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Matsumoto K, Kishimoto TE, Yamamoto M, Michishita M, Takahashi K, Yoshimura H. Apocrine carcinoma-and-malignant myoepithelioma in a dog: a case of simultaneous malignant progression of both luminal epithelium and myoepithelium. J Vet Diagn Invest 2023; 35:789-794. [PMID: 37786275 PMCID: PMC10621541 DOI: 10.1177/10406387231202529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023] Open
Abstract
A 9-y-old male Boxer dog developed a mandibular skin tumor, which histologically had a locally invasive growth pattern composed of bilayered structures of inner eosinophilic cuboidal tumor cells and outer clear polygonal tumor cells with cytoplasm containing glycogen granules. Both cell populations gradually changed from low-grade morphologic features to highly anaplastic ones. Immunohistochemically, the eosinophilic tumor cells were positive for cytokeratin 8, a useful marker for luminal epithelial cells. In contrast, the clear tumor cells expressed several myoepithelial markers, including α-smooth muscle actin, p63, and cytokeratin 14. Based on these histologic and immunohistochemical characteristics, we diagnosed this apocrine sweat gland tumor as a carcinoma-and-malignant myoepithelioma with high-grade transformation of both luminal and myoepithelial cells. Our case may be a helpful reference for the histogenesis of carcinoma-and-malignant myoepithelioma, in which both the luminal epithelial and myoepithelial components are malignant.
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Affiliation(s)
- Kana Matsumoto
- Laboratory of Physiological Pathology, Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University (NVLU), Tokyo, Japan
| | - Takuya Evan Kishimoto
- Laboratory of Physiological Pathology, Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University (NVLU), Tokyo, Japan
- Fujifilm Vet Systems, Tokyo, Japan
| | - Masami Yamamoto
- Laboratory of Physiological Pathology, Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University (NVLU), Tokyo, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University (NVLU), Tokyo, Japan
| | - Kimimasa Takahashi
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University (NVLU), Tokyo, Japan
| | - Hisashi Yoshimura
- Laboratory of Physiological Pathology, Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University (NVLU), Tokyo, Japan
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Doukas D, Liakou Z, Koukoulis GK, Tontis D. Immunohistochemical Expression of Keratins in Normal Ovine Skin and in Chronic Dermatitis due to Sarcoptes scabiei. J Comp Pathol 2021; 183:63-71. [PMID: 33714434 DOI: 10.1016/j.jcpa.2021.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/30/2020] [Accepted: 01/13/2021] [Indexed: 12/27/2022]
Abstract
Hyperproliferation of epidermal keratinocytes is a major histopathological feature of chronic Sarcoptes scabiei dermatitis. We investigated the immunohistochemical expression of several keratins in scabietic dermatitis in sheep and in the skin of healthy sheep, using a panel of commercially available anti-human antibodies for keratins. Keratins AE1/AE3 and 34BE12 were expressed in all epithelial structures in healthy skin. Keratin MNF116 was expressed in the stratum basale and in the three lowest layers of the stratum spinosum, in follicular epithelium and in apocrine glands. Keratin K5/6 expression was seen in the stratum basale, in the two lowest cell layers of the stratum spinosum, in the outer root sheath of hair follicles and in myoepithelial cells of apocrine glands. K14 expression was observed in the stratum basale, in locally extensive regions of the two lowest cell layers of the stratum spinosum, in the outer root sheath of hair follicles and in sebaceous glands. Immunolabelling of K19 antigen was confined to apocrine glands. In scabietic skin, immunolabelling of keratin 34BE12 was seen in all layers of hyperplastic stratum spinosum and stratum granulosum but was restricted to some locally extensive regions in hyperkeratotic and parakeratotic stratum corneum. Keratin MNF116 was widely labelled in all layers of hyperplastic stratum spinosum and stratum granulosum. There was expansive labelling of K5/6 keratin in all layers of hyperplastic stratum spinosum and in locally extensive regions of stratum granulosum, as well as in hyperkeratotic or parakeratotic stratum corneum. Expansive labelling of K14 keratin was detected in all layers of hyperplastic stratum spinosum and in the layers of the hyperplastic stratum granulosum. K5/6 and K14 keratins were also labelled in the inner root sheath of occasional hair follicles.
