Difference between revisions of "Pulmonary meningothelial-like nodule"
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==Microscopic== | ==Microscopic== | ||
Features:<ref name=pmid2830799/> | Features:<ref name=pmid2830799/> | ||
* | *Small cell nests - expanding alveolar septa. | ||
**Whorled appearance/streaming. | |||
**Composed of bland cells with round/ovoid nuclei without appreciable nucleoli. | |||
DDx: | DDx: | ||
*[[Lung tumourlet]]. | *[[Lung tumourlet]] - associated with airway.{{fact}} | ||
*Poorly differentiated carcinoma. | *Poorly differentiated carcinoma. | ||
*[[Lobular carcinoma]].<ref name=pmid23109985>{{Cite journal | last1 = Kfoury | first1 = H. | last2 = Arafah | first2 = MA. | last3 = Arafah | first3 = MM. | last4 = Alnassar | first4 = S. | last5 = Hajjar | first5 = W. | title = Mimicry of Minute Pulmonary Meningothelial-like Nodules to Metastatic Deposits in a Patient with Infiltrating Lobular Carcinoma: A Case Report and Review of the Literature. | journal = Korean J Pathol | volume = 46 | issue = 1 | pages = 87-91 | month = Feb | year = 2012 | doi = 10.4132/KoreanJPathol.2012.46.1.87 | PMID = 23109985 }}</ref> | *[[Lobular carcinoma]].<ref name=pmid23109985>{{Cite journal | last1 = Kfoury | first1 = H. | last2 = Arafah | first2 = MA. | last3 = Arafah | first3 = MM. | last4 = Alnassar | first4 = S. | last5 = Hajjar | first5 = W. | title = Mimicry of Minute Pulmonary Meningothelial-like Nodules to Metastatic Deposits in a Patient with Infiltrating Lobular Carcinoma: A Case Report and Review of the Literature. | journal = Korean J Pathol | volume = 46 | issue = 1 | pages = 87-91 | month = Feb | year = 2012 | doi = 10.4132/KoreanJPathol.2012.46.1.87 | PMID = 23109985 }}</ref> | ||