Category: S

The segment of the shaft of the humerus just distal to the greater and lesser tubercles. It is a region prone to fractures. The constricted part of the shaft of the humerus below the tuberosities; commonly the site of fracture. Surgery is often indicated because of potential compromise of the density of neurovascular structures in…

A nail with a depressed center and elevated lateral edges. This condition may follow trauma to the nail fold or iron deficiency anemia or may develop naturally.  

Myopia that ends after adult growth is attained.  

Myopia occurring when the eye is attempting to focus on an object but all that is visible is a complete non-contrasting material, such as may occur when looking into dense fog (e.g., while piloting an airplane). No image is produced on the retina.  

Myelopathy wherein there is hardening of the spinal cord.  

Mydriasis resulting from irritation of, or a lesion in, the ciliospinal center of spinal cord.  

Mydriasis resulting from overactivity of the dilator muscle of the iris or of sympathetic nerves supplying that muscle.  

Any of a group of deep fungus infections involving various bodily systems or regions. Included in this group are aspergillosis, blastomycosis, chromoblastomycosis, coccidioidomycosis, cryptococcosis, geotrichosis, histoplasmosis, maduromycosis, moniliasis, mucormycosis, nocardiosis, penicilliosis, rhinosporidiosis, and sporotrichosis.  

Any of a group of fungus infections of the skin. Included in this group are erythrasma, tinea barbae, tinea capitis, tinea corporis, tinea cruris, tinea favosa, tinea pedis, tinea unguium, and trichomycosis axillaris.  

The uppermost of the rotator cuff muscles. It originates along the supraspinatus fossa of the scapula, attaches to the top (superior facet) of the greater tubercle of the humerus, works with the deltoid to abduct the arm, and holds the head of the humerus in the glenoid fossa. It is innervated by the suprascapular nerve.…