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Affiliation(s)
- Dimitrios Doukas
- Laboratory of Veterinary Pathology, Faculty of Veterinary Science.
| | - Zoi Liakou
- Laboratory of Veterinary Pathology, Faculty of Veterinary Science
| | - George K Koukoulis
- Laboratory of Pathology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Karditsa, Larissa, Greece
| | - Dimitrios Tontis
- Laboratory of Veterinary Pathology, Faculty of Veterinary Science
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Pieper JB, Stern AW, LeClerc SM, Campbell KL. Coordinate expression of cytokeratins 7 and 14, vimentin, and Bcl-2 in canine cutaneous epithelial tumors and cysts. J Vet Diagn Invest 2015; 27:497-503. [PMID: 26185124 DOI: 10.1177/1040638715594115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Forty-seven canine cutaneous epithelial tumors and cysts were examined to determine coordinate expression of cytokeratins 7 (CK7) and 14 (CK14), vimentin, and Bcl-2 using commercially available antibodies. Within non-affected normal skin adjacent to tumors or cysts, CK7 expression was observed in luminal cells in apocrine glands; CK14 expression was observed in the stratum basale, stratum spinosum, stratum granulosum, basal layer of outer root sheath, sebaceous glands, and myoepithelial cells of apocrine glands; vimentin expression was observed in dermal papilla and scattered non-epithelial cells within the epidermis; and Bcl-2 expression was observed in scattered non-epithelial cells in the epidermis and some apocrine glands. The pattern of expression of CK7 and CK14 in cases of adenocarcinoma of the apocrine gland of the anal sac (CK7+/CK14-) and hepatoid gland tumors (CK7-/CK14+) may prove useful for diagnostic purposes. Loss of expression of CK14 and vimentin, identifying myoepithelial cells, was observed in apocrine and ceruminous adenocarcinomas. Differences in patterns of expression of Bcl-2 were observed between infundibular keratinizing acanthomas compared to trichoepitheliomas.
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Affiliation(s)
- Jason B Pieper
- Department of Veterinary Clinical Medicine (Pieper, Campbell), University of Illinois, Urbana, ILDepartment of Pathobiology (Stern), University of Illinois, Urbana, ILVeterinary Diagnostic Laboratory (LeClerc), University of Illinois, Urbana, IL
| | - Adam W Stern
- Department of Veterinary Clinical Medicine (Pieper, Campbell), University of Illinois, Urbana, ILDepartment of Pathobiology (Stern), University of Illinois, Urbana, ILVeterinary Diagnostic Laboratory (LeClerc), University of Illinois, Urbana, IL
| | - Suzette M LeClerc
- Department of Veterinary Clinical Medicine (Pieper, Campbell), University of Illinois, Urbana, ILDepartment of Pathobiology (Stern), University of Illinois, Urbana, ILVeterinary Diagnostic Laboratory (LeClerc), University of Illinois, Urbana, IL
| | - Karen L Campbell
- Department of Veterinary Clinical Medicine (Pieper, Campbell), University of Illinois, Urbana, ILDepartment of Pathobiology (Stern), University of Illinois, Urbana, ILVeterinary Diagnostic Laboratory (LeClerc), University of Illinois, Urbana, IL
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Canine aural cholesteatoma: a histological and immunohistochemical study. Vet J 2014; 200:440-5. [PMID: 24775276 DOI: 10.1016/j.tvjl.2014.03.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 01/31/2014] [Accepted: 03/19/2014] [Indexed: 11/22/2022]
Abstract
Canine aural cholesteatoma is an epidermoid cyst that forms in the middle ear cavity as a rare complication of otitis media but the aetiopathogenesis remains controversial. In the present study, 13 cases of canine aural cholesteatoma were investigated histologically and immunohistochemically and compared with cases of chronic otitis. The immunohistochemical investigation was performed using the following monoclonal antibodies: anti-cytokeratins (CK) 14, 16, 8/18, and 19, and anti-Ki67. The proliferative indexes (PIs) of cholesteatomata and otitis epithelium were calculated as the percentage of Ki67 positive nuclei/total nuclei. Histologically, the cholesteatomata were composed of a hyperplastic, hyperkeratotic epithelium (matrix) resting on a fibrous perimatrix, infiltrated by inflammatory cells and devoid of cutaneous adnexa. Immunohistochemically, the cholesteatoma epithelium was CK14- and CK16-positive, and CK8/18- and CK19-negative. A similar pattern of CK expression was found in otitis externa. In otitis media, ciliated epithelium stained CK8/18- and CK19-positive in all layers, CK14-positive in the basal layers, and CK16-negative. The mean PIs in cholesteatomata and otitides were 18.8 and 17.8, respectively. The immunohistochemical pattern of CK expression in cholesteatomata, when compared with chronic otitis, was suggestive of hyperproliferative epithelium, but its origin could not be demonstrated. Comparable PI values were obtained in cholesteatoma and in chronic otitis, which confirmed that Ki67 is a valuable indicator of a hyperproliferative state, but not a predictor of aggressiveness.
