• 제목/요약/키워드: Cutaneous surgery

검색결과 312건 처리시간 0.028초

폐암환자의 Dinitrochlorobenzene (DNCB) 접촉성 감작에 대한 고찰 (The Evaluation of Dinitrochlorobenzene Contact Sensitization in Patients with Bronchogenic Carcinoma)

  • 조건현;이홍균
    • Journal of Chest Surgery
    • /
    • 제12권1호
    • /
    • pp.16-22
    • /
    • 1979
  • Clinical evaluation of contact sensitization to 2, 4-dinitro-chlorobenzene [DNCB] was performed in 2 groups: group A [30 patients with non-malignant disease] and group B [30 patients with bronchogenic carcinoma]. Initial sensitization was elicited out by applying 2, 000 ug of DNCB to skin surface of the both group A and B. Subsequently a relatively weak challenge dose, 200 ug of DNCB, was applied 14 days later, showing the satisfactory results of sensitization with minimizing non-specific irritative inflammatory skin response. Delayed cutaneous hypersensitivity reactions shown by spontaneous flare phenomena appeared at the challenge site, and they were assessed 48 hours later. The reaction were graded from +1 to +4 according to the degree of flare or vesicular reaction. The results were as follows: 1. 28 cases [93%] of group A, however, only 18 cases [67%] of group B exhibited delayed cutaneous hypersensitivity reaction to DNCB contact sensitization [P<0.02]. 2. Of group A, the delayed cutaneous hypersensitivity reactions above +2 of DNCB score were 25 cases [83%], meanwhile 11 cases [37%] in group B [P<0.001]. 3. Undifferentiated carcinomas showed highest incidence of anergy to DNCB contact sensitization in the all histologic types of group B. 4. In group B, 8 [42%] of 19 cases who react to DNCB were resectable, whereas only 2 [18 %] of 11 cases who failed to react to DNCB were resectable for curative cancer surgery. These study suggests that cellular immune reaction of group B was depressed remarkably comparing with that of group A.

  • PDF

비골 동맥 천공지 피판의 혈관 해부학 (Vascular Anatomy of Peroneal Perforator Flap)

  • 정덕환;한정수;황준성
    • Archives of Reconstructive Microsurgery
    • /
    • 제13권1호
    • /
    • pp.36-42
    • /
    • 2004
  • Materials and Methods: We studied 50 cases of peroneal perforating branch about branching pattern, course, length of vascular pedicle, and perforating level of the perforating cutaneous branches from Oct. 1985 to November 2003 by doppler flow meter and intraoperative findings. Results: 1) The perforating cutaneous branches were classified into four types, the Straight Branch (27cases), the Proximal Oblique Branch (11cases), the Branch from Muscular Artery (10cases), the Distal Oblique Branch(2 cases) respectively. The most common patten was Straight Branch, that was 54%. 2) There were 3 pathways of these branches, the most common one passed between the Soleus and Peroneus muscles(34 cases, 68%) 3) The length of vascular pedicle in Buoy Flap was variable from from 3 cm to 15 cm, but 32 cases(64%) were distributed between 5 cm and 6 cm. 4) The perforating level of branches were 5.9 cm in average from fibular neck to subcutaneous perforator artery 5) Peroneal Buoy Flap in possible to reconstruct both seperated bone and skin defect in some distance by One-Stage Operation and we can harvest maximal $8{\times}16cm$ sized flap in one perforating artery. If we include more two perforating artery, we get more wide flap which can cover large defect.

  • PDF

두피에 발생한 혈관육종의 수술시 Mapping Biopsy의 유용성 (Surgical Treatment of Cutaneous Angiosarcoma of Scalp:Usefulness of Preoperative Mapping Biopsies)

  • 강민구;박종림;김명국;민경원;고경석;장학
    • 대한두경부종양학회지
    • /
    • 제23권1호
    • /
    • pp.37-40
    • /
    • 2007
  • Objectives:Cutaneous angiosarcoma is an infrequent but aggressive neoplasm involving the skin of the face and scalp. Unfamiliarity with the clinical manifestations of cutaneous angiosarcoma frequently leads to misdiagnosis and delay in treatment. Complete surgical resection requires the performance of preoperative staging biopsies to determine the true extent of the neoplasm. Intraoperative frozen section analysis to determine the adequacy of the surgical resection is unreliable due to the high false negative rate. Material and Methods:In five scalp angiosarcoma cases, mapping biopsies were performed at far from the suspected edge of the neoplasm. On permanent pathology, we obtained tumor free margin with occasional focal involvement of the tumor. Results:Frozen-section analysis of the resected margins is inconclusive, for the subtle diagnostic features of angiosarcoma are distorted by the tissue processing required for frozen-section analysis. The characteristic dermal vessels lined by their malignant cells are collapsed by the freezing process. This results in a high rate of false-negative reports and possibly leads to incomplete resection of the neoplasm. Conclusion:Our recommendation is to establish the margins of the tumor by performing preoperative evaluations by mapping biopsies.

