Mummified cutaneous mixed tumor

Tsoitis, G.

doi:10.1001/archderm.111.2.194

Cited by 20 publications

(12 citation statements)

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“…Tsoitis et al (9) also described a case of apocrine-type CMT with hair matrix differentiation and ossification. Thus, all of the reported cases of CMT with hair matrix differentiation (5,9,10), including the present case, demonstrated keratinous cystic structures, apocrine-type sweat gland structures, and strands of basaloid cells showing partial hair germ-like structures. Therefore, apocrine-type CMT appears to be related to the folliculo-sebaceous apocrine unit.…”

Section: Discussionsupporting

confidence: 60%

“…It is rarely demonstrated, however, in follicular cyst, pilar cyst in Gardner's syndrome (3)(4)(5), pilomatrical carcinomas (6,7), or keratoacanthoma (8). In addition, sweat duct apparatus tumors, such as CTM (9)(10)(11) and adnexal carcinoma (12) rarely demonstrate hair matrix differentiation. However, histogenesis of hair matrix differentiation in CMT is not known.…”

Section: Discussionmentioning

confidence: 99%

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Cutaneous Mixed Tumor Containing Ossification, Hair Matrix, and Sebaceous Ductal Differentiation

Akasaka

Onodera

Matsuta

1997

The Journal of Dermatology

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A 58-year-old Japanese male presented with a cutaneous mixed tumor containing ossification and hair matrix differentiation on the left side of the chin. Histologically, the tumor consisted almost exclusively of apocrine-type epithelial ductal structures and chondroid stroma. Strands and aggregation of basaloid cells which contained keratinous cystic structures with a column of shadow cells arising from basophilic basaloid cells, sebaceous duct-like structures, and ossification in the stroma were also evident. These findings suggest that cutaneous mixed tumors with ossification and hair matrix differentiation are related to both the whole hair follicle and the sweat apparatus.

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Section: Discussionsupporting

confidence: 60%

Section: Discussionmentioning

confidence: 99%

Cutaneous Mixed Tumor Containing Ossification, Hair Matrix, and Sebaceous Ductal Differentiation

Akasaka

Onodera

Matsuta

1997

The Journal of Dermatology

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“…Pilomatricoma is a benign, sometimes cystic tumor showing differentiation toward the hair matrix. Pilomatricoma-like features have been reported in several other settings, such as follicular cysts (7-10), benign adnexal tumors (11,12), adnexal carcinoma (pilomatricomal carcinomas) (13,14), and keratoacanthoma (15). Its distinctive appearance has also been noted in several cases with Gardner's syndrome (7-9).…”

Section: Discussionmentioning

confidence: 99%

An Unusual Hybrid Cyst in Gardner's Syndrome with Partial Differentiation toward the Inner Root Sheath

Narisawa

Kohda

1989

The Journal of Dermatology

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A 26-year-old man with Gardner's syndrome had numerous subcutaneous nodules over almost his entire body. Histologically, one of them revealed an unusual so-called hybrid cyst composed of epidermal type keratinization and inner root sheath type keratinization. The histologic findings and the possibility of cutaneous cysts based on hair matrix differentiation, more specifically partial differentiation toward the inner root sheath, are discussed.

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“…Cepen dant la présence de cellules momifiées n'est pas l'apanage exclusif de cette tumeur, car elle a été observée dans diverses lésions: kys tes épidermiques [9,10,12,13], tumeurs mixtes [3,7,15], kératoacanthome [11], fol licules pileux enflammés [4], L'élément pro pre à l'ECM est représenté par les cellules basophiles, cellules pilaires immatures dis posées à la périphérie de la tumeur.…”

Section: Discussionunclassified