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PubMed1990

Tumoral calcinosis: a study of cases from Papua New Guinea.

Forty-eight cases of tumoral calcinosis were recorded in surgical pathology material, Port Moresby General Hospital, Papua New Guinea during the period from 1981 to 1985. The lesions were most common in the fifth decade of life and the female to male ratio was 2:1. The hip region and the greater trochanter were the common sites involved and this observation supports the possible aetiological relationship of tumoral calcinosis to trauma resulting in pressure ischaemia. In this series, from a country in which the condition is well known, only 35.8% were correctly diagnosed preoperatively. With a knowledge of its clinicopathological features, it should be possible for most cases to be diagnosed preoperatively.

Adolescent↗

PubMed1990

Calcinosis circumscripta of the metacarpal pad in a dog.

Calcinosis circumscripta was found in the metacarpal pad of an otherwise healthy young German Shepherd Dog. The lesion caused progressive lameness. Incomplete surgical excision alleviated pain, while preserving a functional metacarpal pad. There were no clinical or laboratory data to indicate impaired renal function in this dog. Five months after surgery, the lameness had not returned. Footpad calcinosis circumscripta has been previously described in older dogs with renal insufficiency.

Animals↗

PubMed1990

[Idiopathic calcinosis of the scrotum. Apropos of 2 cases].

The authors report two cases of idiopathic calcinosis of the scrotum studied between the years 1986-1987 at the Central Histology Laboratory of Hopital St-Louis. These patients had subcutaneous calcinosis strictly limited to the scrotum and not accompanied by any clinical signs or abnormal laboratory parameters. The macroscopic and histological appearance of the lesions is typical and should suggest the diagnosis. Numerous authors have tried to attribute a pathogenic interpretation to this lesion, but the various etiologies proposed are still purely hypothetical.

Adult↗

PubMed1990

Periarticular tumoral calcinosis and hypercalcemia in a hemodialysis patient without hyperparathyroidism: a case report.

We present a case of a 58-yr-old male to illustrate the scintigraphic, roentgenographic, clinical, and pathologic features of periarticular tumoral calcinosis that occurred in a hemodialysis patient. Soft-tissue calcifications developed 3 yr after onset of hemodialysis, became progressively larger during the ensuing five years, and culminated in voluntary withdrawal from dialysis because of the extreme discomfort and lack of mobility that resulted from the calcinosis. Histologically, an aplastic disorder was present with very low bone formation. On bone scintigraphy, intense calcium uptake in soft tissues implied that it was metabolically active. We hypothesize that this high metabolic activity contributed to the persistent hypercalcemia observed during the patient's last year of life.

Calcinosis↗

PubMed1990

Extensive calcinosis cutis with systemic lupus erythematosus.

Calcinosis cutis is a common clinical feature of dermatomyositis and scleroderma but is only rarely reported in association with systemic lupus erythematosus (SLE). We describe three patients with long-standing systemic lupus erythematosus in whom extensive calcinosis cutis developed. We identify characteristics our patients share in common with 23 previously described patients.

Adult↗

PubMed1990

[Tumoral calcinosis].

Tumoral calcinosis is a distinct entity, which is rarely seen in Europe and North America but much more common in black Africans. Typical symptoms are calcified nodules, which grow while remaining asymptomatic and are found in the tissues adjacent to the large joints of the body. Histologically there is collagen necrobiosis initially, which results in aggregates of densely calcified material. The aetiology is unknown, but the condition is probably a form of dystrophic calcification caused by mechanical injury. A patient with tumoral calcinosis is presented, and the clinical and histological findings are described.

Aged↗

PubMed1989

[Idiopathic calcinosis of the scrotum. Apropos of 2 cases].

