tumors associated with mycobacteria in lymph nodes of HIV-positive patients: 'Kaposi sarcoma with mycobacteria' and 'mycobacterial pseudotumor'.
It is also typically expressed by solitary fibrous tumor, gastrointestinal stromal tumor, DFSP, epithelioid sarcoma, spindle cell
lipoma, synovial sarcoma, and vascular tumors.
Diagnosis of spindle cell
neoplasm of neural origin was established by strong, diffuse positive reactivity against S100 and negative reactivity for both CD68 and smooth muscle actin (ASMA) (Fig 1).
Histopathology report demonstrated a benign lesion with abundant ropy collagen with native smooth muscle, vessels, and rare fibroblast-like spindle cells
In the histopathological examination, the mass consisted of spindle cells
showing oval or spindle nuclei, inconspicuous nucleoli, pale to eosinophilic cytoplasm, hypercellular sites and collagenized hypocellular sites consisting of myxoid stroma.
is characterized as stromal myofibroblast if it is positive to alpha-SMA and may show positivity for Vimentin or Desmin.
The tubular structures were elongated, small, tightly packed, arranged in parallel bands alternating with swirling disposition, suggesting in some areas a spindle cell
appearance (Figure 1).
All the pathology, except for the left small finger, returned as spindle cell
type is the most common type and shows cells forming poorly cohesive sheets or predominant spindle cell
Cellular angiofibroma: analysis of 25 cases emphasizing its relationship to spindle cell
lipoma and mammary-type myofibroblastoma.
melanoma is a rare morphologic variant of melanoma.
Histopathologic examination indicated a spindle cell