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Cerebellar pontine angle and internal auditory canal lipomas [10] Chondroid lipomas are deep-seated, firm, yellow tumors that characteristically occur on the legs of women. [7]: 625 Corpus callosum lipoma is a rare congenital brain condition that may or may not present with symptoms. [11]
In 1993, a genetic polymorphism within lipomas was localized to chromosome 12q15, where the HMGIC gene encodes the high-mobility-group protein isoform I-C. [2] This is one of the most commonly found mutations in solitary lipomatous tumors but lipomas often have multiple mutations. Reciprocal translocations involving chromosomes 12q13 and 12q14 ...
Familial multiple lipomatosis is a hereditary adipose tissue disorder that is characterized by the formation of multiple lipomas that occur in a particular distribution. [1] The lipomas are well-encapsulated, slow-growing, benign fatty tumors. The distribution is defined as being focused in the trunk of the body and extremities. [2]
Chondroid lipoma is an uncommon soft tissue fatty tumor that can develop in deeper or superficial tissues. It often manifests as a painless mass. [3] The subcutis, superficial muscular fascia, or skeletal muscles of the limbs and limb girdles, trunk, head, and neck are where the majority of lesions are located. [4]
[10] [17] The fat deposited around the front of the neck is known as Madelung's collar or horse collar. [13] [5] Fat deposited on the back of the neck between the shoulder blades is known as a dorsocervical fat pad or buffalo hump. [13] [18] Fat deposited in the parotid region is known as hamster cheeks. [10]
Dercum's disease is a rare condition characterized by multiple painful fatty tumors, called lipomas, that can grow anywhere in subcutaneous fat across the body. [1] Sometimes referred as adiposis dolorosa in medical literature, Dercum’s disease is more of a syndrome than a disease (because it has several clinically recognizable features, signs, and symptoms that are characteristic of it and ...
The histological spectrum is rather diverse, ranging from a tumor that primarily consists of spindle cells with only a few fat cells to a tumor that resembles an average lipoma with few spindle cells. Cytologically, multinucleated large cells feature irregular, hyperchromatic, and considerably unusual nuclei, while spindle cells have single ...
Adenolipomas are diagnosed by surgical resection and examining the tumor with a microscope. [5] The presence of eccrine sweat glands are used to distinguish the tumor from a common lipoma . Size and the development of the capsule (tissue surrounding the tumor) can also aid in diagnosis.