ulcerate
81Pyoderma gangrenosum — An ulcerating condition of the skin leading to hollowed out areas (ulcers) with heaped up borders and a typical appearance. The lesion(s) usually begin as soft raised nodules on the skin which proceed to ulcerate. The ulcers enlarge and the skin… …
82Ulcer — An area of tissue erosion, for example, of the skin or lining of the gastrointestinal (GI) tract. Due to the erosion, an ulcer is concave. It is always depressed below the level of the surrounding tissue. Ulcers can have diverse causes. Ulcers on …
83Yaws — A common chronic infectious disease that occurs mainly in the warm humid regions of the tropics with characteristic bumps on the skin of the face, hands, feet and genital area. Almost all cases of yaws are in children under 15 years of age. The… …
84Balantidium — A genus of ciliates (family Balantidiidae) found in the digestive tract of vertebrates and invertebrates. [G. balantidion, dim of ballantion, a bag] B. coli a very large parasitic ciliate species, usually 50–80 μm in length, reaching up to 200 μm …
85bartonellosis — A disease caused by infection with a species of bacteria belonging to the genus Bartonella, * * * bar·ton·el·lo·sis .el ō səs n, pl lo·ses .sēz a disease or infection caused by bacteria of the genus …
86entomophthoramycosis — A disease caused by fungi of the genera Basidiobolus or Conididiobolus; subcutaneous or paranasal tissues are invaded by broad nonseptate hyphae that become surrounded by eosinophilic material. A form of zygomycosis. See zygomycosis.… …
87fistula — An abnormal passage from one epithelial surface to another epithelial surface. [L. a pipe, a tube] abdominal f. a fistulous passage connecting one of the abdominal viscera …
88hyphomycosis — A disease of horses and mules (rarely of humans) caused by the fungus Pythium insidiosum (Hyphomyces destruens), characterized by granulomatous and necrotic lesions that appear on the head and lower legs, ulcerate, and enlarge by subcutaneous… …
89Hypoderma — A genus of botflies whose larvae are the cause of a tropical form of myiasis linearis (cutaneous larva migrans) of man; occasionally they invade the interior of the eye. Two species, H. bovis and H. lineatum, are botflies of cattle. The ova of H …
90sporotrichosis — A chronic cutaneous mycosis spread by way of the lymphatics and caused by inoculation of Sporothrix schenckii, typically rare in tissue sections but rapidly growing in cultures. Extracutaneous s. probably originates in the lung but disseminates… …
