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Biomedical subjects

M Hatoko

Publications and source records attributed to M Hatoko.

50 records · Page 3Linked to original sources
PubMed1993

Dermis-fat graft after parotidectomy to prevent Frey's syndrome and the concave deformity.

Dermis-fat grafts were performed on 7 patients at the time of parotidectomy to prevent Frey's syndrome and the characteristic concave deformity. Only 1 patient demonstrated postoperative Frey's syndrome, and 1 demonstrated a slightly concave deformity due to fat absorption. Although other barrier materials have been reported to achieve success in preventing gustatory sweating, our method simultaneously corrects the associated deformity of facial contour as well.

Adipose Tissue↗
PubMed1993

Carcinosarcoma of the skin: immunohistochemical and electron microscopic observations.

A rapidly growing, hemorrhagic, exophytic tumor on the upper back of a 44-year-old male patient was investigated. Histological, immunohistochemical, and electron microscopic studies revealed both basal cell carcinoma-like and spindle cell sarcoma-like structures intermingled in the same tumor. Clinical consequences to this patient were mainly dependent on the sarcomatous element.

Adult↗
PubMed1991

Reconstruction of two separated electrical burn ulcers.

In this study, we describe the reconstruction of composite tissue defects in two separated regions (left elbow and right thigh) using only one-sided rectus abdominis myocutaneous flap. We report here the results of our procedure, as it increases the usefulness of the rectus abdominis myocutaneous flap and can be applied to other clinical situations.

Adult↗
PubMed1990

Reconstruction of palate with radial forearm flap; a report of 3 cases.

A prosthesis is the preferred method for the closure of a palatal defect following maxillectomy, with fairly satisfactory results. However, some patients suffer from symptoms due to mismatch of the prosthesis. We have reconstructed palatal defects using radial forearm flaps in 3 cases. The forearm flap is utilised for palatal reconstruction in the double-folded form. The flap is thin and pliable, there are no problems in regard to bulk and drooping of the flap, and the patients can wear the denture with minimal discomfort. We believe that reconstruction of the palate with a forearm flap is a useful procedure, especially for patients suffering from symptoms due to mismatch of the prosthesis.

Female↗
PubMed1990

Reconstruction of penis with free deltoid flap.

Two cases of reconstruction of the penis with a free deltoid flap are described. The urethra was reconstructed with part of the flap and external coverage of the penis was provided with the remainder. In one case an autogenous rib cartilage graft was inserted in the reconstructed penis as a strut. Postoperatively both patients can urinate standing up, and for the one in which a rib cartilage graft was used sexual intercourse is possible. Both cases have good recovery of tactile and protective sensation in their reconstructed penis.

Adult↗
PubMed1990

Simultaneous reconstruction of cervical esophagus and oral cavity with one free jejunal graft.

A case of simultaneous reconstruction of the cervical esophagus and oral cavity with one free jejunal graft is described. A 36-year-old patient had suffered from stricture of the cervical esophagus after reconstruction with a deltopectoral flap and, at the same time, had developed cancer of the anterior floor of the mouth. Both defects were simultaneously reconstructed with one free jejunal graft pedicled on one pair of jejunal vessels. A segment of jejunum was divided into three portions leaving the mesenterium intact. The middle portion was discarded; one portion was used for cervical-esophageal reconstruction and the rest was split longitudinally and used for resurfacing the oral cavity.

Adult↗
PubMed1987

Systemic sclerosis-like lesions during long-term penicillamine therapy for Wilson's disease.

Systemic sclerosis-like lesions developed in a 14-year-old boy with Wilson's disease who had been treated with D-penicillamine for 11 years. Clinical and laboratory manifestations included proximal scleroderma, pulmonary restrictive defects, positive antinuclear antibodies, and the deposition of C3 at the dermal-epidermal junction of the lesional skin. This is the first case reported in which long-term administration of penicillamine was followed by the development of systemic sclerosis-like lesions.

Adolescent↗
PubMedDate not supplied

Lip reconstruction of comparatively large defect including the commissure using remaining lip tissue: a modification of reconstructed method.

We present two reconstructed cases after malignant skin tumor of comparatively large defects of lip including the commissure using remaining lip tissue alone. After resecting a tumor including wedge-shaped full-thickness lip tissue, a full thickness oblique incision is made at the site 5 mm distant from the contralateral commissure. The rhomboid-shaped lower lip flap is created, transposed to the defect, and sutured with the defect margin, including the upper lip, to reconstruct the commissure. The cross lip flap is created at the contralateral side of the lower lip, 5 mm from the commissure, and the defect is closed with the crosslip flap. Although our method is applicable only to selected cases, we believe that it is useful in terms of maintaining symmetry of the lip and function of the commissure in the reconstruction of comparatively large defects including the commissure.

Aged↗
PubMedDate not supplied

A case of human adjuvant disease after augmentation rhinoplasty.

Human adjuvant disease (HAD) is an autoimmune syndrome which is caused by prolonged hypersensitization of injected foreign materials. Usually, this occurs after mammary augmentation with foreign materials. We report a rare case of HAD after rhinoplasty with silicone injection. Thirty years ago, the patient underwent augmentation rhinoplasty with silicone injection. We removed the silicone and grafted the area with fascia lata. After the operation, local and systemic symptoms improved.

Adult↗
PubMedDate not supplied

Correction of a posttraumatic nasal deformity using a hard palate mucosa graft.

We report corrected cases of posttraumatic nasal deformity using a hard palate mucosal graft as covering material of the inner-side defect. In all cases, the deformity was corrected satisfactorily. The nasal cavity was preserved, and because of the stiffness of the grafted mucosa, it did not collapse in the course of breathing. In all cases, the palate donor site healed in approximately 2 weeks, and after healing, none of the patients complained of irritation or ulceration. These results indicate that hard palate mucosa is also applicable in the correction of a traumatic deformity of the nose as an alternative to the auricular composite graft equally in the case of a nontraumatic deformity.

Adult↗
PubMedDate not supplied

The pedicled extended serratus anterior myocutaneous flap for head and neck reconstruction.

A new "extended" myocutaneous flap has been designed by fasciocutaneous extension anteriorly and inferiorly from the 6th to 8th slips of the serratus anterior muscle. This flap has been used as a pedicled flap for various types of head and neck reconstructions and satisfactory results obtained. This article describes the anatomy of the flap, surgical technique and typical cases.

Adult↗
PubMedDate not supplied

Localization and expression of R-cadherin in skeletal muscle following nerve injury.

Rats in which the sciatic nerves were cut were divided into two groups: animals with nerve sutured and animals with nerve not sutured. In the unsutured group, the levels of R-cadherin expression increased and then decreased to values lower than those of controls. In the sutured group, the levels of R-cadherin expression increased and then decreased to almost control values. These results suggest that R-cadherin plays some role in cells of normal and regenerating muscles.

Animals↗