Typical symptoms of furuncular myiasis include itching, a sensation of movement, and sometimes sharp, stabbing pain. At first, people have a small red bump that may resemble a common insect bite or the beginning of a pimple (furuncle). Later, the bump enlarges, and a small opening may be visible at the center.
Preseptal cellulitis. 1  Acute onset of swelling, redness, warmth and tenderness of the eyelid. 2  Eyelid oedema in the absence of orbital signs such as gaze restriction and proptosis. 3  Fever, malaise, irritability in children.  Ptosis.
Assessing patients with systemic mastocytosis or mast cell activation syndrome. Tryptase, a neutral protease, is a dominant protein component of the secretory granules of human mast cells. There are 2 forms of tryptase, designated as alpha and beta, which are encoded by 2 separate genes. Both are expressed as inactive proenzymes.