2 Histopathologically, lesions are composed of loose fibrous connective tissue stroma having stellate-shaped fibroblasts with areas of myxoid
degeneration resembling dental papilla covered by peripheral columnar epithelium which itself resembles inner enamel epithelium (covering of columnar epithelium is absent in odontogenic myxomas and odontogenic fibromas).
In addition to large histiocytoid or ganglion-like cells with inclusion-like nucleoli, there are spindle cells with fibrillary cytoplasm (Figure 7), large epithelioid cells with abundant eosinophilic cytoplasm (Figure 8), degenerated cells with smudged chromatin (Figure 9), neoplastic cells filled with mucoid vacuoles, so-called pseudolipoblasts found within myxoid
areas (Figure 10), and large histiocytoid cells with emperipolesis, usually containing intracytoplasmic neutrophils (Figure 11).
The attenuation on CT and high signal intensity on MRI are likely to be related to the loose myxoid
matrix and high water content of angiomyxoma.
Microscopic examination showed stellate and spindle shaped cells having round to oval vesicular nuclei with eosinophilic cytoplasmic processes, embedded in myxoid
All NF types are composed of plump, immature-appearing fibroblasts and myofibroblasts arranged in short, irregular bundles and fascicles in a fibrous and/or myxoid
22, 23) These are characteristic of myxoid
lesions and will be high on T1 and low on T2, however they are not necessary for establishing the diagnosis.
7 There is a significant relationship between thinness of the capsule and histologic subtype of PA, with thin capsule in myxoid
or hypocellular variant.
Metastasis of a myxoid
leiomyosarcoma via the renal and hepatic portal circulation in a sarus crane (Grus antigone).
Microscopically, the tumor is characterized by hypercellular fascicles of spindle cells interrupted by hypocellular myxoid
areas, often with hypercellular areas localized in close proximity to blood vessels [1, 3, 6-8].
The lesion was composed of loosely arranged bundles of cells in an abundant myxoid
matrix (Figure 1B).
Spermatic cord myxoid
liposarcoma presenting as an incarcerated inguinal hernia: Report of a case and review of literatures.
Eight chapters are entitled: introduction: general principles in the evaluation of endometrial samples; endometrial samples with roughly equal ratio of glands to stroma; gland-predominant lesions with ratio of glands to stroma greater than 1:1; malignant epithelial proliferations without significant stromal components; spindle-cell and myxoid
lesions; round-cell lesions; epithelioid-cell lesions; trophoblastic and gestational lesions.