Granular cell tumor is relatively uncommon, it is usually benign and it can be located anywhere throughout the body. It is uncommon in the digestive tract, and especially in the colon and rectum. The endosonographic features of granular cell tumor are usually a relatively hypoechoic, heterogenous lesion in the submucosa, but this tumor has rarely been reported in the colon. We report here on two cases of granular cell tumors of the colon that were observed by using endoscopic ultrasonograpy for making the differential diagnosis of a submucosal tumor and these tumors were confirmed by microscopic examinations after endoscopic mucosal resection.
Colon ; Diagnosis, Differential ; Gastrointestinal Tract ; Granular Cell Tumor ; Rectum

Granular cell tumor is one of the rare tumorous condition. At present there are estimated 600 reported examples of the tumor in the medical literature. Malignant granular cell tumor is a well established but extremely rare entity that is found in appr- oximately 2 % of all granular cell tumor. Diagnosis should be restricted to neoplasms that are similar in their histological appearance to benign granular cell tumors but can be seperated on the basis of cellular pleomorphism, mitotic activity, and, most importantly, their capacity to produce metastases. The authors had experienced that a 55 years old male patient had two large malignant granular cell tumors at the left thigh and left inguinal area with metastatic lesion.
Diagnosis ; Granular Cell Tumor ; Humans ; Male ; Neoplasm Metastasis ; Thigh

We report a case of granular cell tumor of the breast presenting as a spiculated lesion mimicking carcinoma on mammography and ultrasonography (US).
Breast Neoplasms/pathology ; Breast Neoplasms/diagnosis* ; Case Report ; Female ; Granular Cell Tumor/pathology ; Granular Cell Tumor/diagnosis* ; Human ; Mammography ; Middle Age ; Ultrasonography

Granular cell tumors (GrCTs) of the spinal cord are rare benign tumors with a high rate of local recurrence. Only 6 cases of spinal GrCTs have been reported. GrCT is difficult to distinguish from other benign tumors such as schwannoma using imaging. A radiological "speckled dots" sign may be a useful differentiating feature of GrCT based upon experience with two cases and a review of the literature.
Diagnosis, Differential ; Granular Cell Tumor ; Magnetic Resonance Imaging ; Neurilemmoma ; Recurrence ; Spinal Cord

Granular cell tumor (GCT) is a rare tumor of Schwann cell origin. While this tumor can occur anywhere in the body, GCT of the thyroid gland is very rare. This tumor is benign, despite showing grossly and histologically malignant features, and should be differentiated from oncocytic/Hurthle cell neoplasm and medullary carcinoma of thyroid. Immunohistochemistry can confirm the final diagnosis and differentiate from other tumors and cell types. We report on a GCT of thyroid in a 46-year-old woman with medical history of right breast cancer and review of literatures.
Breast Neoplasms ; Carcinoma, Medullary ; Diagnosis ; Female ; Granular Cell Tumor* ; Humans ; Immunohistochemistry ; Middle Aged ; Thyroid Gland*

Granular cell tumor (GCT) is a rare tumor that originates from the Schwann cells in the skin, soft tissues, and internal organs. Usually, GCTs are clinically benign, although malignant and multifocal forms are very rarely known to occur. Cases of GCT of the perianus are rare, and thus far, no study has reported synchronous GCTs of the perianus and the chest wall. We report a case of a 31-year-old woman with synchronous GCTs of the perianus and the chest wall to have a mind of consideration of the possibility of GCT in the differential diagnosis of perianal tumor.
Adult ; Diagnosis, Differential ; Female ; Granular Cell Tumor ; Humans ; Schwann Cells ; Skin ; Thoracic Wall ; Thorax

Granular cell tumors are relatively uncommon benign laryngeal lesions thought to originate from Schwann cells. The granular cell tumor occurs everywhere in the body, especially in the oral cavity. Most oral cases are located in the tongue. It has no preference for race, sex, and age. Because pseudoepitheliomatous hyperplasia is frequently associated with granular cell tumors, it should be differentiated from squamous cell tumors. Confirmative diagnosis should be made histopathologically and supported by immunohistochemical staining using S-100. Treatment of a granular cell tumor consists of a wide local excision by the endoscopic, transoral or laryngofissure methods. Recently, CO2 laser has been used to remove granular cell tumor with clear resection margin. We have recently experienced a granular cell tumor of larynx, so we report it with a review of literatures.
Continental Population Groups ; Diagnosis ; Granular Cell Tumor* ; Humans ; Hyperplasia ; Larynx* ; Lasers, Gas ; Mouth ; Schwann Cells ; Tongue

Granular cell tumor (GCT) of the breast is a rare clinical entity, and is believed to be of schwannian origin and to follow a benign clinical course. A 50-year-old woman presented with a slowly growing mass in the right breast. Fine needle aspiration cytology revealed a cellular smear containing isolated or clustered cells showing round to oval nuclei with abundant oncocytic granular cytoplasm. Nuclei showed a fine granular chromatin pattern and occasional small single nucleoli. Cell boundaries were poorly defined, and naked nuclei were frequently found. Histologically, the tumor showed features of typical GCT, and immunohistochemical staining findings strongly supported the diagnosis. The present study demonstrates that GCT of the breast can mimic malignant lesions of breast both clinically and radiologically. The recognition of its cytologic features and suspicion of this lesion would undoubtedly aid the correct diagnosis of mammary GCT.
Biopsy, Fine-Needle* ; Breast* ; Chromatin ; Cytoplasm ; Diagnosis ; Female ; Granular Cell Tumor* ; Humans ; Middle Aged

To provide references for the diagnosis and treatment of congenital granular cell tumor (CGCT), by comprehensive analysis of the clinical data, histopathological and immunohistochemical results. Patients with CGCT were involede, from March 2015 to November 2020, at the Department of Oral and Maxillofacial Surgery of the First Affiliated Hospital of Zhengzhou University. A total of 6 children, aged 3-16 days, 1 male and 5 female, 5 maxillary and 1 mandibular, with maximum tumor diameter of 6-70 mm, were included. The lesions of CGCT were single and connected to the alveolar ridge by a pedicle. The surface of the tumor was covered with a vascular network, and two cases had ulcers on the surface of the tumor. All 6 cases had the tumor removed surgically and there was no recurrence or metastasis in the follow-up visit. Although CGCT is rare, it is a benign tumor and generally does not recur or metastasize after surgery, and has a good prognosis. The prenatal imaging, clinical manifestations after delivery, pathological characteristics and immunohistochemical analyses may provide reference for early diagnosis and treatment of CGCT.
Child ; Diagnosis, Differential ; Female ; Gingival Neoplasms/surgery* ; Granular Cell Tumor/surgery* ; Humans ; Male ; Pregnancy

A 20-year-old man presented to our outpatient clinic with hemoptysis, cough, and pleuritic chest pain. His chest radiograph and pulmonary function tests (PFT) were normal. A bronchoscopy showed a small yellowish patch with a regular surface. A direct bronchoscopic biopsy was performed. The pathologic findings showed a benign granular cell tumor. The respiratory symptoms resolved after biopsying the tumor. On follow?up, there were no signs of recurrence of the granular cell tumor after a period of 24 months.
Adult ; Chest Pain/*diagnosis/pathology ; Granular Cell Tumor/*diagnosis/pathology ; *Hemoptysis ; Humans ; Male ; Tracheal Neoplasms/*diagnosis/pathology