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Metallic Solids02:37

Metallic Solids

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Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
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Structures of Solids02:22

Structures of Solids

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Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
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Network Covalent Solids02:18

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Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
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Reporting and recording are crucial in data documentation. The timely, thorough, and accurate documentation of facts is essential when recording patient data. Failure to record findings during an assessment or interpretation of a problem will result in loss of information and make the patient document unreliable. The reader is left with general impressions if the information is not specific. A recording is documenting data of the individual's health information in a traceable, secure, and...
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Molecular and Ionic Solids02:54

Molecular and Ionic Solids

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Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
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A hand-off report, also known as a change-of-shift report, is a crucial nursing process that ensures the smooth transition of patient care responsibilities between nursing staff.
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Extrapancreatic solid pseudopapillary neoplasm followed by multiple metastases: Case report.

Hao Wu1, Yan-Fen Huang1, Xiang-Hong Liu1

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World Journal of Gastrointestinal Oncology
|January 2, 2018
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Solid pseudopapillary neoplasm (SPN), a rare pancreatic tumor, can occur in the mesentery. This unusual case highlights SPN

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Area of Science:

  • Gastroenterology
  • Surgical Oncology
  • Pathology

Background:

  • Solid pseudopapillary neoplasm (SPN), or Gruber-Frantz tumor, is a rare pancreatic neoplasm predominantly affecting young females.
  • SPN typically has low malignant potential but requires surgical resection due to its potential to mimic other conditions.

Observation:

  • An atypical case of SPN occurred in the mesentery of a 40-year-old male patient.
  • The mesenteric tumor exhibited histopathological characteristics similar to pancreatic SPN.
  • The patient developed multiple metastases following surgical removal of the mesenteric mass.

Findings:

  • Despite complete surgical resection, the patient succumbed to recurrent disease four years post-operation.
  • Histopathological analysis confirmed the mesenteric neoplasm's similarity to pancreatic SPN.
  • The unusual presentation suggests a potential origin from pancreatic progenitor cells.

Implications:

  • This case underscores the importance of considering SPN in extranigmatic locations.
  • Further research into histopathological markers is crucial for predicting SPN recurrence.
  • Understanding SPN's origins may improve diagnostic and therapeutic strategies for this rare tumor.