Humpath.com - Human pathology

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• glabellar mucous cyst

  23 March

  Etiology
  after rhinoplasty Ectopic free mucosal graft implantation during surgical treatment, herniation of mucosa through intranasal incisions, or improper clearing of mucous epithelial remnants and bony or cartilage parts during the operation are the most accepted theories for the formation of mucous cysts after rhinoplasty.Paywall references
  https://pubmed.ncbi.nlm.nih.gov/20069324/

• sinonasal masses

  23 March

  Masses of the Nose, Nasal Cavity; sinonasal tumors
  Definition: A wide range of masses develop in the nose, nasal cavity, and nasopharynx in children. These lesions may arise from the nasal ala or other structures of the nose, including the mucosa covering any surface of the nasal cavity, the cartilaginous or osseous portion of the nasal septum, the nasal turbinates, and the nasal bones.
  Lesions may also arise from the nasopharynx or adjacent structures and involve the nose by way of (...)

• paranasal sinus retention cyst

  23 March, by admin

  Paranasal sinuses retention cysts; Mucous retention cysts of the paranasal sinuse
  Definition : The paranasal sinuses are air-filled cavities covered by a thin mucous membrane that adhere to the periosteum. Retention cysts in paranasal sinuses are common, incidental finding at radiographic examinations and are reported to occur in between 1.4% to 9.6% of the general population.
  Open references (...)

• myoepithelial carcinoma

  19 March

  Myoepithelial tumors are rare neoplasms that primarily occur in the salivary gland but over the last decade have also been described in other locations, including soft tissue. Myoepithelial carcinoma of soft tissue has shown to have a recurrence rate of 39-42% and distant metastases in 32-53% of patients.
  Paywall references
  https://pubmed.ncbi.nlm.nih.gov/33336464/

• Salzmann nodular degeneration

  13 March

  Definition : Salzmann’s nodular degeneration SND is a slowly progressive condition in which gray-white to bluish nodules measuring 1-3 mm are seen anterior to Bowman’s layer of the cornea, usually bilaterally.
  These elevated nodules can be located near the limbus or in the mid-peripheral cornea.
  Microscopy
  Light microscopy (figure 1) reveals dense deposits of hyalinized, irregularly arranged collagen fibers anterior to a fragmented and sometimes absent Bowman’s layer.
  The tissue overlying (...)

• calcinosis cutis

  12 March

  WKP
  Definition : Calcinosis cutis is a type of calcinosis wherein calcium deposits form in the skin. A variety of factors can result in this condition. The most common source is dystrophic calcification, which occurs in soft tissue as a response to injury.
  In addition, calcinosis is seen in Limited Cutaneous Systemic Sclerosis, also known as CREST syndrome (the "C" in CREST) or in dermatomyositis.
  See also
  calcinosis cutis
  tissular (...)

• second opinion

  7 March

  Peck, M., Moffat, D., Latham, B., Badrick, T., Review of diagnostic error in anatomical pathology and the role and value of second opinions in error preventions, J. Clin. Pathol. 71 (11) (2018) 995-1000.

• diagnostic errors

  7 March

  Peck, M., Moffat, D., Latham, B., Badrick, T., Review of diagnostic error in anatomical pathology and the role and value of second opinions in error preventions, J. Clin. Pathol. 71 (11) (2018) 995-1000.

• prediction of tumor type

  7 March

  Paywall references
  Massard C, Loriot Y, Fizazi K. Carcinomas of an unknown primary origin–diagnosis and treatment. Nat Rev Clin Oncol. 2011 Nov 1;8(12):701-10. doi: 10.1038/nrclinonc.2011.158. PMID: 22048624
  Abraham, J., Spetzler, D., et al. (2021) Machine learning analysis using 77,044 genomic and transcriptomic profiles to accurately predict tumor type. Translational Oncology, 14(3) 101016. https://doi.org/10.1016/j.tranon.2021.101016
  Peck, M., Moffat, D., Latham, B., Badrick, T., (...)

• theca

  3 March

  theca of follicle ; theca folliculi ; follicular theca WKP
  Definition : The theca folliculi comprise a layer of the ovarian follicles. They appear as the follicles become secondary follicles.
  The theca are divided into two layers, the theca interna and the theca externa.
  Theca cells are a group of endocrine cells in the ovary made up of connective tissue surrounding the follicle. They have many diverse functions, including (...)

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