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Biomedical subjects

I S Jones

Publications and source records attributed to I S Jones.

At least 37 records · Page 2Linked to original sources

Ocular and oculodermal melanocytosis associated with uveal melanoma.

Fifteen patients with ocular or oculodermal melanocytosis were found after reviewing 1210 cases of histologically proven uveal melanomas. The melanoma in each of these patients developed in the eye affected with ocular or oculodermal melanocytosis and not in the unaffected eye. In the one case of bilateral involvement with oculodermal melanocytosis, the patient developed the melanoma in the eye more affected with melanocytosis. In the only case of partial ocular melanocytosis, the melanoma developed in a sector of the eye affected with melanocytosis. A comparison of the prevalence of ocular or oculodermal melanocytosis in patients with uveal melanoma with the prevalence of ocular or oculodermal melanocytosis in the general population, implies that there is an increased incidence of uveal melanomas in patients with ocular or oculodermal melanocytosis.

Adolescent↗

Aneurysmal bone cyst of the orbit: a review.

An aneurysmal bone cyst involving the orbital roof in a 12-year-old girl is discussed. Other reported cases of this highly unusual non-neoplastic bony lesion affecting primarily adolescents and young adults are reviewed. Similarities and differences between orbital aneurysmal bone cysts and those affecting the long bones and spine are also discussed.

Bone Cysts↗

Endodermal sinus tumour of the ovary: the place of alphafetoprotein detection, surgery and chemotherapy.

New developments in the management of the rare endodermal sinus tumour of the ovary, together with the reporting of 2 additional patients, are presented. There is a need for accurate clinical and pathological evaluation of the disease. As shown in the present study, histochemical staining for alphafetoprotein (AFP) provides an additional factor in diagnosis, and monitoring of AFP levels in serum is a useful guide to treatment. The prognosis, previously uniformly poor, appears to be improved with the use of multidrug chemotherapy. In a collated series of 98 patients, the 24-month survival rate was 65% in Stage I disease and 67% in Stage II disease. However, the choice of effective drugs remains uncertain. The improved survival of young patients with aggressive chemotherapy has now raised the question of preservation of fertility at the time of surgery. In a small collated series of 26 patients with Stage I disease, survival to 36 months was not jeopardized by the conservative removal of one tube and ovary.

Adult↗

Evaluation of ovarian cancer by second-look laparotomy after treatment.

In the five-year period 1975 to 1979, 234 patients entered the Royal Brisbane Hospital Consultative Ovarian Cancer Clinic's management programme. Thirty-six patients were considered suitable for evaluation by a subsequent laparotomy following completion of the treatment programme. The clinic's protocol for second-look surgery and its results are presented. The findings from the protocol-based surgery were accurate in 23 of 24 patients (96%) on the basis of subsequent follow-up, and surgery was free of complications in 33 of 36 patients (92%). The objectives of management are reviewed, and a recommendation about the timing of surgery is made. In all cases there must be individualization of treatment.

Female↗

Medium-dose methrotrexate/folinic acid regimen in the chemotherapy of gestational trophoblastic disease.

Under the aegis of the Queensland Trophoblastic Tumour Registry, a screening and monitoring programme with the beta-subunit of chorionic gonadotrophin as a marker was adopted in the management of patients with gestational trophoblastic disease. Twenty-six patients had been treated with pulses of methotrexate, followed by folinic acid rescue, up to a total dose of 200 mg of methotrexate in each course; the side effects were minor and infrequent. This regimen was effective in producing biochemical and clinical remission in 18 of 19 patients both with non-metastatic and with metastatic persistent disease; the mean duration of treatment was nine weeks and 19.2 weeks respectively. However, it was effective in only three of seven patients with histologically confirmed choriocarcinoma, which suggests that a more aggressive multidrug regimen should be considered from the outset in this high risk group of patients. Our preliminary data have revealed no permanent effects on subsequent fertility or observable effects on the babies so far studied.

Choriocarcinoma↗

Ectopic vaginal trophoblast in association with a partial mole.

A case of ectopic vaginal trophoblast in association with a blighted ovum showing hydropic degeneration is presented. This combination satisfied the histological criteria of Szulman and Surti for inclusion as a partial mole. Subsequent follow-up revealed non-progression of the condition. The problems of obtaining a satisfactory classification for proliferative trophoblastic lesions are outlined.

Adult↗

An assessment of vulval pigmentation.

Thirty-five vulvectomy specimens were obtained from post-mortem material and studied to assess the distribution of melanin pigment. The information obtained was compared with the melanin distribution in melanoma-in-situ and melanosis vulvae. A lesion had to be larger than 3mm before it was recognised clinically. Melanosis vulvae is but an exaggeration of the normal distribution of melanin pigment. Melanoma-in-situ, however, cannot be reliably distinguished from the benign causes of pigmentation on clinical grounds. The correct diagnosis can only be made histologically. Other causes of vulval pigmentation are also discussed.

