When patients present with multiple, morphologically similar lung cancer, it can be impossible to distinguish whether the neoplasms are clonally related (reflecting metastatic disease) or clonally unrelated (representing multiple primary cancer).
M. setzeri Petter, 1978 is a rare taxon with limited distribution in dry areas of Namibia, Botswana and western Zambia [ 70, 71]; it is probably a valid species as it can be morphologically distinguished from sympatric Nannomys species [ 63, 72].
Given that the sequence divergence among the nine unidentified lineages is of the same magnitude as among described, morphologically and ecologically distinct species, it can be reasonably assumed that the cryptic lineages within the striolatus/plebeius and hispidus/sericeus clades correspond to good species.
PA may closely mimic oligodendroglioma from which it can often be morphologically distinguished based on its relatively solid pattern of growth and presence (often only focal) of characteristic bipolar cells with Rosenthal fibers and/or eosinophilic granular bodies.
This type of fat deposition is considered especially as undesirable, as it characterizes morphologically those who can be more threatened by increased development of metabolic syndrome, which has been revealed more often at younger age than before [ 22, 23].
Morphologically, GISTs can be subdivided into spindle cells, epithelioid cells, and mixed types.
Species which are visibly or morphologically similar can be distinguished.
Morphologically, tumors can show papillary vs. solid growth patterns.
This stage is highly conserved morphologically, and can be seen as the phylotypic stage for arthropods.
Morphologically, ribosomes can be seen associated with the extended BR mRNP fibril (Mehlin et al. 1992).
