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It is called onion skin periosteal reaction because it resembles the layers of an onion. These layers are formed due to any pathological process that leads to the variable, excessive growth of the bone. [1] Onion skin periosteal reaction is seen in osteosarcoma, [2] Ewing sarcoma and Langerhans cell histiocytosis. [3]
Download QR code; Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Onion skin may refer to ...
Download QR code; Print/export Download as PDF; Printable version; In other projects ... Pages in category "Dermatology journals" The following 33 pages are in this ...
The clear epidermal cells exist in a single layer and do not contain chloroplasts, because the onion fruiting body (bulb) is used for storing energy, not photosynthesis. [3] Each plant cell has a cell wall, cell membrane, cytoplasm, nucleus, and a large vacuole. The nucleus is present at the periphery of the cytoplasm.
Scale forms on the skin surface in various disease settings, and is the result of abnormal desquamation. In pathologic desquamation, such as that seen in X-linked ichthyosis, the stratum corneum becomes thicker (hyperkeratosis), imparting a "dry" or scaly appearance to the skin, and instead of detaching as single cells, corneocytes are shed in clusters, which forms visible scales. [2]
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Onionskin or onion skin is a thin, lightweight, strong, often translucent paper, [1] named for its resemblance to the thin skins of onions. [2] It was usually used with carbon paper for typing duplicates in a typewriter , for permanent records where low bulk was important, or for airmail correspondence. [ 3 ]
An onion (Allium cepa L., from Latin cepa meaning "onion"), also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus Allium. The shallot is a botanical variety of the onion which was classified as a separate species until 2011.