Aged↗

Orbitofacial angiomatosis.

Two patients with orbital vascular malformation ipsilateral facial nevus flammeus were studied. The literature contains one similar case that interestingly shares with our cases the lack of leptomeningeal angiomatosis. Orbitofacial angiomatosis seems to be a distinct entity from meningofacial angiomatosis because of its true vascular malformation of the orbit.

Angiomatosis↗

Benign epithelioid cell nevi of the iris.

Two benign acquired melanocytic lesions of the iris stroma had distinctive clinical and pathologic features. One tumor was loculated and polypoid, suggesting ectopic glandular tissue, while the other was a flat tumor with a rich surface capillarity. Both lesions histologically were composed of mononucleated, binucleated, and multinucleated hypopigmented epithelioid and elongated "myoid" cells, widely separated in a finely fibrillar eosinophilic stroma. The ultrastructural features of one case included hyperconvoluted nuclei, conspicuous cytoplasmic filaments are rare, filamentary-striated (leptomeric) structures, scant organelles and inclusions except for numerous mitochondria and glycogen granules, small and infrequent melanosomes, and a fibrillary extracellular matrix focally organized into banded basement membrane material.

Adult↗

Capillary hemangioma of the lids and orbit: an analysis of the clinical features and therapeutic results in 101 cases.

The clinical records of 101 patients (biopsies done on 48) with capillary hemangiomas of the orbit, orbit and lids, and lids were analyzed. Lesions predominated in females and typically appeared at birth or within the first two months of life. The superior orbit and lids were definite sites of predilection. Telltale periocular cutaneous involvement occurred in one third of the cases. Pure proptosis caused by a deep orbital tumor without an anterior component was found in seven cases. Proptosis in general was mild, but in two cases was severe enough to cause corneal exposure. Findings suprortive of a diagnosis of an orbital or periorbital hemangioma include (1) change in tumor size on crying (46%); (2) a dark vascular coloration to the subcutaneous tissue (80%); and (3) the existence of nonperiocular strawberry marks (25). Diagnostic tests of most value were plain radiography, ultrasonography, computed axial tomography, and arteriography. The complication rate in the 50 patients followed up over five years was 80% (60% with amblyopia). Present treatment modalities do not appear to be achieving the desired goals of a good cosmetic and functional outcome. Radiotherapy and corticosteroids are both effective in individual cases, but many lesions are resistant to all forms of present treatment. Amblyopia therapy is difficult and often unsuccessful in these patients.

Age Factors↗

Pulsating metastatic tumor of the orbit.

A 47-year-old white man in apparent good health had diplopia and swelling of the right upper eyelid. Ocular examination showed proptosis of the right eye, together with a large, pulsatile, collapsible mass simulating a vascular neoplasm and involving the right temple as well as the right upper outer quadrant of the orbit. Biopsy of the orbital tumor disclosed a clear-cell carcinoma compatible with a renal primary tumor; subsequent laboratory examination revealed the offending tumor in the left kidney. Renal carcinomas may metastasize to the globe or to the orbit before the primary tumor is recognized. Pulsatile exophthalmos acquired in middle life associated with significant bone destruction represents a constellation of findings most consistent with a metastatic tumor, probably renal carcinoma, caused by the exceedingly rich vascularization of these metastatic deposits.

Adenocarcinoma↗

An assessment of vulval lichen sclerosus.

Vulval lichen sclerosus (L.S.) has been assessed clinically, colposcopically, and histologically to ascertain the suitability of including this condition in the nomenclature proposed by the International Society for the Study of Vulval Disease (I.S.S.V.D). In many cases the macroscopic appearance of lichen sclerosus is characteristic, but this is not always the case. Histologically, the appearances of the dermal hyaline change, the reduction in the length and the number of rete pegs, to a lesser extent thinning of the dermis and sometimes thinning of the epidermis are characteristics. The presence of dermal inflammatory cells and changes in the thickness of the keratin layer are, however, much more variable. Exact measurements of the various layers of the vulval skin are not necessary in the routine assessment of lichen sclerosus. The present study justifies the inclusion of lichen sclerosus on histological criteria in the I.S.S.V.D.'s nomenclature.

Female↗

Ovarian teratoma with peritoneal gliomatosis.

The case report describes the clinical and pathological features of a young girl with ovarian teratoma which showed a predominance of neural tissue. The peritoneal involvement by an admixture of mature and immature glial tissue resulted in the death of the patient despite surgery and cytotoxic chemotherapy. There was an association between this tumour and the presence of carcinoembryonic antigen and alphafetoprotein in the serum and ascitic fluid.

Adolescent↗