What does it mean when a tumor is granular?

Granular cell tumors (GCTs) are soft tissue tumors that can occur anywhere in the body. They are thought to arise from the cells that surround and insulate the nerve cells in our body (Schwann cells). Most granular cell tumors are benign (non-cancerous), although some may be locally aggressive.

What is a granular tumor?

Listen to pronunciation. (GRAN-yoo-lur sel TOO-mer) A rare type of soft tissue tumor that usually begins in Schwann cells (cells that hold nerve cells in place). It can occur anywhere in the body, but it usually occurs in or under the skin of the head and neck (especially the mouth or tongue).

Are granular cell tumors cancerous?

Granular cell tumors (GCTs), also known as Abrikossoff tumors, are rare soft-tissue neoplasms probably derived from Schwann cells. Most granular cell tumors are benign, although some may be locally aggressive. Less than 2% are malignant, but these are aggressive and associated with a poor prognosis.

How rare is a granular cell tumor?

Background: Granular cell tumors (GCTs) or Abrikossoff’s tumors are rare neoplasms known to originate from Schwann cells in the peripheral nervous system. These lesions are usually benign; malignancy only occurs in 1–2% of cases.

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How do you get rid of a granular cell tumor?

Treatment is with surgical resection. With benign granular cell tumors, local surgical excision is curative, if complete resection is achieved; however, recurrence is possible even withclear margins. Wide en bloc excision is recommended for malignant lesions.

What is granular sarcoma?

Granular Cell Tumours are rare mesenchymal soft tissue tumours that arise throughout the body and are believed to be of neural origin. They often present as asymptomatic, slow-growing, benign, solitary lesions but may be multifocal. 1-2% of cases are malignant and can metastasise.

Are granular cell tumors painful?

These neoplasms are now considered to be of neural origin. The tumor is usually asymptomatic although some patients may experience mild pruritus or pain. A case of a large solitary painful GCT is reported here for its rarity.

Is granular cell tumor hereditary?

GCTs may be part of some genetic syndromes , such as LEOPARD syndrome and neurofibromatosis. Complete surgical removal of the tumor is usually curative, but in some cases the tumors may recur.

What do granular cells do?

Juxtaglomerular cells (JG cells), also known as granular cells are cells in the kidney that synthesize, store, and secrete the enzyme renin. They are specialized smooth muscle cells mainly in the walls of the afferent arterioles (and some in the efferent arterioles) that deliver blood to the glomerulus.

What makes a tumor benign?

Benign tumors are those that stay in their primary location without invading other sites of the body. They do not spread to local structures or to distant parts of the body. Benign tumors tend to grow slowly and have distinct borders. Benign tumors are not usually problematic.

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Do granular cell tumors grow?

It is believed to be of primitive neuroectodermal origin. Typical clinical presentation is a small, uninflamed, slowly growing, yellowish mass approximately 2 cm in diameter. Granular cell tumor has a peculiar clinical behavior ranging from clearly benign, locally aggressive, or manifestly malignant.

What is a cellular tumor?

A giant cell tumor is a rare, aggressive non-cancerous tumor. It usually develops near a joint at the end of the bone. Most occur in the long bones of the legs and arms. Giant cell tumors most often occur in young adults when skeletal bone growth is complete. The exact cause of giant cell tumors remains unknown.