Pigeon chest

Adult osteomalacia often has an insidious presentation. " " The underlying disorder may be more apparent than skeletal defects (e.g., diarrhea in sprue). Diffuse skeletal pain, bony tenderness, and proximal muscle weakness may occur. Pain on movement and muscle weakness may result in a characteristic waddling gait. Hypophosphatemia and secondary hyperparathyroidism may contribute to these symptoms. Tetany can result from sufficiently depressed serum ionized calcium. Skeletal deformities (infrequent in adults) include leg bowing, pigeon chest, scoliosis, kyphosis, and shortening of the spine. 

Comparative Biochemistry Energy-Generating Pathways in Birds One indication of the relative importance of various ATP-producing pathways is the Vmax of certain enzymes of these pathways. The values of Vmax of several enzymes from the pectoral muscles (chest muscles used for flying) of pigeon and pheasant are listed below. 

Perez-Padilla R, Gaxiola M, Salas J, et al. Bronchiolitis in chronic pigeon breeder s disease. Morphological evidence of a spectrum of small airway lesions in hypersensitivity pneumonitis induced by avian antigens. Chest 1996 110(2) 371-377. 

May JJ et al. (1990) Organic dust toxic syndrome a follow-up study. Am J Ind Med 17(1) 111-113 McCormick JR et al. (1981) Serum angiotensin-converting enzyme levels in patients with pigeon-breeder s disease. Chest 80(4) 431-433... 

Robinson TJ et al. (1981) Jejunal villous changes associated with farmer s lung. Postgrad Med J 57(673) 697-701 Rodriguez de Castro F et al. (1993) Relationships between characteristics of exposure to pigeon antigens. Clinical manifestations and humoral immune response. Chest 103(4) 1059-1063... 

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