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Mineshige T, Yasuno K, Sugahara G, Tomishita Y, Shimokawa N, Kamiie J, Nishifuji K, Shirota K. Trichoblastoma with abundant plump stromal cells in a dog. J Vet Med Sci 2014; 76:735-9. [PMID: 24430656 PMCID: PMC4073344 DOI: 10.1292/jvms.13-0516] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Histopathological and immunohistochemical examinations were made on a cutaneous
tumor on the head of an 11-year-old female mixed-breed dog. The tumor was well demarcated
and comprised multilobular structures of neoplastic epithelial cells with abundant plump
peritumoral stromal cells. The neoplastic cells formed irregular cell cords or trabeculae
and were arranged in characteristic palisades at the periphery. Immunohistochemically,
neoplastic cells were positive for p63 and the several cytokeratins examined. In contrast,
the plump peritumoral stromal cells were positive for vimentin and unevenly for nestin, a
neuroepithelial stem cell protein. The stromal cells prominently proliferated in proximity
to epithelial neoplastic cells, suggesting a close interaction between these two cell
types.
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Affiliation(s)
- Takayuki Mineshige
- Research Institute of Biosciences, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
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Apocrine Sweat Gland Ductal Adenoma with Sebaceous Differentiation in a Dog. Case Rep Vet Med 2013. [DOI: 10.1155/2013/167923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A 7-year-old male, Border Collie, developed a firm mass, measuring approximately 1 cm in diameter, in the left buccal skin. Histologically, the mass was composed of ductal structures lined by bilayered luminal epithelial and basaloid tumor cells along with a few nests of sebaceous cells. Immunohistochemical staining revealed that the luminal epithelial tumor cells were positive for cytokeratin (CK, CAM5.2) and CK19 but not for CK14 or p63. In contrast, the basaloid tumor cells were positive for CK14, p63, andαSMA but not for CK19 or CAM5.2. CK8 expression was observed in both luminal epithelial and basaloid tumor cells. The tumor cells with sebaceous differentiation were positive for CK14 but not for the other markers. This is the first case of an apocrine sweat gland ductal adenoma with sebaceous differentiation occurring in the buccal skin of a dog.
