel cell carcinoma in correlation to merkel cell polyomavirus status Merkel cell carcinoma (neuroendocrine carcinoma of the skin) American journal of clinical pathology, Journal of skin cancer, vol.2012115, pp.68-78, 2001.

I. Erovic, D. Sarma, D. Heagley, J. Chalupa, M. Cox et al., Merkel Cell Carcinoma: The Past, the Present, and the Future An unusual clinical presentation of merkel cell carcinoma: a case report Case reports in medicine Merkel cell carcinoma arising from the subcutaneous fat of the arm with intact skin Dermatologic surgery : official publication for American Society for Dermatologic Surgery, J Skin Cancer, vol.201331, issue.276, pp.6-26905414717, 2005.

P. Peloschek, C. Novotny, C. Mueller-mang, M. Weber, J. Sailer et al., Diagnostic imaging in Merkel cell carcinoma: lessons to learn from 16 cases with correlation of sonography, CT, MRI and PET Imaging of Merkel cell carcinoma, European journal of radiology. Radiographics : a review Inc, vol.7322, issue.292, pp.317-23367, 2002.

P. Dunlop, H. Sapp, P. Logan, and N. Walsh, Merkel cell carcinoma of the abdominal wall, Skeletal Radiology, vol.27, issue.7, pp.396-405, 1998.
DOI : 10.1007/s002560050406

S. Anderson, K. Beer, A. Banic, L. Steinbach, M. Martin et al., MRI of Merkel Cell Carcinoma: Histologic Correlation and Review of the Literature, American Journal of Roentgenology, vol.185, issue.6, pp.1441-1449, 2005.
DOI : 10.2214/AJR.04.0796

L. Azizi, K. Marsot-dupuch, P. Bigel, S. Mzali, B. Meyer et al., Merkel cell carcinoma: a rare cause of hypervascular nasal tumor, AJNR American journal of neuroradiology, vol.22, issue.7, pp.1389-93, 2001.

S. Tirumani, A. Shinagare, C. Sakellis, S. Saboo, J. Jagannathan et al., Merkel Cell Carcinoma: A Primer for the Radiologist, American Journal of Roentgenology, vol.200, issue.6, pp.1186-96, 2013.
DOI : 10.2214/AJR.12.9884

M. Vesely, D. Murray, P. Neligan, C. Novak, P. Gullane et al., Archives of surgery388-92; discussion 92-3. 36 Complete spontaneous regression in Merkel cell carcinoma, Multimodality management of Merkel cell carcinoma, pp.165-71, 1999.

E. Hawryluk, O. Regan, K. Sheehy, N. Guo, Y. Dorosario et al., Positron emission tomography/computed tomography imaging in Merkel cell carcinoma: A study of 270 scans in 97 patients at the Dana-Farber/Brigham and Women's Cancer Center Merkel cell carcinoma 2013. National Comprehensive Cancer Network Web-site]. 39 Merkel cell carcinoma. Prognosis and management Merkel cell carcinoma: identification of prognostic factors unique to tumors located in the head and neck based on analysis of SEER data. The Laryngoscope, Journal of the American Academy of Dermatology. Archives of surgery, vol.38126122, issue.406, pp.1514-91283, 1991.

O. Lin, A. Thomas, A. Singh, and B. Greenspan, Complementary role of positron emission tomography in merkel cell carcinoma. Southern medical journal, pp.1110-1112, 2004.

M. Yao, R. Smith, H. Hoffman, G. Funk, M. Graham et al., Merkel Cell Carcinoma, American Journal of Clinical Oncology, vol.28, issue.2, pp.205-215, 1996.
DOI : 10.1097/01.coc.0000144850.68142.68

N. Wasserberg, M. Feinmesser, J. Schachter, E. Fenig, H. Gutman et al., Sentinel-node guided lymph-node dissection for merkel cell carcinoma European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology Sentinel lymph node biopsy for evaluation and treatment of patients with Merkel cell carcinoma: The Dana-Farber experience and meta-analysis of the literature, Archives of dermatology, vol.25142, issue.466, pp.444-6685, 1999.

