Biomedical subjects

C Rank

Publications and source records attributed to C Rank.

3 recordsLinked to original sources

PubMed1996

[Microcystic adnexal carcinoma of the skin. An underestimated tumor].

Microcystic adnexal carcinoma is a rare semimalignant cutaneous neoplasm characterised by slow but locally aggressive growth. Its histogenesis and nomenclature are still a subject of controversy. Under-recognition and the tumor's bland cytologic features lead to frequent misdiagnoses. In addition, subclinical tumour invasion explains the high incidence of local recurrence. Thus, the tumour makes great demands on the planning of its surgical removal. We report the case of an 81-year-old woman with a microcystic adnexal carcinoma of the lower lip, which was treated by micrographic surgery. On the basis of this case, differential diagnoses, histogenesis and micrographic surgery as the treatment of choice are discussed.

Aged↗

PubMed1995

[Bullous pemphigoid simulation subacute simple prurigo].

Bullous pemphigoid (BP) is a bullous autoimmune disease of the elderly; it is characterized by tense bullae on both erythematous and otherwise apparently normal skin. Several clinical variants of BP have been described, and we now add our observations of two BP cases mimicking subacute prurigo. Both patients had suffered from intensely pruritic excoriated papules for several months before presentation. Blisters had never developed and did not occur during follow up. Histology showed changes of chronic dermatitis. In the serum of both patients, indirect immunofluorescence on NaCl-separated human skin revealed the presence of circulating antibodies binding to the roof of the artificial blisters. Perilesional skin biopsies showed linear IgG or C3-deposits in the basement membrane zone. Immunoblotting of epidermal and dermal extracts demonstrated the binding of the antibodies to an epidermal 230-kD protein, which is the known major bullous pemphigoid antigen. These cases are described as a basis for discussion of the clinical spectrum of bullous pemphigoid.

Acute Disease↗

PubMedDate not supplied

Phaeohyphomycosis caused by Exophiala jeanselmei treated with itraconazole.

Phaeohyphomycotic cysts developed on the right knee of a 72-year-old woman undergoing immunosuppressive treatment for ulcerative colitis 6 years after accidental inoculation of soil in a bicycle accident. The lesions were red, firm, slightly raised, 0.5-1 cm in size and completely asymptomatic. The diagnosis was made by histopathological examination of three excised cysts and by repeated isolation of Exophiala jeanselmei in pure culture. The excised cyst walls contained large numbers of dematiaceous fungal elements in the form of hyphae, yeast-like cells and some cells dividing internally by a transverse septum. The patient was treated with 200 mg of itraconazole daily, but the treatment had to be stopped because of severe side-effects after 6 weeks. Histologically the cysts were cleared of dematiaceous elements, but E. jeanselmei could still be isolated from one of two skin biopsies 1 month after the end of therapy.

Aged↗