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Difference between revisions of "Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia"
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Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (view source)
Revision as of 07:05, 11 September 2018
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[[Image:Lung carcinoid tumourlet - intermed mag.jpg|thumb|right|A [[carcinoid tumourlet]], as may be seen in the context of DIPNECH. (WC/Nephron)]] | |||
'''Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia''', abbreviated '''DIPNECH''', is an uncommon lung pathology that is considered pre-neoplastic by the WHO.<ref name=pmid26104490>{{Cite journal | last1 = Wirtschafter | first1 = E. | last2 = Walts | first2 = AE. | last3 = Liu | first3 = ST. | last4 = Marchevsky | first4 = AM. | title = Diffuse Idiopathic Pulmonary Neuroendocrine Cell Hyperplasia of the Lung (DIPNECH): Current Best Evidence. | journal = Lung | volume = | issue = | pages = | month = Jun | year = 2015 | doi = 10.1007/s00408-015-9755-1 | PMID = 26104490 }}</ref> | '''Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia''', abbreviated '''DIPNECH''', is an uncommon lung pathology that is considered pre-neoplastic by the WHO.<ref name=pmid26104490>{{Cite journal | last1 = Wirtschafter | first1 = E. | last2 = Walts | first2 = AE. | last3 = Liu | first3 = ST. | last4 = Marchevsky | first4 = AM. | title = Diffuse Idiopathic Pulmonary Neuroendocrine Cell Hyperplasia of the Lung (DIPNECH): Current Best Evidence. | journal = Lung | volume = | issue = | pages = | month = Jun | year = 2015 | doi = 10.1007/s00408-015-9755-1 | PMID = 26104490 }}</ref> | ||
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*Usually women (15 of 19 cases<ref name=pmid17099078>{{Cite journal | last1 = Davies | first1 = SJ. | last2 = Gosney | first2 = JR. | last3 = Hansell | first3 = DM. | last4 = Wells | first4 = AU. | last5 = du Bois | first5 = RM. | last6 = Burke | first6 = MM. | last7 = Sheppard | first7 = MN. | last8 = Nicholson | first8 = AG. | title = Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia: an under-recognised spectrum of disease. | journal = Thorax | volume = 62 | issue = 3 | pages = 248-52 | month = Mar | year = 2007 | doi = 10.1136/thx.2006.063065 | PMID = 17099078 }}</ref>). | *Usually women (15 of 19 cases<ref name=pmid17099078>{{Cite journal | last1 = Davies | first1 = SJ. | last2 = Gosney | first2 = JR. | last3 = Hansell | first3 = DM. | last4 = Wells | first4 = AU. | last5 = du Bois | first5 = RM. | last6 = Burke | first6 = MM. | last7 = Sheppard | first7 = MN. | last8 = Nicholson | first8 = AG. | title = Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia: an under-recognised spectrum of disease. | journal = Thorax | volume = 62 | issue = 3 | pages = 248-52 | month = Mar | year = 2007 | doi = 10.1136/thx.2006.063065 | PMID = 17099078 }}</ref>). | ||
*Typically non-smokers (16 of 19 cases<ref name=pmid17099078/>). | *Typically non-smokers (16 of 19 cases<ref name=pmid17099078/>). | ||
*DIPNECH has been described in the context of [[multiple endocrine neoplasia 1]].<ref name=pmid17099078/> | |||
Clinical:<ref name=pmid26112453>{{Cite journal | last1 = Chauhan | first1 = A. | last2 = Ramirez | first2 = RA. | title = Diffuse Idiopathic Pulmonary Neuroendocrine Cell Hyperplasia (DIPNECH) and the Role of Somatostatin analogs: A Case Series. | journal = Lung | volume = | issue = | pages = | month = Jun | year = 2015 | doi = 10.1007/s00408-015-9754-2 | PMID = 26112453 }}</ref> | Clinical:<ref name=pmid26112453>{{Cite journal | last1 = Chauhan | first1 = A. | last2 = Ramirez | first2 = RA. | title = Diffuse Idiopathic Pulmonary Neuroendocrine Cell Hyperplasia (DIPNECH) and the Role of Somatostatin analogs: A Case Series. | journal = Lung | volume = | issue = | pages = | month = Jun | year = 2015 | doi = 10.1007/s00408-015-9754-2 | PMID = 26112453 }}</ref> | ||
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*Somatostatin analogs<ref name=pmid26112453/> - improves cough. | *Somatostatin analogs<ref name=pmid26112453/> - improves cough. | ||
Criteria | ===Criteria=== | ||
''Marchevsky and Walts'' criteria - both 1 & 2 are required:<ref name=pmid26472691>{{Cite journal | last1 = Marchevsky | first1 = AM. | last2 = Walts | first2 = AE. | title = Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH). | journal = Semin Diagn Pathol | volume = 32 | issue = 6 | pages = 438-44 | month = Nov | year = 2015 | doi = 10.1053/j.semdp.2015.08.002 | PMID = 26472691 }}</ref> | |||
#Three or more separate small airways pulmonary neuroendocrine cell clusters. | |||
#*Each cluster should have five or more pulmonary neuroendocrine cells. | |||
#Three or more carcinoid tumourlets. | |||
Notes: | |||
*The ''Marchevsky and Walts'' definition is not universally accepted. | |||
*[[World Health Organization]] (WHO) definition is vague. | |||
==Gross== | ==Gross== | ||
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DDx: | DDx: | ||
*[[lung metastasis|Metastases]]. | *[[lung metastasis|Metastases to the lung]]. | ||
==Microscopic== | ==Microscopic== | ||