The authors report two cases of idiopathic calcinosis of the scrotum studied between the years 1986-1987 at the Central Histology Laboratory of Hopital St-Louis. These cases presented subcutaneous calcinosis strictly limited to the scrotum and not accompanied by any clinical signs and no abnormal laboratory parameters. The macroscopic and histological appearance of the lesions is typical and should suggest the diagnosis. Numerous authors have tried to attribute a pathogenic interpretation to this lesion, but the various etiologies proposed are still purely hypothetical.

Adult↗

PubMed1989

[Visco-elastic characteristics of the aorta in conscious dogs in a model of experimental calcinosis].

Effects of experimental calcinosis induced by daily overdose of 500.000 IU Vit D3 during 10 days were studied in 6 mongrel conscious dogs chronically instrumented with intra-aortic Konigsberg microtransducer and two ultrasonic piezo-electric crystals diametrically opposed in the adventitia of the descending thoracic aorta. Simultaneous recording of instantaneous aortic pressure and diameter waves in basal state and during transient acute hypertension induced by intravenous angiotensin bolus (0.1 microgram/kg) allowed to obtain the pressure (y) diameter (x) relationship of the aorta according to an exponential regression: P = expo (beta D + A), with a highly significant correlation coefficient in all animals (r greater than 0.99). (table; see text) Anatomopathological studies of aortas revealed abnormal calcium deposition, ruptures of elastic fibers and disorganization of collagen. Thus, a striking decrease in aortic rigidity is observed after calcinosis in relation with structural changes of elastic materials and responsible in part for a reduction in pulsatile pressure; moreover this unexpected phenomena might represent an initiative process of development of aortic aneurysms.

Animals↗

PubMedDate not supplied

Tumoral calcinosis simulating osteomyelitis.

A case of tumoral calcinosis simulating osteomyelitis and associated with bunion formation in a 20-year-old female is presented. The most striking findings in this patient were the soft tissue calcifications. There was no evidence of any of the known causes of heterotopic calcifications. This kind of simulation between tumoral calcinosis bunion formation and osteomyelitis has not been previously described.

Adult↗

PubMed1989

Tumoral calcinosis. Case report with treatment failure.

Periarticular calcifications are the hallmark of a rare entity: tumoral calcinosis. We have followed for 90 months a nine-year-old black girl with involvement of both shoulders. Seven initial local excisions of the mass on the right shoulder were attempted without complete removal and prompt recurrence after each attempt. The entire lesion on the right side, including a cutaneous ulceration, was managed by en masse surgical excision. Preoperative inpatient medical management in the form of low calcium and low phosphorus diet was unsuccessful. Postoperatively, she has remained free of ulceration; however, after two and a half years, the right mass has again increased in size with compression of the brachial plexus. This recurrence occurred despite strict dietary control starting immediately postoperatively. Although there are many advocates of surgical excision of these lesions and, more recently, several cases reported of successful medical management, we find that often a combination approach is necessary to effectively treat tumoral calcinosis and reduce the rate of recurrence.

Calcinosis↗

PubMed1977

[Salivary calcinosis and the immunologic context].

On the strength of three new cases, it is suggested that the term "calcifying parotiditis" must be replaced by "salivary calcinosis". This suggestion is based on clinical and pathological grounds. An analysis of 11 cases of salivary calcinosis encountered in the last eight years points to clinical analogies between this condition and Gougerot-Sjögren's disease as well as to the fairly frequent involvement of the immune system in the calcinoses.

Adult↗

PubMed1989

[Present methods of inducing calcinosis and atherosclerosis and perspectives of pharmacologic prevention].

In the light potential preventive pharmacotherapy of experimental atherosclerosis, attention has been focused on the effect of some substances tested in models that may represent human atherosclerosis. Calcium antagonists of various chemical groups administered simultaneously prevent the accumulation of calcium in cells under conditions of experimental calcinosis and atherosclerosis, as e.g. in spontaneously hypertensive rats, in rabbits on cholesterol diet, at administration of high doses of vitamin D, and on using the cuff technique. The results indicate that substances involved in the metabolism of calcium affect basic pathogenic processes of calcinosis and atherosclerosis.

