tumoral architectural pattern
Types
trabecular pattern (trabecular tumors)
papillary pattern (papillary tumors)
tubular pattern (tubular tumors)
diffuse pattern (compact pattern or solid pattern)
scleronodular pattern (scleronodular tumors)
herringbone pattern
plexiform pattern (plexiform tumors)
hemangiopericytic pattern
angular pattern
lobular pattern (lobular tumors)
glandular pattern (glandular tumors)
- acinar pattern (acinar tumors)
- adenomatous pattern (adenomatous tumors)
alveolar pattern (alveolar tumors)
dual composition (biphasic tumors)
Tumoral formations
whorl formations
circular formations
oval formations
tumoral clefts
tumoral laceworks
tumoral bone formation
tumoral calcifications
Areas
spindle areas
myxoid areas
Appearance of cellular sheets
sheets of small round cells
sheets of small cells with eccentric nuclei
sheets of large round cells
sheets of large cells with eccentric nuclei and abundant eosinophilic cytoplasm (myoid cells)
sheets of spindle cells
sheets of strap cells
sheets of stellate cells
Tumoral architectural patterns (examples)
papillary pattern
- thyroid papillary carcinoma
- renal papillary carcinoma
tubular pattern
- tubulous adenoma
- adenocarcinomas
trabecular pattern
- endocrine carcinomas
- carcinoid tumors
- paragangliomas (pheochromocytoma)
solid pattern or compact pattern
scleronodular pattern
- scleronodular Hodgkin lymphoma
- fibrosarcomas
- synovialosarcoma
hemangiopericytomatous pattern
- infantile myofibromatosis
See also
References
Potter JD. Morphogens, morphostats, microarchitecture and malignancy. Nat Rev Cancer. 2007 Jun;7(6):464-74. PMID: 17522715
Books
Tumors: An atlas of differential diagnosis, by Cyril Toker. University Park Press, Baltimore, 1983. ISBN: 0839118120