tumors present considerable challenges from the point of view of diagnosis and therapeutic management. temporoparietal region 15 years previously was referred to our outpatient clinic. He presented with a tumor that had CP-673451 increased in size over the previous four years in that area (Fig. 1A). A biopsy of the tumor revealed a cutaneous meningioma. An imaging study using magnetic resonance imaging (MRI) showed encephalomalacia with discrete foci of reactive gliosis in the frontal medium and temporal left gyrus. A left temporoparietal fracture which may have been old was identified as well as a 24×38×39-mm mass of extracranial soft tissue reaching the skin CP-673451 (Fig. 1B). No infiltrations of the underlying bone or intracranial components were observed. Fig. 1 (A) Skin tumor in the temporoparietal region. (B) T2-weighted magnetic resonance imaging. The tumor is hyperintense relative to the gray matter. A bloc resection was performed including a skin segment infiltrated by the tumor the aponeurotic galea the temporal muscle and cranial periosteum without affecting the bone (Fig. 2A). A paresis of the frontal branch of the left facial nerve was identified during follow-up in our outpatient clinic. An electrophysiological study was requested two months after the surgery and a partial axonal injury was observed in the frontal branch of the left facial nerve showing signs of reinnervation. Fig. 2 (A) Bloc resection of the tumor in the left parietal region. A skin segment was included due to infiltration. (B) Seven months after the tumor excision. A histological study revealed multiple nests of elongated cells exhibiting a swirling pattern and with little nuclear pleomorphism. The tumor displayed an infiltrative character infiltrating adipose tissue and muscle tissue (Fig. 3). It was located less than 1 mm through the deep medical margin. An immunohistochemical research was performed as well as the tumor cells examined positive for vimentin epithelial membrane antigen (EMA) and progesterone. MIB-1 proliferation index was around 3% of the full total cell quantity. Fig. 3 Histological research (H&E CP-673451 ×100). Multiple nests of elongated cells are located having a swirling design and with small nuclear pleomorphism. Seven weeks after medical procedures the patient continues to be asymptomatic and offers regained full flexibility from the remaining frontal muscle tissue (Fig. 2B). Meningiomas will be the many common tumors of neurological source in adults accounting for 15%-30% of most intracranial neoplasms . They most present intracranially commonly. Extracranial meningiomas represent 1%-2% of most meningiomas . The ectopic area of the tumors beyond your central nervous program can derive Klf5 from the immediate expansion of intracranial tumors through the foramina metastatic meningiomas or meningiomas of major origin. Within major ectopic meningiomas cutaneous meningiomas certainly are a uncommon anatomical variant. In 1974 Lopez et al.  categorized cutaneous meningiomas into three organizations The 1st group (type I) can be congenital. It presents at delivery and appears for the head and paravertebral pores and skin usually. It is due to ectopic arachnoid cells stuck in the dermis and subcutaneous cells CP-673451 during embryonic advancement. The next group (type II) includes meningiomas increasing to your skin through contiguity. They have a tendency to come in areas surrounding the optical eye ears nose and mouth. It’s been hypothesized they are shaped from the remnants of arachnoid cells that expand through the cranial and vertebral nerves . The 3rd group (type III) comprises meningiomas which have spread to your skin from intracranial tumors distressing defects or surgical treatments. These tumors are more prevalent in adults. It’s been postulated that post-traumatic cutaneous meningiomas show up because of the interruption from the craniofacial bone tissue structures as well as the root meninges resulting in meningeal cells migration inside the dermis and producing a tumor some years later on . Inside our case we noticed a cutaneous meningioma owned by type III relating to Lopez’s classification. Type III tumors are unusual although some instances of post-traumatic cutaneous meningioma have already been reported in the books [2 4 5 Even though the first group comprises congenital tumors they often aren’t diagnosed until some years possess handed. The mean age group for the analysis of tumors owned by the next group can be 48 years and 54 years for type III. The female-to-male percentage.