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Biomedical subjects

Paulo de Tarso P Pierre-Filho

Publications and source records attributed to Paulo de Tarso P Pierre-Filho.

6 recordsLinked to original sources

Adult blindness secondary to vitamin A deficiency associated with an eating disorder.

OBJECTIVE: We examined an adult patient who lost one eye due to severe keratomalacia secondary to self-induced vitamin A deficiency. METHODS: This case report provides a clinical, ophthalmologic, and laboratory description in addition to a review of the medical literature. RESULTS: A 33-y-old woman with a 17-y history of an eating disorder presented with bilateral conjunctival xerosis, an infected corneal ulcer in the right eye and a large descemetocele in the left eye. Laboratory and clinical findings were consistent with vitamin A deficiency. Despite a tectonic penetrating keratoplasty, her left eye perforated and had to be eviscerated. In parallel, vitamin A replacement improved her clinical status and the ocular findings in her right eye. CONCLUSIONS: The present report indicates that vitamin A deficiency secondary to eating disorders should be considered in the differential diagnosis of patients with severe dry eye and corneal ulceration.

Adult↗

Conjunctival keratoacanthoma.

Keratoacanthoma generally occurs on the skin; it is rarely found in the conjunctiva. A case of a 34-year-old woman with a rapidly growing conjunctival mass is reported. The tumor was excised with a safety margin to exclude squamous cell carcinoma. Histopathologically it was crateriform and consistent with atypical keratoacanthoma. There has been no recurrence in 2 years of follow-up. Conjunctival keratoacanthoma is rare; differential diagnosis of conventional squamous cell carcinoma and keratoacanthoma can be difficult. We recommend complete surgical excision and careful follow-up of crateriform squamous proliferations.

Adult↗

Morning glory syndrome associated with posterior pituitary ectopia and hypopituitarism.

PURPOSE: To report a patient with morning glory syndrome in combination with posterior pituitary ectopia and to emphasize the need for early recognition of this syndrome as an important step towards the diagnosis and treatment of the systemic anomalies that may be associated with it. METHODS: We present a 7-year-old boy who showed short stature, nystagmus, inward deviation and low vision. Ophthalmological and general physical examinations, further endocrine evaluation and magnetic resonance imaging (MRI) of the brain and sella turcica were performed. RESULTS: Both fundi showed symptoms of morning glory syndrome. The discs were pink and deeply excavated, and were surrounded by a ring of chorioretinal pigmentary disturbance. Magnetic resonance imaging revealed the absence of the infundibulum and posterior pituitary ectopia. Growth hormone studies confirmed the diagnosis of growth hormone deficiency. Therapy with recombinant human growth hormone was initiated. CONCLUSIONS: Although most cases of morning glory syndrome occur as isolated ocular abnormalities, it may occur in association with systemic anomalies, including posterior pituitary ectopia and hypopituitarism. A complete general physical examination and growth evaluation is important for early detection and treatment, resulting in benefit for these patients.

Abnormalities, Multiple↗

Upper eyelid oedema in Melkersson-Rosenthal syndrome.

Melkersson-Rosenthal syndrome is an uncommon disorder of uncertain aetiology characterized by orofacial oedema, facial nerve palsy and lingua plicata. The triad is seldom seen in its complete form, and oligo-symptomatic or mono-symptomatic forms are more common. An unusual case of Melkersson-Rosenthal syndrome involving the left upper eyelid is presented. The pathology, clinical features and management of this disorder are discussed.

Biopsy↗

Endophthalmitis caused by Agrobacterium radiobacter.

Infections due to Agrobacterium radiobacter are rare. This study reports 2 cases of A. radiobacter endophthalmitis. To the authors' knowledge, these are only the second and third reported cases of endophthalmitis caused by this Gram-negative rod.

Anti-Bacterial Agents↗