Schwannoma is a benign peripheral nerve sheath tumor that typically involves cranial nerves of the head and neck region. Intraparenchymal occurrence of this tumor is uncommon. Even rarer in this site is the microcystic/reticular pattern of schwannoma. This histologic variant, first described in 2008, has a predilection for visceral organs. Herein, we report the first case of microcystic/reticul...

Cellular schwannoma (CS) is a variety of schwannoma with a predominantly cellular growth, normally developing in middle-aged patients. In this report, we describe a 15-month-old infant with primary cutaneous CS on the knee. Because of its histologically malignant features, CS is sometimes overdiagnosed as a malignant nerve tumor. Therefore, awareness of this variant of schwannoma is important f...

abstract the intraparenchymal schwannomas are very rare tumors with only 52 reported cases . we describe a 38 years old man with eight months history of poorly controlled seizures despite of medical therapy. on brain ct scan a 1.5 x 1.5 cm hypodense enhancing lesion was seen in right posterior-inferior frontal lobe. on brain mri the lesion was hypointense in t1 and hyperintense in t2 with homog...

Schwannoma of parotid gland in a child is rare. We report a rare case of schwannoma in parotid gland in a 10-year-old child who presented with a gradually enlarging swelling in parotid region for the last I year. Color doppler study showed increased vascularity in the lesion with venous return pattern, suggestive of a hemangioma. However, fine needle aspiration cytology showed features consiste...

First described intracochlear schwannoma was in 1917 [1], by temporal bone specimens archive. Intralabyrinthine schwannomas classified according to location of schwannoma in inner ear. For example, intracochlear, intravestibular and intravestibulocochlear schwannoma [2]. Main presenting symptom is hearing loss [3]. Tinnitus, vertigo, imbalance, and aural fullness are other symptoms. We report a...

We report a rare case of schwannoma of the brachial plexus presenting as an enlarging cystic mass. A 52-year-old woman was found to have a rapidly enlarging cystic lesion in the left pectoralis minor space. Surgical exploration finally found that the lesion was schwannoma originating from the fascicles of the brachial plexus. Partial removal of the fluid enabled us to dissect the mass without d...

Cellular Schwannoma (CS) is a well-recognized morphological variant of schwannoma, which has been reported in many usual and unusual sites. We herein report a rare case of a bulky, retroperitoneal cellular schwannoma showing challenging radiological and morphological features. Due to large size and ill-defined margins at CT examination a malignant soft tissue tumor (sarcoma) was suggested. At h...

Schwannomas of the nasal cavity and paranasal sinuses are quite rare, with 4% occurring in this location. Most of them are benign and do not recur when totally removed by surgery. It is very important to distinguish between schwannoma and primary benign neurofibroma. Neurofibromas are lesions having the possibility for malignant transformation and recurrence. A case of schwannoma in the nasal c...

Introduction: Schwannoma, or neurilemmoma, is a benign neoplasm of Schwann cells that is extremely rare in the soft palate. Herein we present a case of a soft palate schwannoma presenting with an ulcerated surface and purplish colour in a 12 year-old girl. This report also introduces a successful surgical technique for coverage of the defect left by surgery.

Testicular schwannoma is a very rare benign scrotal tumor. It is a painless mass, but sometimes referred because of pain or sensory losses. Tumor markers are normal and radical orchidectomy is its best treatment. Here we present an unusual case of intrascrotal schwannoma in a 57 year old man, with a review of the literature.