Circulatory disturbances 1 Pulmonary edema From cases of

Circulatory disturbances 1

Pulmonary edema From cases of the Pathology Department - U. M. F. “Gr. T. Popa” Iasi Fig. 12. 1

Fig. 12. 2 Fig. 12. 1 -2. Alveolar wall thickening by parieto-alveolar capillary congestion and septal interstitial edema. Alveolar lumen is occupied by a transudate replacing the alveolar air.

Chronic passive congestion of the lung From: Stevens A. J Lowe J. Pathology. Mosby 1995 Fig. 12. 3 (1) The alveolar wall is thickened by congestion of parieto-alveolar capillaries. (2) The alveolar lumen: (a) microhemorrhage; (b) siderrophages - hemosiderin leiden macrophages (heart failure cells);

Chronic passive congestion of the lung From cases of the Pathology Department - U. M. F. “Gr. T. Popa” Iasi Fig. 12. 4 (1) thickening of the alveolar wall by congestion of parieto-alveolar capillaries. (2) intra-alveolar microhemorrhage; (3) intra-alveolar siderrophages contain hemosiderin pigment staining in blue with Perls reaction.

Chronic passive congestion of the liver From: Stevens A. J Lowe J. Pathology. Mosby 1995 Fig. 12. 5 The appearance of „muscad liver” or “nutmeg liver” is caused by alternation of red areas of centrolobular stasis and pale areas of mediolobular steatosis.

Chronic passive congestion of the liver From cases of the Pathology Department - U. M. F. “Gr. T. Popa” Iasi Fig. 12. 6 (1) The centrolobular veins and the adjacent synusoid capillaries are distended and filled with blood. The centrolobular hepatocytes suffer atrophy by compression and hemorrhagic necrosis. (2) The mediolobular hepatocytes present steatosis (hypoxia). (3) The periportal hepathocytes are normal.

Cerebral haemorrhage by erithrodiapedesis From cases of the Pathology Department - U. M. F. “Gr. T. Popa” Iasi Fig. 12. 7 Cerebral microhemorrhages (small hemorrhagic foci centred by congestive capillaries with intact endotelium); erithrocytes form a ring around cerebral capillaries (extravasation of erythrocytes from vessel lumen is made by erythrodiapedesis).

Subcutaneous bleeding petechiae and purpura From: Stevens A. J Lowe J. Pathology. Mosby 1995 Fig. 12. 8 Skin bleeding of petechial type in allergic vasculitis.

Subarahnoidian haemorrhage From: Stevens A. J Lowe J. Pathology. Mosby 1995 Fig. 12. 9 Subarahnoidian diffuse bleeding occurs by rupture of the malformated cerebral arteries.

Cerebral Haematoma From: Stevens A. J Lowe J. Pathology. Mosby 1995 Fig. 12. 10 It is a voluminous collection of blood that deforms the affected tissue; by destruction of lateral ventricle walls can result intraventricular flood.