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They are generally soft to the touch, movable, and painless. [1] They usually occur just under the skin, but occasionally may be deeper. [1] Most are less than 5 cm (2.0 in) in size. [2] Common locations include upper back, shoulders, and abdomen. [4] It is possible to have several lipomas. [3] The cause is generally unclear. [1]
Soft-tissue sarcomas commonly originate in the upper body, in the shoulder or upper chest. Some symptoms are uneven posture, pain in the trapezius muscle, and cervical inflexibility [difficulty in turning the head]. [12] The most common site to which soft-tissue sarcoma spreads is the lungs. [13]
Symptoms of soft-tissue sarcomas vary, but they often present as firm, oftentimes painless lumps or nodules. [2] Gastrointestinal stromal tumors (GIST, a subtype of soft-tissue sarcoma) often are asymptomatic, but can be associated with vague complaints of abdominal pain, bleeding into the intestines, a feeling of fullness, or other signs of ...
In neonates and young infants, particularly smaller infants, the tip of the xiphoid process may be seen as a palpable lump situated just below the sternal notch. Between the ages of 15 and 29, the xiphoid process typically undergoes fusion with the body of the sternum through a fibrous joint .
CT and chest radiography can be a useful diagnostic exam in visualizing a benign tumor and differentiating it from a malignant tumor. The smaller the tumor on a radiograph the more likely it is to be benign as 80% of lung nodules less than 2 cm in diameter are benign.
The first visible symptom of mycetoma is a typically painless swelling beneath the skin; over several years, this will grow to a nodule (lump). [9] Affected people will experience massive swelling and hardening of the area, in addition to skin rupture and the formation of sinus tracts that discharge pus and grains filled with organisms. [9]
Buschke–Ollendorff syndrome (BOS) is a rare genetic skin disorder associated with LEMD3 that typically presents with widespread painless papules. [1] [5] It is inherited in an autosomal dominant manner. [6] [7] Conditions that may appear similar include tuberous sclerosis, pseudoxanthoma elasticum, neurofibroma, and lipoma, among others. [1]
A dermatofibroma, or benign fibrous histiocytomas, is a benign nodule in the skin, typically on the legs, elbows or chest of an adult. [3] It is usually painless. [3] It usually ranges from 0.2cm to 2cm in size but larger examples have been reported. [3] It typically results from mild trauma such as an insect bite. [3]