Cutaneous asthenia (Ehlers-Danlos syndrome) in a Korean short-haired cat

  • Seo, Sang-Hyuk;Choi, Miru;Hyun, Changbaig
    • 대한수의학회지
    • /
    • 제56권1호
    • /
    • pp.53-55
    • /
    • 2016
  • A 1-year-old Korean domestic short-haired cat presented with skin hyperextensibility and a severely macerated wound on the skin of the dorsal part of the neck. Diagnostic studies including histopathology and skin extensibility index revealed congenital cutaneous asthenia (Ehlers-Danlos syndrome). In this cat, the skin wounds and defects were successfully managed with standard wound management and cosmetic surgery. Although skin hyperextensibility is persistent, the cat has lived well without other complications to date. To the best of our knowledge, this is the first report of cutaneous asthenia in a cat in Korea.

외음부에 발생한 원발성 피부 선상 낭종성 암의 치험례 (A Case of Primary Cutaneous Adenoid Cystic Carcinoma at the Genital Area)

  • 정회준;손대구;권선영
    • Archives of Plastic Surgery
    • /
    • 제35권3호
    • /
    • pp.333-336
    • /
    • 2008
  • Purpose: Adenoid cystic carcinoma is a rare type of eccrine sweat gland carcinoma. Although it is mostly known as a neoplasm of the salivary gland, it could occur as a primary skin tumor. We present a patient with a primary cutaneous adenoid cystic carcinoma at the genital area. Methods: A 60-year-old man had a slowly growing 1 cm sized single tender mass near the left scrotum and he underwent excisional biopsy at a local clinic. A diagnosis of adenoid cystic carcinoma was made and thus he was transferred to our hospital. In physical examination, other specific findings were not detected except a linear scar caused by a previous skin biopsy near the left scrotum. In CT scan, PET-CT scan and endoscopy, there was no evidence of neoplasm in other organs. It was diagnosed as the primary cutaneous adenoid cystic carcinoma and then wide excisions were performed including total 4.5 cm margin of normal skin. Results: Microscopic findings revealed proliferation of tumor cell islands with cribriform or tubular patterns containing several round, pseudocystic structures. The tumor cells showed basaloid cells with uniform and small nuclei. Tumor cells infiltrated into the dermis and upper portion of subcutaneous tissue. There was multifocal perineural invasion of tumor cells. In postoperative 6 months, we found no recurrence and other complications. Conclusion: Herein we found a rare case of primary cutaneous adenoid cystic carcinoma at the genital area.

각질가시세포종에서 유래한 편평상피암의 치험례 (Clinical Experience of Cutaneous Squamous Cell Carcinoma Arising in Keratoacanthoma)

  • 신승준;박동하
    • Archives of Plastic Surgery
    • /
    • 제33권4호
    • /
    • pp.506-509
    • /
    • 2006
  • Purpose: The cutaneous squamous cell carcinoma is the second most common skin malignancy. It is noted that keratoacanthoma is difficult to differentiate from squamous cell carcinoma, clinically or historically. It is still a hypothetical question whether keratoacanthoma is a pseudomalignancy or a form of squamous cell carcinoma. Methods: We report the case of squamous cell carcinoma around left ala of nose in a 64-year-old female patient. Through an incisional biopsy, the mass was found to be keratoacanthoma in the pathologic report. An excisional biopsy was performed. Results: Pathologic report notified that it was found well-differentiated squamous cell carcinoma arising in keratoacanthoma with focal involvement of deep resection margin. Wide excision was made with 0.5-1.5 cm margin and immediate reconstruction was performed. Conclusion: The relationship between keratoacanthoma and squamous cell carcinoma has been debated in the treatment. It is still controversial whether to excise it or not. We concluded that kerathoacanthoma must be removed completely.

두정부 두피에 발생한 소낭 누두 기원 종양 1예 (A Case of Tumor of Follicular Infundibulum in Parietal Scalp)

  • 엄정환;김순흠;조동인
    • 대한두경부종양학회지
    • /
    • 제37권2호
    • /
    • pp.57-60
    • /
    • 2021
  • Tumor of follicular infundibulum (TFI) is a rare benign cutaneous appendage tumor that does not have characteristic clinical features. It is mainly present in the head, neck, and trunk as a solitary lesion. In particular, TFI typically manifests as a plate-like proliferation with multiple thin epidermal connections comprise of monomorphic cells. TFI do not represent cutaneous characteristics, but have clinical significance because TFI is associated with basal cell carcinoma and Cowden's syndrome. We report a case of TFI in parietal scalp with a review of literatures.