Papillary hypertrophy

Gan XT, Rajapurohitam V, Haist JV, Chidiac P, Cook MA, Karmazyn M (2005) Inhibition of phenylephrine-induced cardiomyocyte hypertrophy by activation of multiple adenosine receptor subtypes. J Pharmacol Exp Ther 312(1) 27—34 Gardner NM, Yates L, Broadley KJ (2004) Effects of endogenous adenosine and adenosine receptor agonists on hypoxia-induced myocardial stunning in guinea-pig atria and papillary muscles. J Cardiovasc Pharmacol 43(3) 358-368... 

The keratinized epithelium of the eyelids gradually transforms into the moist mucous membrane of the conjunctiva. The palpebral conjunctiva adheres tightly to the tarsus over the entire superior eyelid, as compared with the loosely adherent inferior palpebral conjunctiva. Clinically, this anatomic variation contributes to the different appearance of papillary hypertrophy occurring in the superior versus inferior palpebral conjunctiva. 

Figure 25-15 Mixed follicular-papillary hypertrophy in adult inclusion conjunctivitis.

Chronic therapy in animals has caused cardiac hypertrophy, cardiac dilation, and epicarditis. The characteristic lesion in rats and dogs is focal necrosis of the papillary muscle and subendocardial areas of the left ventricle. 

The most striking aspect of psoriatic skin under the microscope is the tremendous epidermal hypertrophy accompanied by its equally well developed papillary blood supply. As discussed previously, in psoriasis the. lower 3 cell layers are the germinative or dividing cell population. Most likely the number of cell layers that can divide is determined by their distance from a blood vessel, since in elegant studies of the hair follicle (whose papilla resembles in many ways those of the psoriatic lesion) Van Scott et al. (V5) have shown that this critical distance is approximately 180 fi. Does this increase in germinative population necessarily imply a thickened epidermis ... 

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