Macroscopy

Articles

• rhabdomyosarcomas
  25 November 2003

  Definition: Rhabdomyosarcoma (RMS) is the most common soft-tissue sarcoma of childhood. Rhabdomyosarcoma is a soft tissue tumor of striated muscle origin. It is observed mainly in children and adolescents.
  Images
  Alveolar rhabdomyosarcoma. PCR: pos PAX3-FOXO1 (worse prognosis c/w PAX7). Scattered MNGC rhabdomyoblasts.
  https://twitter.com/histiocytosisX/status/699599913013923840
  ARMS : focal desmin w/ diffuse myogenin in A-RMS (PCR + PAX3-FOXO1) (...)

• neuroglial heterotopia
  2 November 2006

  brain heterotopia, cerebral heterotopia, heterotopic neural nodules, neural heterotopia, neuroglial ectopia, Neuroglial choristoma
  Definition: Heterotopic neural nodules is a type of neuroectodermal malformation. They, are particularly dangerous because of the possibility of intracranial extension.
  Neuroglial heterotopia, heterotopic brain tissue, or differentiated neural tissue outside the cranial vault is uncommon, and these anomalies most commonly occur in the nasal cavity. (...)

• hepatoblastoma
  16 March 2004

  hepatoblastomas
  Definition: Hepatoblastoma is a malignant embryonal liver tumor that occurs almost exclusively in infants and very young children.
  Image
  Macroscopy : https://twitter.com/DraEosina/status/762631086207893506
  Cytology: https://twitter.com/AdamGomezMD/status/720632495671087104
  https://twitter.com/MArnold_PedPath/status/736000944303808512
  Hepatoblastoma is composed of epithelial and mesenchymal elements in varying proportions and at various stages of differentiation. The (...)

• Wilson disease
  30 May 2003

  Wilson’s disease

• endometrial polyp
  17 November 2004

  Clinical synopsis
  asymptomatic or associated with bleeding
  associated with tamoxifen therapy for breast cancer
  Macroscopy synopsis
  sessile or pedunculated mass
  cystically dilated glands
  multicystic cut surface
  Microscopy synopsis
  endometrial glands unresponsive to progesterone stimulation
  may have severe atypia
  fibrous stroma with spindled
  fibroblast-like cells
  abundant extracellular connective tissue
  polypoid shape
  attenuated surface endometrium on 3 sides (...)

• ovarian cysts
  2 September 2003

  Benign Cystic Lesions of the Ovary, ovaraian benign cystic lesions
  An ovarian cyst is any collection of fluid, surrounded by a very thin wall, within an ovary. An ovarian cyst can be as small as a pea, or larger than an orange.
  Most ovarian cysts are functional in nature and harmless (benign). In the US, ovarian cysts are found in nearly all premenopausal women, and in up to 14.8% of postmenopausal women.
  Images
  polycystic ovary (...)

• ovotesticular DSD
  22 December 2005

  true hermaphrodism, ovotesticular DSD, ovotesticular disorder of sexual differentiation, true hermaphroditism
  Definition: Presence of both ovarian and testicular tissue in the same gonad (ovotesis) or in a contralateral gonad (ovary on one side, testis on another one). (Formerly: true hermaphroditism)
  True hermaphroditism is defined as the presence of both testicular and ovarian tissue in a patient. Affected individuals may have either a female or a male phenotype with variable degrees of (...)

• necrosis
  9 November 2004

  tissular death

• ovarian serous cystadenoma
  2 November 2004

  Synopsis
  benign ovarian cystic tumors
  75% unilateral / 25% bilateral
  smooth glistening cyst wall
  papillary tumors have papillary projections on outer surface or protruding into cystic cavity
  single layer of tall, columnar, ciliated cells resembling normal tubal epithelium;
  stroma contains spindly fibroblasts;
  no atypia
  no architectural complexity
  no invasion
  See also
  ovarian cysts ovariam cystadenomas
  ovarian (...)

• polyps
  17 November 2004

  polyp. Adj. polypous, polypoid WKP
  Definition: A polyp is an abnormal growth of tissue projecting from a mucous membrane.
  If it is attached to the surface by a narrow elongated stalk, it is said to be pedunculated. If no stalk is present, it is said to be sessile.
  Polyps are commonly found in the colon, stomach, nose, ear, sinus(es), urinary bladder, and uterus.
  They may also occur elsewhere in the body where mucous membranes exist like the cervix, vocal folds, and small intestine. (...)

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