melanotic sarcoma liver Peritoneal Sarcomatosis Versus Peritoneal Carcinomatosis: Imaging Findings at MDCT Liver Atlas: Diagnosis: Metastasis -

Distinct clinical and pathological features are associated with the BRAF(T1799A(V600E)) mutation in primary melanoma

These spots, or lip pigmentation, can come from many things

Abdel-Malek ZA, Swope VB, Starner RJ, Koikov L, Cassidy P, Leachman S

Semin Diagn Pathol 15:210215 Kornberg R, Ackerman AB (1975) Pseudomelanoma

Spinal Schwannomas are mostly observed in the cervical and lumbar region and may cause associated signs and symptoms Cervical Spinal Schwannoma may result in neck pain Thoracic Spinal Schwannoma may present pain in the arms and back Lumbar Spinal Schwannoma may show pain in the lower back and legs Cellular Schwannoma: Usual locations are along the vertebral column/spinal cord (paravertebral Cellular Schwannoma), retroperitoneum (retroperitoneal Cellular Schwannoma), mediastinum (mediastinal Cellular Schwannoma), and pelvis (pelvic Cellular Schwannoma) It may also involve the 5th cranial nerve (facial nerve), called facial nerve Cellular Schwannoma It can affect the 8th cranial nerve, also called vestibular nerve Cellular Schwannoma If the tumor is present near a bone, it can invade into the surrounding bone causing significant bone damage Plexiform tumors are frequently found in association with other malignant brain tumors such as glioma and meningioma In case the facial nerve is affected, it can cause swallowing difficulties, altered taste function, and abnormal eye movement Schwannoma may be present as an asymptomatic mass on the arms (commonly on the brachial plexus nerve) or legs (on the sciatic nerve mostly) How is Schwannoma Diagnosed