Animals↗

PubMed1989

Acute hyperparathyroidism with systemic calcinosis. Report of a case.

A patient with a huge mediastinal parathyroid adenoma had an acute hypercalcemic crisis. The patient exemplifies the many pitfalls in diagnosis and management of this unusual complication. Postoperatively the patient further developed severe calciphylaxis with calcinosis cutis and systemic and pulmonary calcinosis, a most rare condition.

Acute Disease↗

PubMed1988

[Calcinosis of the scrotum. Report of a case associated with epidermoid cysts].

Clinical and histological features of a case of the so-called idiopathic calcinosis of the scrotum in a 22 year-old otherwise healthy man are presented. In a first biopsy we did not observe any evidence of squamous epithelial lining around calcified masses, but in a second one we observed some intact epidermoid cysts and granulomas of foreign-body type around keratinous material. These findings suggest that scrotal calcinosis is not idiopathic, but rather the end stage of dystrophic calcification of scrotal epidermoid cysts.

Adult↗

PubMed1988

Tumoral calcinosis: case reports from Saudi Arabia with a review of the literature.

Tumoral calcinosis is a rare disease mainly reported among blacks, especially from the tropical and sub-tropical regions of Africa. Hitherto, no reports of this disease entity have been reported from North Africa and the Arab Peninsula. This paper is therefore the first documentation of tumoral calcinosis in nine patients from the Arabian Peninsula; seven of whom are Saudis and two Yemenis. Peculiar osseous and joint changes co-existed in one of the cases. Moreover, there was a high incidence in the feet, in 75% of cases. One of the lesions was quite extensive. Reason for these changes are suggested.

Adult↗

PubMed1987

[Idiopathic calcinosis of the scrotum: a case report].

A 25-year-old man complained of painless, firm scrotal nodules which increased in number and size for the last 7 years. Physical examination was unremarkable except for many, firm painless nodules near the scrotal raphe. Preoperative diagnosis was multiple scrotal tumors of unknown etiology. Surgical excision was performed under epidural anesthesia. On microscopic examination, the nodules were located in the dermis and composed of calcified material which was positive with the von Kossa calcium stain. There were numerous foreign giant cells and dense fibrosis at the margins of the lesions. Idiopathic calcinosis of the scrotum was the final diagnosis. Although its etiology is unknown, the literature reviewed supported the view that the mast cell accumulation and its degranulation are related to idiopathic calcinosis of the scrotum.

Adult↗

PubMed1987

Calcinosis cutis secondary to percutaneous penetration of calcium chloride in dogs.

Accidental exposure of the skin of a dog to a commercial hygroscopic landscaping product (77-80% CaCl2) caused contact-irritant dermatitis within 24 hours. Papules and eroded to ulcerated plaques with hyperproliferative margins developed on various areas of the skin that had come in contact with CaCl2. Histopathologic findings were typical of calcinosis cutis. Reproducible lesions similar to those observed on the referred dog were induced on 5 clinically normal dogs exposed to small amounts of the compound. Histopathologic documentation of the percutaneous penetration of CaCl2, with evidence of calcinosis cutis, was found in the dogs as early as 24 hours after continuous skin contact with the offending substance. Electron-microscopic evidence of crystalline deposits within dermal collagen also was found in skin biopsy specimens obtained 24 hours after contact with CaCl2. Serum calcium and phosphorus concentrations in the 5 dogs remained within normal limits before and after topical application of CaCl2.

Animals↗

PubMed1987

Calcinosis as the presenting sign of juvenile dermatomyositis in a 14-month-old boy.

We describe a 14-month-old child with dermatomyositis in whom calcinosis was the first sign of the disease. This case shows that calcinosis, usually a late complication of dermatomyositis, may be the presenting sign of the disease even in young children and when Gottron's sign is still absent and muscular weakness not prominent.

Calcinosis↗