This was consistent with the diagnosis of ancient schwannoma
Schwannoma, ancient schwannoma
, peripheral nerve sheath tumor, pediatric patient.
in oral cavity: a report of two cases.
is a sub-type of schwannomas that is quite rare.
Moriwaki et al., "Retroperitoneal ancient schwannoma
presenting as an adrenal incidentaloma: CT and MR findings," Magnetic Resonance Imaging, vol.
is a rare variant of schwannoma (<1% of CS) .
Yoneda, "Laparoscopic resection of a retroperitoneal ancient schwannoma
: a case report and review of the literature," Anticancer Research, vol.
(4) Mitoses are rare and the nuclei are usually cytologically bland with tapered ends; however, nuclear pleomorphism and atypia may occur as a result of degenerative change, the term ancient schwannoma
being used when these changes are prominent.
One of them was reported by Inokuchi et al., where a 35-year-old woman who had bilateral adrenal masses had undergone laparoscopic adrenalectomy under the suspicion of a malignant tumor, however, pathologic findings indicated a retroperitoneal ancient schwannoma
involving the median nerve: a case report and review of the literature.
masquerading as parotid pleomorphic adenoma.
's are rare, well encapsulated tumours, of long duration, mostly benign in nature.