Fig.  111.  Endogenous  production  of  nuclei  and  young  cells  in  the  cells  of  ;i,
medullary  cancer.
668  MICROSCOPIC  AifATOMY  OF  MEDTJLLAEY  CANCEE.
rations  already  given.*  It  remains  that  I  ahoxJd  speak  of  the  sub-
stance with  which  the  cells  are  associated — the  basis,  intercellular
substance,  or  stroma.
I  need  not  repeat  what  has  been  said  (p.  617)  respecting  the  '  stroma,
so-called,  of  a  cancerous  infiltration, — that  it  is  only  the  tissue  of  the
organ  in  which  the  cancer  is  seated.  What  I  have  now  to  describe  is
the  substance  which  is  proper  to  the  cancer,  and  in  which  the  cancer-
corpuscles  are  suspended  or  imbedded.
(a.)  The  cells  and  nuclei  of  medullary  cancers  may  be  suspended  in
liquid  alone  :  and  the  two,  Kke  a  collection  of  iluid  rather  than  like  a
tumour,  may  be  infiltrated  in  tissues,  or,  more  rarely,  may  be  contained
in  small  cavities.  This  is  not  unfreqnently  the  case  in  veiy  rapid  pro-
ductions of  cancerous  matter,  especially  in  secondary  deposits.  The
liquid  (cancer-serum,  as  it  had  been  named)  is  turbid  ;  it  dims  trans-
mitted light,  and  has  a  finely  molecular  appearance.  With  the  cancer-
corpuscles,  and  usually  with  granular  matter,  it  makes  the  '  cancer-
juice  ;  '  the  peculiar  thick,  creamy  liquid,  tinted  with  yellow,  grey,  pink,
or  purple,  and  easily  diffusible  in  water.  The  quantity  of  corpuscles  in
proportion  to  the  liquid  is  various ;  it  may  be  so  small,  and  the  corpus-
cles themselves  may  be  so  lowly  developed,  that  the  liquid  may  appear
the  chief  constituent  of  the  cancer.
