Pulkit et al19 have reported similar findings with marrow infiltration in 54.5% cases, in patients under 5 years of age with males predominating, both marrow aspirate and trephines
were infiltrated in 16 out of 24 positive cases with only aspirate positivity in 4 (9%) cases and isolated trephine
positivity in another 4 (9%) cases, similarly another study conducted by Franklin et al20 reported bone marrow infiltration in 48.9% cases.
All cases of aplastic anaemia showed mainly fat in the trephine
As a consequence, from that incidence on, we have always used single-use sharp trephines
to achieve clean cutting edges in view of eliminating this possible problem.
Caption: Figure 9: Histological sections of bone core biopsy harvested from the regenerated site using a trephine
The morphology was classic for MCC and similar in appearance to the nonhaematopoietic cell infiltrate present in bone marrow trephine
Two round excision wounds including the epithelial margins were excised 5.0 mm in diameter with a sterile disposable biopsy trephine
and a surgical blade.
(b) Extensive BMN in the trephine
biopsy (H&E x4).
Caption: Figure 7: (a-b) Bone core biopsy carried out with a small trephine
. (c) Newly formed trabecular bone (T) is present, with wide marrow (M) spaces and biomaterials (B).
Using a 6'mm trephine
the cornea was penetrated in the paracentral area to a depth of 1/3 of the stromal thickness, creating a recipient bed for implantation of the free-omental graft (Figure 1A) or cells-containing AM (Figure 1B).
In this process, the first bur that entered was a trephine
2 mm in diameter that removed the basal bone and grafted from the maxillary sinus to then continue with the milling protocol according to the manufacturer and the installation of the dental implant.
The role of bone marrow aspiration and trephine
sample in hematological diagnostic in patients reffered to a teaching hospital in Ghana.
* bone marrow trephine
biopsy: multifactorial cause of anaemia, no obvious infiltrates