K. Mehrany, C. Otley, R. Weenig, P. Phillips, R. Roenigk et al., A metaanalysis of the prognostic significance of sentinel lymph node status in Merkel cell carcinoma Dermatologic surgery : official publication for American Society for Dermatologic Surgery, pp.113-120, 2002.

A. Blom, F. Kolb, J. Lumbroso, P. Duvillard, G. Mamelle et al., Significance of sentinel lymph node biopsy in Merkel cell carcinoma Analysis of 11 cases], Annales de dermatologie et de venereologie, vol.130, issue.4, pp.417-439, 2003.

A. Willis and J. Ridge, Discordant lymphatic drainage patterns revealed by serial lymphoscintigraphy in cutaneous head and neck malignancies, Head & Neck, vol.6, issue.11, pp.979-85, 2007.
DOI : 10.1001/archotol.126.3.433

S. Leong, Selective sentinel lymphadenectomy for malignant melanoma, Merkel cell carcinoma, and squamous cell carcinoma. Cancer treatment and research, pp.39-76, 2005.

Y. Ito, Y. Kai, M. Goto, Y. Hatano, F. Shimizu et al., Inability to detect sentinel lymph node metastasis due to an obstruction of the lymphatics by metastatic Merkel cell carcinoma, The Journal of Dermatology, vol.32, issue.8, pp.38805-38812
DOI : 10.1097/01.rlu.0000257178.54240.90

H. Golan, O. Volkov, O. Linchinsky, M. Melloul, A. Quon et al., FDG-PET imaging in Merkel cell carcinoma -value of head-to-toe scan. Nuclear medicine review Central & Eastern Europe Merkel cell carcinoma: Is there a role for 2-deoxy-2-[f-18]fluoro-D-glucose-positron emission tomography/computed tomography? Molecular imaging and biology : MIB : the official publication of the Academy of Molecular Imaging, pp.135-6212, 2005.

G. Larcos, M. Veness, D. Kwekkeboom, A. Hoff, S. Lamberts et al., The impact of (18)F-FDG PET-CT scanning for staging and management of Merkel cell carcinoma: results from Westmead Hospital Somatostatin analogue scintigraphy. A simple and sensitive method for the in vivo visualization of Merkel cell tumors and their metastases, The predictive value of imaging studies in evaluating regional lymph node involvement in Merkel cell carcinoma al. Indium-111 octreotide scintigraphy of Merkel cell carcinomas and their metastases. Annals of oncology : official journal of the European Society for Medical Oncology, pp.76-84818, 1992.

B. Durani, A. Klein, M. Henze, U. Haberkorn, and W. Hartschuh, Somatostatin analogue scintigraphy in Merkel cell tumours. The British journal of dermatology, pp.1135-1175, 2003.

T. Belhocine, G. Pierard, J. Fruhling, G. Letesson, S. Bolle et al., Clinical added-value of 18FDG PET in neuroendocrine-merkel cell carcinoma Oncology reports Imaging of advanced neuroendocrine tumors with (18)F-FDOPA PET Journal of nuclear medicine : official publication, Society of Nuclear Medicine Imaging of Merkel cell carcinoma Current problems in cancer, pp.347-521161, 2004.

J. Becker, C. Assaf, D. Vordermark, S. Reske, J. Hense et al., Brief S2k guidelines - Merkel cell carcinoma, JDDG: Journal der Deutschen Dermatologischen Gesellschaft, vol.55, issue.13, pp.29-36, 2013.
DOI : 10.1007/s00105-004-0768-6

J. Shaw, E. Rumball, E. Kokoska, M. Kokoska, B. Collins et al., Merkel cell tumour: clinical behaviour and treatment. The British journal of surgery Early aggressive treatment for Merkel cell carcinoma improves outcome, American journal of surgery, vol.78174, issue.656, pp.138-42688, 1991.
DOI : 10.1002/bjs.1800780205

M. Veness, M. Foote, V. Gebski, M. Poulsen, P. Mojica et al., The role of radiotherapy alone in patients with merkel cell carcinoma: reporting the Australian experience of 43 patients. International journal of radiation oncology, biology, physics Adjuvant radiation therapy is associated with improved survival in Merkel cell carcinoma of the skin, Journal of clinical oncology : official journal of the American Society of Clinical Oncology, vol.7825, issue.679, pp.703-91043, 2007.