Skin

• aneurysmal benign fibrous histiocytoma
  6 November 2018

  Angiomatoid fibrous histiocytoma
  Aneurysmal benign fibrous histiocytomas are variants of dermatofibromas. These benign blood-filled lesions can mimic malignancies due to their rapid and recurrent growth.
  Open references
  Aneurysmal benign fibrous histiocytoma with atrophic features. Shin JW, Park HS, Kim BK, Kim YA, Kim MG, Won CH, Cho S. Ann Dermatol. 2009 Feb;21(1):42-5. doi:10.5021/ad.2009.21.1.42. PMID: #20548854# Free
  References
  Giant aneurysmal benign fibrous histiocytoma (...)

• dermatofibroma with pleomorphic cells
  6 November 2018

  dermatofibroma with monster cells
  Definition : dermatofibroma with monster cells.
  Histologic examination :
  characteristic findings of a dermatofibroma, including : rete ridge flattening and bridging; a stroma containing scattered, large, round, eosinophilic collagen bundles; a polymorphous dermal infiltrate of spindle and xanthomatous cells with scattered siderophages.
  Some xanthomatous cells demonstrated features consistent with monster cells, including huge bizarre nuclei and one (...)

• cutaneous horn
  6 November 2018

  Etiology
  sebaceous adenoma
  pyogenic granuloma
  sebaceous nevus
  seborrheic keratosis
  wart
  papilloma
  actinic keratosis
  adenoacanthoma
  cutaneous Paget disease
  cutaneous squamous cell carcinoma
  cutaneous basal cell carcinoma
  Bowen disease
  Kaposi sarcoma
  cutaneous metastasis
  See also
  hyperkeratosis / hyperkeratotic anomalies

• melanocytic anomalies
  10 October 2018

  melanocytic lesions
  Images
  https://www.webpathology.com/case.asp?case=1025 https://www.webpathology.com/image.asp?case=1025&n=7
  Types
  congenital melanocytic anomalies
  acquired melanocytic anomalies
  Types
  melanocytic tumors melanocytic naevus dermal melanocytic naevus compound melanocytic naevus junctional melanocytic naevus atypical melanocytic naevus dysplastic melanocytic naevus giant congenital nevus melanomas melanoma-in-situ / melanoma in situ superficial spreading (...)

• melanoma in situ
  9 October 2018

  melanoma-in-situ
  Examples
  3cm plantar melanocytic lesion! Acral lentiginous MIS in situ https://twitter.com/kashingshum/status/816831009442463744

• lichenoid eruption
  17 September 2018

  lichenoid reaction (or lichenoid lesion ) WKP
  Definition : A lichenoid eruption is a skin disease characterized by damage and infiltration between the epidermis and dermis (" lichenoid infiltration ").
  The term lichenoid reaction (or lichenoid lesion) refers to a lesion of similar or identical histopathologic and clinical appearance to lichen planus (i.e., an area which resembles lichen planus , both to the naked eye and under a microscope).
  Sometimes dental materials or certain (...)

• lichen myxedematosus
  17 September 2018

  Definition : Scleromyxedema or lichen myxedematosus is a rare papular mucinosis of chronic and progressive course and unknown etiology. It is commonly associated with monoclonal gammopathy and may show extracutaneous manifestations, affecting the heart, lung, kidney, and nerves.
  The diagnosis is based on four criteria: generalized papular and sclerodermoid lesions; mucin deposition, fibroblast proliferation, and fibrosis in the histopathology; monoclonal gammopathy; and no thyroid (...)

• sclerozing cutaneous diseases
  17 September 2018

  sclerosing skin diseases
  Definition: Sclerosing skin diseases represent a large number of distinct disease entities, which include systemic sclerosis , localized scleroderma , and scleredema adultorum.
  These pathologies have a common clinical appearance and share histological features. However, the specific interplay between cytokines and growth factors, which activate different mesenchymal cell populations and production of different extracellular matrix components, determines the (...)

• cutaneous inflammatory anomalies
  13 September 2018

  See also : cutaneous inflammation
  Types
  acute cutaneous inflammation
  chronic cutaneous inflammation granulomatous cutaneous inflammation
  See also
  cutaneous anomalies

• cutaneous ciliated cyst
  17 July 2018

  WKP
  Definition: Cutaneous ciliated cysts are a cutaneous condition characterized by solitary cysts located on the legs of females.
  Cutaneous ciliated cyst was described as a painless cyst occurring on the lower limbs of women between the ages of 15 and 30 years. The cysts are typically lined by ciliated cuboidal to columnar epithelium with pseudostratified areas and focal squamous metaplasia is occasionally present.
  See also
  cutaneous columnar cyst
  Open references
  The Cutaneous (...)

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