Table 1

Characteristics of patients, histology and confocal microscopy findings

CaseSexCOVID-19 PCR statusCOVID-19 IgGHistology, site of apoptotic cellsSubserosa (IF)Muscularis propria (IF)Submucosa and lymphoid follicles (IF)Mucosa (IF)
1MaleNegativeReactiveMuscularis propria and subserosa01+1+1+
2MaleNegativeReactiveTransmural1+2+3+2+
3FemalePositiveNon-reactiveTransmural02+1+1+
4FemaleNegativeReactiveTransmural3+3+3+0
5FemaleNegativeReactiveSubserosa02+03+
6MaleNegativeReactiveSubserosa, lymphoid follicles2+3+3+2+
7MaleNegativeNot doneMucosa, muscularis propria0001+
8FemaleNegativeNot doneMuscularis propria2+2+2+2+
9FemaleNegativeNot doneSubserosa1+1+02+
10FemaleNegativeNon-reactiveMuscularis propria and subserosa02+1+2+
11MaleNegativeNon-reactiveSubserosa01+1+2+
12FemaleNegativeNot doneSubmucosa1+1+1+1+
  • Apoptotic cells were semiquantitatively assessed and visually graded from 1 to 3+ (at 20×). 0: no IF-positive cells; 1+: less than or equal to 5 cells/high-power field; 2+: between 6 and 10 cells/high-power field; 3+: more than 10 cells/high-power field.

  • IF, immunofluorescence.