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Malignant Trichoblastoma with Sarcomatous Stroma in a Rabbit.
J Comp Pathol
November 2022
Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan. Electronic address:
A 10-year-old female rabbit developed an unencapsulated and asymmetrical superficial dermal mass on the neck. The tumour was invasive with central ulceration and contained three different histological components, namely trichoblastomatous, basal cell carcinoma (BCC)-like and undifferentiated carcinomatous. In the trichoblastomatous component, which occupied most of the tumour, epithelial neoplastic cells formed ribbon-like cellular trabeculae with a palisaded appearance and stromal giant cells.
View Article and Find Full Text PDF[Giant trichoblastic carcinoma: 3 cases].
Ann Dermatol Venereol
December 2019
Service de dermatologie, hôpital d'instruction des armées Sainte-Anne, boulevard Sainte-Anne, 83000 Toulon, France. Electronic address:
A giant trichoblastic carcinoma.
Arch Craniofac Surg
December 2018
Department of Plastic and Reconstructive Surgery, School of Medicine, Kyungpook National University, Daegu, Korea.
Trichoblastic carcinoma usually occurs as a malignant transformation of the trichoblastoma, but is very rare. A 25-year-old man was admitted with trichoblastoma in the nuchal area with frequent recurrences since birth. The preoperative neck magnetic resonance image revealed lobulated soft tissue lesions involving superficial fascia and infiltrating into both proximal trapezius muscles.
View Article and Find Full Text PDF[Not Available].
Ann Dermatol Venereol
November 2018
Clinique dermatologique, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, 67091 Strasbourg cedex, France. Electronic address:
Basal cell carcinoma (BCC) is a very common tumor, of which the diagnosis is generally easy. Clinical prediction of histopathological subtype however is however often difficult, i.e.
View Article and Find Full Text PDFImmunohistochemical analysis of cytokeratin expression in various trichogenic tumors.
Am J Dermatopathol
August 1999
Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan.
The immunophenotypes, especially expression of cytokeratins, in 13 cases of trichogenic tumors were examined to investigate their histogenesis. Four cases of multiple trichoepithelioma, five cases of classical solitary trichoepithelioma, one case of desmoplastic trichoepithelioma, one case of trichogenic trichoblastoma, one case of trichoblastic fibroma, and one case of giant solitary trichoepithelioma were retrieved. The immunoreactivities of the epithelial nests and the keratinous cysts in these tumors were similar to those of the outer root sheath and the infundibulum of normal hair follicles, respectively.
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