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Morphological and immunohistochemical studies of the pituitary in Sudden Infant Death Syndrome (SIDS)

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Summary

The morphological structure and immunohistochemical reactions of 100 pituitaries from cases of SIDS children (58 males and 42 females, average age 5.34 ±3.12 months) were studied. Controls consisted of 19 pituitaries from children (14 males and 5 females, average age 5.63 ± 2.52 months) with a clearly identifiable cause of death e.g. drowning or strangulation. The microscopical and immunohistochemical studies for identifying pituitary cell types revealed normally developed organs. Unspecific necroses and haemorrhages were observed in 2 cases of SIDS but in none of the controls. Hyperaemia was detected in 51 (30 male/21 female) cases of SIDS. No significant differences were found in the distribution of microfollicles (54%), cysts of the intermediate zone (14%), persistency of the Ratlike's pouch (44%), Erdheim's squamous epithelium (8%) or heterotopic salivary glands (3%). The semiquantitative immunohistochemical evaluations of the different cell types showed no significant variations from the control group. The pattern of distribution of the intracytoplasmic vacuolisations of the ACTH and gonadotropic cells showed no significant differences. Folliculo-stellate cells were either not demonstrable — commensurate with age — or showed a normal distribution. The results for both study groups may be defined as consequences of terminal agony, but failed to reveal the cause of the sudden infant death.

Zusammenfassung

100 Hypophysen von SIDS-Fällen (58 männlichen und 42 weiblichen Geschlechtes mit einem Durchschnittsalter von 5,34 ± 3,12 Monaten) wurden untersucht. Die Kontrollgruppe bestand aus 19 Hypophysen (14 männlichen und 5 weiblichen Geschlechtes mit einem Durchschnittsalter von 5,63 ± 2,52 Monaten) mit jeweils eindeutig geklärter (z. T. nicht-natürlicher) Todesursache. Die lichtmikroskopischen und immunhistologischen Untersuchungen zur Typisierung der einzelnen Zellgruppen zeigten regelrecht entwickelte Hypophysen. Unspezifische Nekrosen und Blutungen fanden wir in zwei SIDS Fällen und keinem Fall der Kontrollgruppe. Hyperämien bestanden in 51 (30 M/21 W) SIDS-Fällen. Mikrofollikel (54%), Zysten der Intermediärzone (14%), Reste der Rathke'schen Tasche (44%), Erdheim'sches Plattenepithel (8%) oder Speicheldrüsenheterotopien (3%) bildeten keine als signifikant zu wertenden Befunde. Bezüglich der immunhistologischen Verteilungsmuster der dargestellten Zellen fanden sich für die Quantitäten keine Auffälligkeiten. Die intrazellulären Vacuolen bei ACTH- und gonadotropen Zellen zeigten keine signifikanten Unterschiede. Die S-100 Protein-positiven Zellen ließen sich altersentsprechend stellenweise gar nicht und sonst nur regelhaft darstellen. Die Ergebnisse können als Folgen der terminalen Agonie, nicht aber als Ursache des plötzlichen Kindstodes interpretiert werden.

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Dedicated to Prof. Dr. H. D. Herrmann (Hamburg) on the occasion of his 60th birthday

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Reuss, W., Saeger, W. & Bajanowski, T. Morphological and immunohistochemical studies of the pituitary in Sudden Infant Death Syndrome (SIDS). Int J Leg Med 106, 249–253 (1994). https://doi.org/10.1007/BF01225414

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  • DOI: https://doi.org/10.1007/BF01225414

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