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Piviani M, Sánchez MD, Patel RT. Cytologic features of clear cell adnexal carcinoma in 3 dogs. Vet Clin Pathol 2012; 41:405-11. [DOI: 10.1111/j.1939-165x.2012.00434.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Martina Piviani
- Department of Pathobiology, School of Veterinary Medicine; University of Pennsylvania; Philadelphia; PA; USA
| | - Melissa D. Sánchez
- Department of Pathobiology, School of Veterinary Medicine; University of Pennsylvania; Philadelphia; PA; USA
| | - Reema T. Patel
- Department of Pathobiology, School of Veterinary Medicine; University of Pennsylvania; Philadelphia; PA; USA
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Yasuno K, Takagi Y, Kobayashi R, Ohmuro T, Kamiie J, Sahara H, Shirota K. Mammary adenoma with sebaceous differentiation in a dog. J Vet Diagn Invest 2011; 23:832-5. [PMID: 21908334 DOI: 10.1177/1040638711406973] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The current report describes a complex canine mammary adenoma with a rare histological feature characterized by sebaceous differentiation of tumor cells. A 13-year-old, mixed-breed, intact female dog had mammary tumors on the right mammary chain. Histologically, one of the masses was composed of bilayered ductal structures with luminal epithelial cells together with basaloid or myoepithelial cell components. Within the tumor, there were a number of lobules and nests of large foamy cells associated with basaloid reserve-like cells similar to sebaceous gland. Squamous metaplasia was also seen within the tumor. Immunohistochemical staining indicated that the tumor cells with sebaceous differentiation were positive for cytokeratin (CK)14 and that the associated basaloid reserve-like cells were positive for p63. In contrast, other luminal epithelial tumor cells were positive for CK18 and CK19, but not for CK14 and p63. The myoepithelial cells were positive for α-smooth muscle actin and p63. The expression of p63 in both sebaceous basaloid reserve-like cells and myoepithelial cells, and their structural continuity within the tumor tissue, suggested a common origin of these 2 components.
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Affiliation(s)
- Kyohei Yasuno
- Research Institute of Biosciences, School of Veterinary Medicine, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
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Sakuma A, Nishiyama S, Yasuno K, Ohmuro T, Kamiie J, Shirota K. A case of canine cutaneous clear cell adnexal carcinoma with prominent expression of smooth muscle actin. J Toxicol Pathol 2010; 23:265-9. [PMID: 22272037 PMCID: PMC3234631 DOI: 10.1293/tox.23.265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Accepted: 09/07/2010] [Indexed: 11/23/2022] Open
Abstract
Cutaneous clear cell adnexal carcinoma was found in the right lip of a
14-year-old male castrated Shih Tzu. Histologically, the tumor mostly
consisted of neoplastic cells with clear or vacuolated cytoplasms and
contained frequent tubular structures. Neoplastic cells showed coexpression
of pan-cytokeratin (CK) and vimentin by double-labeled immunofluorescence
staining. In addition, immunohistochemistry revealed that the tumor cells
were positive for pan-CK (AE1/AE3, KL1, CAM 5.2), CK-7, CK-8, CK-14, CK-15,
CK-18, vimentin and alpha-smooth muscle actin (SMA) with varied intensity
and positivity. Among these marker proteins, SMA was positive in 75% of the
tumor cells. On the other hand, CK-15, which is a specific marker of
follicular stem cells, was expressed in less than 1% of the tumor cells.
Based on these findings, the tumor showed diverse differentiation in
apocrine sweat glands and the inner and outer root sheaths of hair
follicles, indicating the follicular stem cell to be the origin of this
tumor.
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Affiliation(s)
- Akiko Sakuma
- Research Institute of Biosciences, School of Veterinary Medicine,
Azabu University, 1–17–71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa
252-5201, Japan
| | - Shoko Nishiyama
- Research Institute of Biosciences, School of Veterinary Medicine,
Azabu University, 1–17–71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa
252-5201, Japan
| | - Kyohei Yasuno
- Research Institute of Biosciences, School of Veterinary Medicine,
Azabu University, 1–17–71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa
252-5201, Japan
| | - Tamio Ohmuro
- Ohmuro Veterinary Clinic, 4262-2 Koyamacho, Machida, Tokyo
194-0212, Japan
| | - Junichi Kamiie
- Laboratory of Veterinary Pathology, School of Veterinary
Medicine, Azabu University, 1–17–71 Fuchinobe, Chuo-ku, Sagamihara,
Kanagawa 252-5201, Japan
| | - Kinji Shirota
- Research Institute of Biosciences, School of Veterinary Medicine,
Azabu University, 1–17–71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa
252-5201, Japan
- Laboratory of Veterinary Pathology, School of Veterinary
Medicine, Azabu University, 1–17–71 Fuchinobe, Chuo-ku, Sagamihara,
Kanagawa 252-5201, Japan
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