Histopathologic examination identified the mass as a neurofibroma
Benign paratesticular lesions include adenomatoid tumours, spermatoceles, cystadenomas, hydroceles, hernias, vericoceles, calculi, polyorchidism, neurofibroma
, tunic fibroma, and leiomyoma, while malignant lesions include liposarcoma, rhabdomyosarcoma, leiomyosarcoma, mesothelioma, and papillary serous tumours.
11) Observations on naturally occurring neoplasms in birds of Australia revealed one case of neurofibroma
in a budgerigar with a nodular mass in the sciatic plexus with involvement of the adjacent kidney and one case of schwannoma in a peach-faced lovebird (Agapornis roseicollis) with a history of incoordination, loss of balance, and seizures.
Differentiating cellular schwannoma from other peripheral nerve sheath tumors such as neurofibroma
, as well as a recently described tumor of the adrenal medulla called sustentaculoma, by histology and immunohistochemistry alone can be challenging.
A key event in the initiation of neurofibroma
development is biallelic inactivation of the NF1 gene (13-15).
Additionally, it has also been reported that it can overlie some benign and malignant lesions, including some nevi, melanoma and neurofibroma
The exact cause of solitary neurofibroma
He is a 14-year-old boy, who had a large neurofibroma
[a tumour formed on a nerve cell sheath] that had been falling over his eye and down his cheek, removed five days ago.
In this case, firm fibrotic lesions to consider include myofibroma, irritation fibroma, neurofibroma
, angiofibroma, myofibromatosis, and fibrotic pyogenic granuloma.
Compression neuropathies Acute Chronic Hereditary Infectious neuropathies Herpes zoster Lyme disease Acquired immunodeficiency syndrome (AIDS) Leprosy mononeuropathy Inflammatory neuropathies Bell's palsy Brachial plexus neuropathy (neuralgic amyotrophy) Acute lumbar plexus neuropathy Vasculitic neuropathy Radiation neuropathy Tumor Neurofibroma
Carcinomatous neuropathy Table 2.
Among them are the cell biology of phagocytosis, mechanism of function and disease of natural and replacement heart valves, the pathology of demyelinating diseases, the pathogenesis of mixed-lineage leukemia, tuberculosis pathogenesis and immunity, and the pathogenesis of plexiform neurofibroma
Differential diagnosis should include neurofibroma
, ganglion cysts, malignant tumors, lipomas, and xanthomas.